MAKING YOUR OWN INSULATION PANELS
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ChicoUser is Offline
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22 Dec 2007 09:03 AM
Dear sirs,

This is such an interesting website and I'm so glad I found it!!

For many years I've been considering building my second timber frame home. My 1st house which was built over 20 years ago was out of an Alex Wade book called Energy Saving Houses.
Alex Wade went on to write another book, and in it he describes how to build your own Insulating Panels. He had pictures and easy explanations on how to build those panels.

The next house I'd like to build will once again be a post and beam home but this time I'd like to enclose it with some kind of panels which I build myself. The 1st one was simply enclosed by filling in between ths posts and beams with traditional stud and fibreglass. I've been dreaming for a long time now to start a second house which would use some sort of panels rather than the fibreglass infill method.
Since my panels don't have to be structural, I believe I should be able to build them myself onsite.

Can anyone tell me if there's any good literature out there on how to build your own Insulating Panels?

Chico
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22 Dec 2007 06:07 PM
Chico

Great question. As a long time DIY’er, I always have a tendency to look at something and ask, “Can I do this myself and save a little money?”. Most of the time, I can. But there are times when it’s just better and cheaper to buy it. I think this is one of them. Here are some of the problems.

First, it wouldn’t be difficult to put up a couple of OSB panels, and hold them in place, but find out what it would cost to fill the panel forms with foam. It would have to be done very carefully as to not balloon the walls, and not have any voids.

Second it would be much more difficult to wire as there wouldn’t be any chases formed into the walls, making you cut chases into the walls for outlets and switches.

Third, working with foam is a very sticky proposition. You have to wear protective clothing to work with it.

Fourth, how much time would it take to make your own panels, cutting in electrical chases, and roughing in doors and windows vs. setting up purchased panels yourself with windows and doors roughed in?

I had considered purchasing bags of foam beads and just fill the walls. But if you had to put a hole in the wall, like for an outlet, all the beads would run out. If you are planning on a SIP roof, might as well get the whole package. Maybe somebody has come up with a DIY plan for insulated panels, but I don’t know of one. If you find one, share it and we can take a look at it to see if it might work. Good luck with your project.

Steve Etten
www.GrandCountySIPs.com
[email protected]
Steve Etten
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22 Dec 2007 06:42 PM
Posted By Chico on 12/22/2007 9:03 AM
Dear sirs,

This is such an interesting website and I'm so glad I found it!!

For many years I've been considering building my second timber frame home. My 1st house which was built over 20 years ago was out of an Alex Wade book called Energy Saving Houses.
Alex Wade went on to write another book, and in it he describes how to build your own Insulating Panels. He had pictures and easy explanations on how to build those panels.

The next house I'd like to build will once again be a post and beam home but this time I'd like to enclose it with some kind of panels which I build myself. The 1st one was simply enclosed by filling in between ths posts and beams with traditional stud and fibreglass. I've been dreaming for a long time now to start a second house which would use some sort of panels rather than the fibreglass infill method.
Since my panels don't have to be structural, I believe I should be able to build them myself onsite.

Can anyone tell me if there's any good literature out there on how to build your own Insulating Panels?

Chico
Chico;

for those people wanting to build their own sips please go to:

LINK
ChicoUser is Offline
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23 Dec 2007 08:47 AM

Steve, thanks for your reply.

I had priced EPS foam board many years ago with the idea to make up the panels using OSB both sides and installing the gyproc on the inside face. Then the panels could be tipped up into place from the outside. I wasn't planning on actually working with the foam.

Once I find a supplier of foam board I'll price it out and compare it to buying them already made. Keep in mind that mine don't need to be structural. I also plan on cutting chases before installation.
The roughing in of doors and windows can easily be done after the walls are up.

I dug out Alex Wade's book called "Guide To Affordable Houses", written in 1984. In one of the chapters he talks about "Insulated Panels". He also priced out the difference between buying the panels from a manufacturer and making them yourself. It was cost effective back then. I've yet to find out if it is nowadays.

I'm retiring from my current job and will have time on my hands to devote to a second post and beam and house. This time I plan on acting as general contractor.

I see you are with Grand County SIPS. Maybe you could give me an idea of the cost of panels from your company although you would be too far for delivery to my area.

I'll scan the pics out of Wade's book and post them to see if I can get some comments.

Chico



 

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23 Dec 2007 12:13 PM
Dear Chico,

The fact of the matter is yes, this can be done by a do-it-yourselfer.  I have been looking into this for several months now because I hope to begin building SIP panels myself.  Now the instructions I am giving you won't result in a SIP panel that would be certifiable but it would certainly work just fine.  If you do it on the cheap, you might get by with an investment of less than $1000.

Order ISOSET adhesive from Ashland Performance Chemicals.  Tell the rep what you want to do with the stuff and he'll help you select the correct ISOSET product.  Though it should be applied with a roll coater, if you are careful, you can measure out how many grams of adhesive you need on your panel and with a floor paint roller that is loaded with adhesive, spread the adhesive on your OSB. 

Do the same thing with the other sheet of OSB and then stack everything together and place it in a vacuum press that can be manufactured pretty easily.  The panel will have to cure in the vacuum press for an hour or two but that's okay.  The ISOSET adhesive system is very forgiving though it takes a long time to cure.  If you want a faster cycle time in your vacuum press, go with one of Ashland's ISOGRIP adhesive systems.  They are moisture-activated and that whole process is a little trickier.

The vacuum press will need to apply about 6 PSI (roughly 12 inches of HG)  in order to spread the adhesive and guarantee that the adhesive has penetrated the pore spaces in the OSB and the EPS. 

People would laugh at you if you tried to sell these panels though I know of at least one manufacturer who applied his adhesive like this.  For your personal dwelling where there are no building codes, this would probably work just fine. 

Achieving accreditation to manufacture SIPS panels is expensive and time consuming.  The minimum equipment required to do it right with repeatable results that would satisfy a third-party quality assurance inspector runs in the neighborhood of $75K.  You can plan on spending $1000 a month on your "third party quality assurance" consultant.  I guess it's a necessary evil -- otherwise, the overall quality of SIP panels might suffer and the folks who make good panels would get a black eye along with the folks who don't invest in the right equipment to produce consistent panels.

By the way, the SIP industry is very hush-hush about how to build panels.  It took many phone calls and letters before I ever got straight answers from anyone.  The people who sell the adhesives -- Ashland Performance Chemicals and Rhom and Haas -- were the ones who were forthcoming with details about how to get this job done. 

Christmas blessings to you and your family!

Eric


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23 Dec 2007 01:32 PM
Posted By The Postman on 12/23/2007 12:13 PM
By the way, the SIP industry is very hush-hush about how to build panels.  It took many phone calls and letters before I ever got straight answers from anyone.  The people who sell the adhesives -- Ashland Performance Chemicals and Rhom and Haas -- were the ones who were forthcoming with details about how to get this job done.

HaHaHa. Well maybe. I've toured 3 manufacturing plants(and trained at 2 of them), and they never asked me to put on a blindfold. The only 'secret', at one plant, was the cure time of the adhesive. They told me, but what they told the employees was a bit less so as to instill a sense of urgency into them.
....jc<br>If you're not building with OSB SIPS(or ICF's), why are you building?
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23 Dec 2007 04:48 PM
Chico,

Your idea of purchasing the EPS foam board is much better than what I was thinking about. I might wait until I have all the windows and doors in before I put up any sheetrock. You’ll also need a foam cutter to cut the foam back for your wood framing around doors and windows. I would suggest making an estimate for doing it yourself, including the time spent gluing and assembling the panels and an estimate for purchasing the panels. It might be very time consuming to build the panels and then rough out all the doors and windows. There is an adapter that’s available that attaches to a chainsaw that makes short work out of cutting out the rough openings. I would encourage you to purchase ready made SIP panels for your roof.

Any local dealer should be able to get you a free estimate. Most big SIP manufacturers don’t sell the panels directly to the customers, but rely on reputable dealers to take care of all the details. Go to the manufacturers web site and look for local dealers in your area.

Basically, that’s what I do. To put it simply, I’m the middle man between the manufacturer and the customer. Not knowing your local codes, local taxes and your location makes it very difficult (if not impossible) to give you a panel price. If you are building in the Western USA, email me and I might be able to put you into contact with someone who can help you.

I’m very interested in seeing how your DIY panels turn out. Keep us posted.

Steve Etten
www.GrandCountySIPS.com
[email protected]
Steve Etten
ChicoUser is Offline
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23 Dec 2007 04:51 PM

Eric.

I take it you will buy EPS foam board rather than manufacture it.

I wonder if anyone has any experience using the 3M type Mastic Adhesives for this purpose.

Since my panels will not be structural do I really need to use a vacuum press and if so are there plans available for these.

Chico

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23 Dec 2007 05:15 PM

Steve,

Ok and thanks again.

Actually I plan on installing the sheetrock on the panels before installation. I will cut the openings for doors and windows letting the sheetrock project into the openings. The window casement then goes behind the sheetrock. The panels can easily be taped and painted with primer this way.

I live in Southern Ontario, too far from you but will look for the nearest supplier of foam board. Like I said I did contact one many years ago and the plans got dropped for various reasons.

I hope someone can provide some comment on the above method as I've never used it myself.

Chico

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25 Dec 2007 03:54 AM
Hi Chico,

I am planning on buying EPS foam blocks from a local manufacturer.   Over the next couple of months, I hope to experiment with different designs for vacuum tents/tarps -- I can't find any designs myself but I have heard that this is becoming more popular with small-scale manufacturers.   It seems like most of the large-scale manufacturers use air-pod presses or hydraulic presses but the capital expense is huge!

Chico, I think it's great that you are exploring this process; hopefully, if enough people get interested in manufacturing SIPs panels on a small scale, affordable equipment will become available that will consistently produce high-quality panels!

By the way, the recent revision in the IRC states that if SIP wall panels are manufactured according to certain guidelines and used in certain ways, and if you have a proper quality assurance program in place, your wall panels don't need to be tested in order to be considered "certified" so this should make it easier for "independents" to begin manufacturing SIPs panels for residential walls.  I don't know where you live but maybe there is a need you could fill as a manfacturer of these panels in your area. 

Merry Christmas!

Eric
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25 Dec 2007 08:51 AM

Eric,

Merry Christmas.

I'm in Southern Ontario, this is mentioned in the e-mail you replied to.
I'm just getting back into this and haven't explored what's available in this area. Although I'm sure I'm going to find out soon.

I'm actullay not in need of building a SIP but rather an IP (Insulating Panel) to enclose a post and beam home. I'll be approaching the building inspector very soon in the area where I want to build the home.

As this is kind of a way to have a second income on top of my pension because I'm retiring soon, I'm always interested in developing an idea and have been dreaming about SIPS and post and beam homes for the last 20 years.

From your prespective, is it cost effective to build your own panels and do you have any info you can share on home built presses.

Chico

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08 Jan 2008 08:19 PM
I think Alex's process is described in Design and Construction Handbook for Energy Saving Houses, and Guide to Affordable Houses. If you do not need any structural rating his technique of simply using construction adhesive to laminate OSB, EPS and drywall seems perfect.

The one post and beam house I have built with SIPS used manufactured panels also with only DW on the inside, and with two chases cut into the EPS. Here in So Calif the building codes are very strict, (seismic loading) and our jurisdiction (LA county) gave us no sheer rating for the post and beam frame. We had to infill the panel's edges with 2x6s and install Simpson clips to the frame, as well as adding a few sections of stud framed sheer wall and a bit of sheer membrane in the decking

Making retrofit changes to the wiring and plumbing is indeed a problem as compared with stud framed houses. EPS foam can be easily sliced to any thickness and chases cut with a hot wire, whcih most foam supliers should do for a minimal fee.

My largest concern with Alex's system is the use of gutter nails to install the panels. I found this thread looking for some other techniques as I am planning on making some small portable site built sips structures and was looking for ideas. I'll post if I find any good solutions.

Nesdon
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08 Jan 2008 08:35 PM
Posted By nesdon on 01/08/2008 8:19 PM
I found this thread looking for some other techniques as I am planning on making some small portable site built sips structures and was looking for ideas. I'll post if I find any good solutions.

If you aren't going to use manufactured SIPS, why use SIPS at all? You can achieve very good results with double wall construction:


....jc<br>If you're not building with OSB SIPS(or ICF's), why are you building?
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08 Jan 2008 09:34 PM
I am intriqued by the material economy, ease and speed of construction and modularization all inherent in this sort of design. The insulation value, especially here in so cal, is less important. I've been looking for some more efficient techniques for small sheds and cabins. The use of standard balloon framing seems excessive for such small structures. laminated insulated panels seem ideal.

BTW Chico, we just used circular saws and sawzalls to cut door and window openings in the panels after they were installed. It was very easy.
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09 Jan 2008 05:53 PM

Good point but I will use an IP rather than a SIP. I would still like to build a post and beam frame because I think they look awesome on the inside. Panels to enclose the post and beam frame are easily put together using unskilled labour and go up fast.
That double wall you're proposing can that be built in the form of a panel. That would be really interesting!! Might save me looking for foam.

Chico

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09 Jan 2008 05:56 PM

Nesdon,

Finally I'm getting the feedback I hoped for. Thanks for the info. Yeah I knew you could just use a circular saw to cut out the openings. Did you build a frame into the opening or did you just simply insert the windows into the openings. What size circular saw did you use?

Chico

 

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09 Jan 2008 10:09 PM

Hi Chico,

I did frame the openings. Dug out a bit of foam and flushed and leveled 2x6 inserts, then flashed them with reinforced building paper. This gave us backing on the inside for our finish, and a solid atachment for the jambs. With OSB on both sides, you might get away with using the finish and foam sealant to hold the jambs, but especially with all the working you get with doors, I'd think most panels would spec inserts.

We have 5.5" foam, rated at R32 overall if memory serves (it often doesn't) so we made cuts half way with a 7.25 skilsaw on the OSB side and then finished the rest of the foam and DW with the sawzall. Could have been done with a beam saw, a chain saw, or sawzall all the way, but the circ saw makes nice straight cuts and is easy to handle. With OSB on both sides, it migh be harder to get the two cuts to line up well, although it hardly matters with the 2x6 inserts.

BTW the stud sheer walls have  been used numerous times since we put the house up to add power and comm wiring.
 
Nesdon

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10 Jan 2008 06:39 PM

Nesdon,

I believe I'll also frame the window and door openings like you did.
Were you using maunfactured panels?
I know you would like to build your own panels. Did you do any research on where to buy the foam? Could you explain what a stud sheer wall is. I presume that's a wall you build on the inside.

Chico

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10 Jan 2008 09:02 PM
I am also located in Southern Ontario, (Flamborough area). I have a 1,200 sq.ft. old timber frame structure on the property. I was thinking of insulating it with insulated panels. I got a quote from Thermapan (Fort Erie) at $6.30 / sq.ft. for 6.5”, plus transportation. It is very expensive for a structure that will be for shop only so I am looking for another way to insulate it. I am also considering making the panels myself considering they don’t have to be structural. I have just started of investigating so I don’t know where I can purchase the foam in the area. I will let you know what I find in our area.
Dan



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10 Jan 2008 09:36 PM
Okay, guys, here's the unvarnished truth. Even in Alaska, I can build a 4' X 8' X 6.5" panel for $80. The OSB is $10/sheet, the glue provided by Ashland Chemical is $10 and the foam is $45. Down South, your costs should be WAY below $2.50 per square foot if you build them yourself because your foam and your OSB is half of what we pay for it. For about $2500, you can build a vacuum press that you could use to make panels all day long. You could apply the IsoSet adhesive with a roller if you weren't intending to sell them to the public. You can do about as good of a job with the adhesive application with that as you can do with a roll coater. In fact, the vacuum press ought to work better than many of the hokey hydraulic presses that the big boys use because the pressure is totally uniform. on

I guess I'm on a crusade to "bring SIPs to the masses!" :>) I realize that certification costs are very high for manufacturers but they are making a TON of money on these panels! I'm looking forward to the day when there will be a vast network of small SIPs producers who put out excellent quality panels. Alaska, for one, desperately needs that and I intend to stand in the gap. I'm in the process of starting my own fab right now. Everything is going to be done the hard way at first -- lots of manual labor and not a lot of automation. But hopefully, someday, we'll be able to automate and produce panels that will help my neighbors save a lot of money that's currently going to the local gas utility. And we'll sell them for Lower 48 prices.


So there! I'm off my soap box!

Eric

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10 Jan 2008 10:17 PM
This is reallly not a new topic, and was discussed at length maybe two or three years ago.
Someone even talked about buildingarig to make PU pannels by simply building a cage
with rail way ties over it and chains to containit, then let the pu expand.

I don't remember the details, so you will need to search the archives.

What I am looking for now is a source for large eps sheets as close to central nevada as possible.
Idealy I would like 20' x 8' 8" sheets but I suspect that is too much to ask for. Hopefully someone
knows of an eps supplier who will sell a reasonable amout of eps sheets to a single buyer, and
ship them to Nevada.

Bruce
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10 Jan 2008 10:29 PM
For non structural panels you could get the non or slow expanding pu.
Build some frames to keep your osb, or whatever kind of sheeting you want in place,
pour in the pu and let set. The pu is a two part process, so you will need to invest in some
equipment. It is either that or go with the Foam-o-foam kits, but those are a bit pricy.

This actually might be a better solution for you Chico. You can do all of your wiring and plumbing
in the open with suitable supports, provided you are careful about thermal bridging, and then
pour in the low expanding pu.

You still need to be careful about the necessary support, but nothing like it would be if you were pouring concrete walls.

Anyway, I hope this was helpfull,
Bruce
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11 Jan 2008 11:52 AM
Posted By Petru on 01/10/2008 9:02 PM
I am also located in Southern Ontario, (Flamborough area). I have a 1,200 sq.ft. old timber frame structure on the property. I was thinking of insulating it with insulated panels. I got a quote from Thermapan (Fort Erie) at $6.30 / sq.ft. for 6.5”, plus transportation. It is very expensive for a structure that will be for shop only so I am looking for another way to insulate it. I am also considering making the panels myself considering they don’t have to be structural. I have just started of investigating so I don’t know where I can purchase the foam in the area. I will let you know what I find in our area.
Dan




Dan;

you may want to try contacting some Canadian refrigerated panel mfgs. for "seconds" in steel or aluminum skins that would probably give you a better interior finish for your shop and could probably be had for 50 cents on the dollar
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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13 Jan 2008 09:01 AM

Eric,

Do you have any info on how to build the vacuum press? Where are you getting the foam?
If you get set up I'd be interested in doing that down here in southeren Ontario.
Your cost of $2.50 per sq ft is much more attractive than buying the foam in slabs.

I would build the panels for myself and therefore would not need certification.

This also goes out to anyone out there who could help on info on vacuum presses, where to buy foam and glue.

Chico

 

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13 Jan 2008 03:18 PM
A technique used by skateboard and ski laminators is to use old firehouse, clamp off one end and fit a compressed air fitting to the other. Tho I think this much pressure would not be necessary. EPs has become such a common material I doubt You should have much trouble. A quick google search yielded this:

Plasti-Fab
The Largest Canadian EPS foam supplier
[b]1-88-THINK EPS
(1-888-446-5377)
[/b][u]Web Site: link[/u]

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13 Jan 2008 03:34 PM

Nesdon,

I'm going to take a guess and say that the firehose would be used as a clamp.

I took a look at the Plasti-Fab website and I believe they're mainly supplying the ready made products. For now I'm investigating the idea of buying the liquid foam and making my own panels using a press. Any comments?

Chico

 

 

 

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14 Jan 2008 10:41 AM
Chico,

This is Eric.  Please call me at 907-398-9231 and I'll go over with you what I know about the vacuum tents so far.  I don't have a perfect solution that I'm able to share with everyone yet but I'll tell you what I learned from talking with a guy who makes and sells them.

Later!

Eric
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17 Jan 2008 05:48 PM

Petru,

Have you had any luck in finding a supplier of EPS foam here in Ontario. I contacted Plasti Fab and they directed me to Home Hardware and that's not really what I'd like to do.

Chico

 

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22 Jan 2008 09:44 PM

Petru,

I have a quote from Home Hardware on the foam. 6" foam 4 by 9 ft is $64.00. R value is R22 (Type 1). Plastifab is the manufacturer. 7/16 OSB is $6.00 each. Total cost for a 4 by 9 ft panel 6 " thickness foam with OSB inside and out will be $76.00 or $2.11 per sq ft. This does'nt include taxes but should include delivery.

Chico

 

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22 Jan 2008 10:09 PM
At that price Chico, does it include adhesive? Regardless, thats cheap enough that I would just fur out the interior with 2 by 4's and run wiringThrough there. ALso, that will give you something from which to hang cabinetry.
Also as far as the window and door jams, I would look in to getting C Channel or what I call track cut to size and to be screwed into the OSB. That eliminates wasting time and frustration of cutting out an 1.5" of foam out of the skins.
Way to investigate that process DIYer!

Charles
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22 Jan 2008 11:16 PM
Hello Chico.
Have you tried contacting the EPS molders direct for a quote? You may as well cut out the middle men.
LINK

Which glue will you use?

Please keep us posted on your progress.

Regards,
Nolan
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23 Jan 2008 06:28 PM
Chico

Talked to the rep for Plasti Fab. You were right, they don’t deal with the public. They gave me some info on the product. They have EPS type 1, R value 3.75 / inch, type 2, R value 4.04 / inch and type 3, R value 4.27 / inch. They custom slice orders from 24” blocks. Your quote appears to be type 1.

Petru
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23 Jan 2008 08:01 PM
No it does'nt include the adhesive, so add maybe $10 bucks per panel.

I was planning on putting the gyproc straight onto the OSB so i don't think I'll add the 2 by 4's. I'm contemplating putting the gyproc on before I tilt the panels into place as I think this would speed the process up. Less joints in the gyproc to tape because the posts would hide them.
I'd rather route out a channel for the wiring

Chico
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23 Jan 2008 08:08 PM

Nolan,

Thanks for the link buddy. I was hoping someone could provide me names. There's even a supplier in my hometown of Barrie in Ontario. Before I get too excited I'll contact them tomorrow and let you know what they say.

I have'nt decided on the glue and it'll probably depend on what's available locally.

Chico

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25 Jan 2008 06:29 PM

Petru,

I've got good news. Thanks to the link Nolan sent me I was able to find a supplier in Toronto.www.legerlite.ca 416 335-0192. They gave me a quote of $38.40 per panel, 4 X 8 ft X 6" thick. Type 1, EPS. Total R value will be 22.5.
I calculate $12 for 2 sheets OSB, $38.40 for the EPS, $10.00 for adhesive for a total of $60.40 per 4 by 8 ft panel finished. Which makes it $1.88 per sq ft.
They custom slice from 30" blocks.
They don't deliver, but I'd be happy to pick it up at that price.

Chico

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25 Jan 2008 06:51 PM
Chico

That is good news! That’s half price compared to Plasti Fab. I found EPS adhesive at Rona. It’s made by Dural. They are discontinuing the product and liquidating it at $36.56 per 5 gallon pales. Regular price is $73.00. You can cover approximately 250 sq.ft with one 5 gallon pale. For a panel with glue on both sides you are looking at $0.30/ sq.ft.. The only problem that may be with this product is it sets in 10 minutes. You have to work fast to apply the glue on both sides and set it in a press. The advantage is not having to wait too long between panels. I purchased a small can today and will test it to see how it will work Will let you know what I think.

Dan
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25 Jan 2008 07:43 PM
Chico

I have an idea for pressing the OSB’s to the foam. I am installing the panels over a existing timber frame structure therefore they don’t have to structural. I only have a 1,200 square foot shop to enclose. I am not interested in making this panels other than for this structure therefore I am not looking to invest in expensive equipment. I think you may be in the same situation. Got to keep that cost down. Hear is my idea. I am going to use 2 x 12” pine beams to make a press. I will build a platform using 2 x 12s cut at 4’ long. Use the jointer to make sure they have a straight edge. Set them on edge on a perfectly flat surface. I am thinking of setting one every 10” or so. Once you have a perfectly flat surface nail couple of 2 x 4s on the ends to hold them in place. Repeat the process and make an identical platform. Set one platform a foot or so off the ground. After you lay the OSB’s and the foam on top of the platform place the second platform on top. Tighten the platforms using pipe clams at each end of the 2 x 12s. If you have enough time you could try making two panels at once. You can also make couple of presses to speed the process. Let me know what you think.

Dan
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25 Jan 2008 10:52 PM

Dan,

So it looks like the glue from Rona works out to $10 per panel. As far as your press, I'm having a hard time picturing it but I think since we don't need much pressure for the application we'll be using the panels for then your idea should work because pipe clamps would supply enough of the pressure you would need to allow the glue to bond.
In the mean time I'll try to come up with another idea.

Chico

 

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25 Feb 2008 12:22 PM
Hi, I've been following this thread for a while... thanks for all the great info.
I found a source of reclaimed styrofoam roof panels, 4" thick, R20 value. My panels do not have to be structural either.
I am thinking of using this material, double layer it and use it as roof insulation. Placed between two pieces of osb, would this still have to be be glued together?
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26 Feb 2008 06:25 AM
is anyone interested in ones made in china for US $25.00 ex shipping - skin is made of 5mm mgo (magnisium oxinde) with 75mm eps. zsize is 1.2m x 2.5m .soory i live in australia and all is metric here
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29 Feb 2008 05:23 PM

Joe,

Believe it or not we're supposed to be Metric here in Canada also but the building industry still persists with Imperial. It's hard for some of us to refer to a two by four as a 50 by 100.
Our tape measures quite often are in both measuring systems.

As far as your question goes, it seems like a good price however unless the EPS has a really high R (Insulating Value) then it's too thin for here. The eps I'm looking at using is approx. 150mm thick.

I've seen a website in China that has a contact here in Toronto and they make the panels specifically for the Canadian market. I never got a price from them because in the end it's just a lot easier for me to build them locally now that I have a quote that makes it quite reasonable.

Thanks,

Chico

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29 Feb 2008 05:30 PM

I'm not an expert but I think I would use a certain amount of glue to hold everything together even though the panels aren't structural.

Definitely you're going to have a nice roof insulation system in the end.

Chico

 

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29 Feb 2008 05:58 PM
Hi Chico,
    Did you aquire a list of supliers for the really thick EPS?
My sittuation is that I don't need structural either, although  I will be bonding one side to
galvalume using a vacumn settup. I need sources for the EPS close enough to Eureka Nevada
that won't kill me on shipping.
Bruce
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29 Feb 2008 08:51 PM
Try this site: http://www.epsmolders.org/2.html.

and then this is an exerpt from an earlier e-mail I sent about a supplier I found near me:

"I've got good news. Thanks to the link Nolan sent me I was able to find a supplier in Toronto.www.legerlite.ca 416 335-0192. They gave me a quote of $38.40 per panel, 4 X 8 ft X 6" thick. Type 1, EPS. Total R value will be 22.5.
I calculate $12 for 2 sheets OSB, $38.40 for the EPS, $10.00 for adhesive for a total of $60.40 per 4 by 8 ft panel finished. Which makes it $1.88 per sq ft.
They custom slice from 30" blocks."

You should be able to find a supplier near you who will slice the foam whatever thickness you want out of 30".

Good Luck
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23 Mar 2008 07:19 PM

Brett,

I don't aniticipate having problems with the building inspector due to the timber frame providing the structural strength.
I think your idea of using come along straps would work becuase all you really need is enough clamping pressure for the glue to bond to the material being used. Since your panels and mine are not Structural Insulated Panels (SIPS) but are Insulated Panels (IPS).

I built a home up near Pembroke some years back and had no problems with the building inspector. It was a matter of sitting down with him and convincing him that I was building a solidly built home according to code. It was a post and beam home with traditional studs between the posts. I used fibreglass insulation between the studs. I'm pretty sure the panels that you and I are proposing to use would be an improvement over that system that I used.

Take a look through the e-mails in this thread and you'll find that it should work out substantially cheaper to build your own panels and I'm convinced you don't have to be an expert craftsman.

However please don't take me for an expert. I don't do this for a living. I've only built the one house!!

My research is at a standstill as I am being posted to Kingston and am waiting till I move there to start looking for land.

Pse let me know if and when you start building and I would be interested in any new info you are able to provide.

Thanks,

Chico

 

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31 Mar 2008 09:08 AM
Great info here. I'm in southern Ontario and looking to enclose a timber frame with SIPS. I want to manufacture the SIPS myself but have a few questions I'd appreciate some clarification on.

First, am I correct to believe I can use non certified or registered SIPS in the construction of a house for myself or for sale?

Second, all posts except the second one suggest the preferred method of manufacturing SIPS is by gluing OSB under pressure to both side of the EPS. The second post suggests you could set up a mold using the OSB as the two main sides and spray the foam in between and let the foam itself adhere to the OSB. I've looked at a couple of manufacturing systems on the web and they seem to use the gluing method also. The gluing process seems to be preferred but I have not picked up any particular reason except maybe the mess of foaming. Can someone clarify which is preferred and why.

Finally, there seems to be lots of info on EPS based panels, can they be made with Soy based foam?

I noticed a number of questions related to the building process once you have the SIPS made. This link may be of help to some

http://www.altbuild.com/images/JLC___Bldg_with_SIPS_8%5B1%5D.06.pdf

I'd appreciate any feedback. Let me know.

Thanks
Charles
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05 Apr 2008 09:01 AM
OK, I have followed this post for almost 4 months, there have been 45 replies and 4128 views.
There been a lot of baggin-off
Which one of you guys is currently making their own panels or are ya'll just still talkin' about it!
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05 Apr 2008 01:53 PM
I found through my resarch into sips a very amiable company that would cut out the middleman in the northeast.

http://www.thermalfoams.com/Default.htm
They go soup to nuts sips to eps in varios thicknesses forms and profiles. Good Luck
Vinnie
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05 Apr 2008 02:04 PM
Hi Tom.
I think Eric is close if not there already.

 I have broadend out and am building a simple hot wire machine. There is also some savings to be had by buying complete Buns from the foam expander companies. What have you done so far with this project?

Regards,
Nolan
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05 Apr 2008 02:37 PM

Nolan;

 

I just thimk it is amusing reading these posts about DIY panels, it make about as much sense as me making my own carpet because I can get a good deal on a loom and yarn.
I predict that when it is all said and done nobody will do anything, its all a bunch of talk eating up valuable oxygen.

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07 Apr 2008 04:26 PM
Remember, there are a lot of us who are looking into making our own panels for reasons other that saving a few bucks.

I agree that if you are planning to build a standard home in an average US town and everyting is strictly conventional,
then building your own sips to ave a few bucks is probably not cost effective. However there are some people in this
world that the above does not apply to. I am intentionally not including examples since I believe that would be a waste of time.

Bruce
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09 Apr 2008 12:28 PM
Posted By PanelCrafters on 01/08/2008 8:35 PM
Posted By nesdon on 01/08/2008 8:19 PM
I found this thread looking for some other techniques as I am planning on making some small portable site built sips structures and was looking for ideas. I'll post if I find any good solutions.

If you aren't going to use manufactured SIPS, why use SIPS at all? You can achieve very good results with double wall construction:



Panelcrafters,

I understand what you are trting to do with this wall but... Good luck sealing it.  Plus you would get killed on labor building something like this.   
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09 Apr 2008 01:31 PM
That is an alien point of view to me Tom.
It reminds me of a person that gets hungry so they have to go to a store to buy their food. I prefer to walk to a garden or check the Chickens for fresh eggs.

When the power goes out and your family is cold, do you sit and wait for someone to fix the problem or do you turn on your generator? Right now I am building a Small diesel generator that uses waste motor oil for fuel. It will also warm the hose with the excess heat.

I have made my own sips (very small scale) in the past. Also; I have made , plywood box beams and Plywood I beams. Right now I am playing with a panel press for making SCIPS (structural concrete Insulated panels). It is all interesting and good to learn.

Is it easier to pay a price and run to a SIP manufacturer? Perhaps, but there are many reasons a person would choose to build their own. Cost, distance, custom  needs or ideas............

The vacuum bag press idea for DIY SIPS is a real option for even a simple DIY person. With that a guy could easily make several at a time.

Would I weave my own carpet? Probably not. I'm not that interested in the process. Instead, I did terrazzo floors in my home. Yes, it was pain in the ass, but when I walk on my floor I know that every piece of brass was carefully mitered and fitted, every batch of crushed marble and epoxy was placed exactly like I wanted it. I ended up with something that was hand made and special.

I wonder what tempers your view only towards buying the panels from someone else. Do you sell panels?

Best regards,
Nolan

PS, real trucks are built, not bought. (commence sticking out chest and do the Tim Taylor, Tool Time grunt)
:)

PPS, I just secured a source for FREE eps. I wish I could share the source but it would not be enough to help many people. The point is, there ARE ways to do SIPS at a lower cost and to meet an individuals goals.
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09 Apr 2008 01:48 PM
Posted By Andy@panelworksplus on 04/09/2008 12:28 PM
Panelcrafters,

I understand what you are trting to do with this wall but... Good luck sealing it.  Plus you would get killed on labor building something like this.

Sealing? Actually not that difficult. 4'x 8' sheets of Styrofoam T&G, just need a good sealant at the edges(Tremco), and all seams taped. Yea, the labor would need to be DIY(free) or SIPS would be less expensive.
....jc<br>If you're not building with OSB SIPS(or ICF's), why are you building?
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09 Apr 2008 02:56 PM

Mortarsprayer;

My deed restrictions don't allow chickens, but then again I woudn't want chickens. Ducks would be OK but not chickens.

When the power goes out my automatic propane generator kicks on in 20 seconds and powers my entire house along with my LPG tankless HW system.

I am a not talker, I am a doer!

If one wants to build there own SIPS  -  go ahead, but I don't want to hear them 2 years from now on this forum wondering why their walls are delaminating.

What scares me is a poor unsuspecting home buyer purchasing a home 5 years after the fact that comes apart at the seams because some gung-ho yahoo wants to stand back and say "Yep I dun it myself"

In the mean time SIPs would get a bad rap because of an idiot

No I do not sell panels, but I am an advocate of letting engineers make engineered products, of brain surgeons doing brain surgery and stump grinders grinding stumps.

It's great you have a free source for EPS, I would recommend that you grind it up and sell box packing.

Is that EPS Type I ? , Type IX? ..Type VIII? or doesn't it matter cause its free, see you all are on dangerous ground and some one is going to get hurt in the process of you guys not knowing what the hell your doing. Hopefully you will just hurt yourself! and it will be a lesson well learned.


 

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09 Apr 2008 04:03 PM
Although there is some merit to your concern about SIP's getting a bad name from someone making a defective panel,
it doesn't really apply to most of the people on this thread. If someone makes a defective panel that is used in a timber frame home, it will not reflect on the integrety of SIP's since it is not being used as a structural panel.

I believe everyone on this thread is well aware of the limitations of home made SIP's and anyone with enough gumption to be making their own is bound to be smart enough to use them in the correct and safe context.
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09 Apr 2008 04:17 PM
Firefox;

I think Tom has a valid point, although the timber frame is a "main structural frame" the other claddings such as drywall, siding and roofing are mainly attached to the DIY panel skins. If not done correctly it would be catastophic.
If the homeowner feels compelled to get involved, It has always been my recommendation to let a seasoned professional install the shell and let the DYI take over all the non-structural parts of the project. If something goes wrong at least you would have some recourse. If you DYI your just stuck
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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09 Apr 2008 04:46 PM
I agree Chris, but within context. If someone were building a regular home which was going to be used for a family dwelling
in a regular community, then I think that the shell construction should all be done by the book using certified pannels,
engineered mods, etc.

However, for unusual stuff like workshops for people who know what they are doing and are used to making their own stuff,
or for cabins out in the wilderness where it is uneconomical or downright impossible to ship premade sips to the location, and
assuming that the person is competent and knows what he is getting into then it is a whole different ball game.

I for one, would love to buy some of your galvalume clad snap together sips, but I would have to rob a bank just to pay for shipping. I would also have to make a considerable amount of modifications for them to fit into my highly irregular structure.
Which I might add, I really wouldn't mind doing to get a certified sip, but the shipping is ridiculous considering where my site is.

And yes, I really don't want a DIY'er bringing down the reputation of SIP's, I just don't think that applies to the majority of people on this thread.

Bruce
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09 Apr 2008 04:58 PM
Firefox;

Now robbing a bank is a good DYI project;

But I disagree with you on the downplay of importance for shops & cabins, anywhere a human occupies space is important and very often those types of spaces are converted for permanent habitation.
Now if someone wants to use home-made panels for a chicken coop or barn, no problem.

Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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09 Apr 2008 05:16 PM
I think we are basicaly in agreement, remember I am talking about SIP's used as non structural panels.
So the worst case is the owner will have to re side his building. If it were a standard residence I would
think it was a bad idea. In the case of someone remodeling for a dwelling, then the building departments would jump in
and straighten everything out. If there are no building departments then the person is on his own anyway,
and most likely not naive to the perils of home DIY construction.

We don't want to discourage competent people from thinking outside the box. Ideas like SIPs and ICF did not
just pop into existance without someone first experimenting and pushing forward until it became a real product.

Bruce
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09 Apr 2008 07:14 PM
 Alden B. Dow  (Dow chemical) in 1952 made the first foam SIP
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29 Apr 2008 12:04 AM
Now thinking about "manufacturing" my own sip panels
will be used not as main structural members, but more as helpers
( on 4' supports for roof/floor use )

can anyone point me to correct adhesives that will be structural enough and maintain grip over time ??
i have already talked with Lepage company..should have some answer from them soon i guess
i know that EPS foam is fragile to reaction with almost all VOC stuff
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30 Apr 2011 12:36 AM
number one, there is no worries for protective clothings depending on glue you use, I used to work for a company in ohio making these, all it is, is plywood, doesnt matter what kind, foam, doesnt have to be anything in particular, and glued together, we used vacuum systems to put a stack of the sips together and left in vacuum overnight. its not complicated, usually 4-6 inch wide foam... dont use the spray in kind. find a company that sells that foam in 4ft by 8ft rectangle 4-6 inches wide.... I hate it when people try to jerk others around... we used to cut holes for wireing,,, easy, directions, 1, plywood, 2, glue, 3 place foam, 4 cut holes with heated wires, 5 glue, 6 another piece of plywood... 7 after dry, cut out squares for windows, doors, or angles for plans of house... wow, real complicated... The company I worked for... http://pacemakerplastics.com/index.html
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30 Apr 2011 07:40 AM
tcase;

What was yor job at Pacemaker?, you should also advise how to make the vacuum bags and the cost of the equipment, how a DIY'er would cut wiring chases, how to allow for splines.
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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22 Jul 2013 02:37 AM
After this very long thread I noticed nobody has mentioned some important information if your going to make your own SIP's.

One is that SIP panels are made from OSB2 which is structural OSB. OSB found in typical retail lumber stores is for sheathing and called OSB1. The glue in SIPS uses structural adhesive and most glues including 1 part moisture activated polyurethane and 2 part reactive polyurethane are not structural adhesive or will soften when soaked or become brittle in cold weather so watch out for that. ISOSET which was mentioned earlier is the right stuff. It must be rolled on, and once mixed you have 10 minutes to use it or lose it.

Also instead of going through all the trouble of clamping or using a vacuum press. Just use a pallet of OSB which I assume you would have bought in bulk to make panels. That should be more than a thousand pounds. Then take a forklift and put the pallet on top of the fresh glued panels. You can even add to this by using the forklift to press even further. If you need more pressure, add another pallet on top
When you see the glue beading out of the edges you know you have enough pressure. Wait two hours and presto. Properly bonded evenly pressed panels.

Also keep in mind there are two types of insulation cores which is Polystyrene and the other is Polyurethane which is superior but not available for DIY as far as I can see. ACHFoam makes the proper sized EPS but also EPS for SIP usually has a fire retardant in it. Some SIP manufacturers also dip their OSB boards in termite repellent.



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22 Jul 2013 01:28 PM
If you are going to make your own SIPs, use steel, weld or braze it up to be airtight and then apply a medium vacuum to it. With a decent filler material (fumed silica, perlite?), you can get R50-R80 in a 2" panel. You may need to reapply the vacuum every 10 years (not hard if you put in a valve). Strength? - treat it as non-structural.
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24 Jul 2013 01:23 AM
When it comes to owner-made SIPs, the most appropriate and forgiving adhesive is the Isoset product made by Ashland chemical: http://www.ashland.com/Ashland/Static/Documents/APM/ISOSET%20CX-47%20tds.pdf    Build yourself a home made vacuum tent and apply eight pounds of vacuum per square inch and keep it constant for about two hours and you are in business.
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24 Jul 2013 08:04 AM
Posted By the_postman on 24 Jul 2013 01:23 AM
When it comes to owner-made SIPs, the most appropriate and forgiving adhesive is the Isoset product made by Ashland chemical: http://www.ashland.com/Ashland/Static/Documents/APM/ISOSET%20CX-47%20tds.pdf    Build yourself a home made vacuum tent and apply eight pounds of vacuum per square inch and keep it constant for about two hours and you are in business.



the_postman,

you forgot one very important instruction: TEMPERATURE
to cold and the adhesive will not set in 2 hours and the panels will delaminate
too hot and the adhesive will skin over before it sets, not adhere and delaminate.
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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24 Jul 2013 08:08 AM

it is about as smart as making your own sheets of plywood with skins and glue, or making your own concrete blocks in your back yard
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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24 Jul 2013 10:28 AM
Posted By cmkavala on 24 Jul 2013 08:08 AM

it is about as smart as making your own sheets of plywood with skins and glue, or making your own concrete blocks in your back yard

I agree. You will also notice that those advocating DIY SIPs are people with only 1-2 posts. They make one post and you never hear from them again. Some are disgruntled employees who use to work at a SIP plant.

It's scary to think that people are attempting this and building a structure using backyard methods. Most likely it has to be a place where building codes are not enforced. Wouldn't be surprised to see delaminated and failed panels.


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24 Jul 2013 10:43 AM
It is an absolute insane idea,
Panel companies spend hundreds of thousands of dollars on engineering and testing, a DYI has no accreditation or documentation for building departments, no recourse if it doesn't turn out good,
a vacuum bag is no small endeavor.
not to mention OSB sheets come in 4ft x 24ft or 8ft x 24 ft sheets, steel comes in 6000# coils
it takes a great deal of space and industrial equipment, just to handle the materials
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24 Jul 2013 02:31 PM
Posted By cmkavala on 24 Jul 2013 10:43 AM
It is an absolute insane idea,
Panel companies spend hundreds of thousands of dollars on engineering and testing, a DYI has no accreditation or documentation for building departments, no recourse if it doesn't turn out good,
a vacuum bag is no small endeavor.
not to mention OSB sheets come in 4ft x 24ft or 8ft x 24 ft sheets, steel comes in 6000# coils
it takes a great deal of space and industrial equipment, just to handle the materials

Excellent points. I have a feeling these "backyard SIPs" are probably worse than Chinese made panels. SIP companies spend hundreds of thousands of dollars, if not millions, into machinery, testing, quality control, etc., to make a panel that will last a very long time. Using stringent QC measures and high end materials.

Throwing some glue onto EPS and weighing them down with blocks in a garage is not a SIP in my book. That one person even mentioned that it doesn't matter what kind of foam you use. So untreated, flammable packing foam is suitable in their book.


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03 Sep 2013 11:00 AM
I agree with the SIP experts who have weighed in here: No, it's impractical to make your own SIPs. But I have a specific non-structural application for a set of insulated doors that I couldn't find commercially available, and it came down to this: Could I make a stiff, flat,light, stressed skin insulated panel door? Here's a link to what I did: http://www.youtube.com/edit?ns=1&o=U&video_id=9FABz-xEnQA
Passive Solar House, built 2004, ongoing solar thermal experiments
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03 Sep 2013 07:44 PM
Posted By Kevin_in_Denver on 03 Sep 2013 11:00 AM
I agree with the SIP experts who have weighed in here: No, it's impractical to make your own SIPs. But I have a specific non-structural application for a set of insulated doors that I couldn't find commercially available, and it came down to this: Could I make a stiff, flat,light, stressed skin insulated panel door? Here's a link to what I did: http://www.youtube.com/edit?ns=1&o=U&video_id=9FABz-xEnQA

Link is bad, please try again...
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05 Sep 2013 12:24 AM
Here's that link:
http://youtu.be/9FABz-xEnQA
Passive Solar House, built 2004, ongoing solar thermal experiments
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05 Sep 2013 05:22 AM
Posted By Kevin_in_Denver on 05 Sep 2013 12:24 AM
Here's that link:
http://youtu.be/9FABz-xEnQA



Kevin,
I viewed your process and while it works for a simple door the adhesive did not have full contact with the skins/foam to provide good shear strength needed in SIP walls and roof
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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07 Sep 2013 03:02 AM
<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4 Okay, folks, here are the official instructions for making SIP's with Isoset.  It ain't rocket science.  Your best bet is building a vacuum tent the heavy vinyl-coated cloth.  I'll post more information about how to build one of those shortly.  Also, there are ways of applying the Isoset that don't involve purchasing a roll coater - these are very costly.  One option I've considered would be to use a Wagner power roller -- you'd have to do some experiments to figure out how many grams of Isoset the pump pumps per second.  If you started with a roller that's loaded with Isoset and you push the button to actuate the pump and then roll the roller in measured passes, you'd probably get a fairly uniform coating of Isoset. 

I am not suggesting that people make these to sell... If you live in an area where there are no building codes and you don't need to insure your structure, this might be just the ticket for you.


More on vacuum tent design but in the meantime, here you go....


ISOSET ADHESIVE LAMINATING GUIDE FOR STRUCTURAL PANELS

 

INTRODUCTION:  ISOSET is the leading adhesive for producing structural panels.  ISOSET WD3-A322 emulsion resin combined with ISOSET CX-47 crosslinker provides the east of production, rapid and dependable production rates, and long-term durability demanded by the structural panel industry.

 

TYPICAL MATERIALS USED:

 

            Cores:             Expanded or extruded polystyrene, polyurethane, and

                                    isocyanurate foams or honeycomb.

 

            Skins:              Waferboard, oriented strandboard (OSB), particleboard,

                                    gypsum or cementboard, and plywood.

 

            Facings:          Aluminum (backed or primed) and fiberglass reinforced plastic

                                    (FRP). 

 

NOTE:  The mechanism for curing ISOSET adhesives is for water from the glueline to be absorbed into one or both of the substrates being bonded during the pressing time and the period of time after the stack has been removed from the press and allowed to stand.  After the water is absorbed, the crosslinker reacts with the adhesive and crosslinks it.  Because of this requirement, direct foam to metal or foam to plastic laminations cannot be made with ISOSET adhesives because the foam is not porous enough to allow complete absorption of the water from the glueline.

 

SAFETY AND HANDLING:  Workers should wear proper gloves and eye protection while mixing the adhesive.  Gloves are also recommended for workers handling the adhesive coated panels.  Consult Ashland’s Material Safety Data Sheets for health, safety and handling information before using these products.


MIXING INFORMATION:  Add 16.7 parts by weight of ISOSET CX-47 crosslinker to 100 parts of ISOSET WD3-A322 resin emulsion.  Other ISOSET emulsions and crosslinkers are available.  Contact your Ashland representative for more information.

 

Mix slowly until the brown streaks caused by the addition of crosslinker disappear and a uniform tan color is obtained (3 minutes maximum).  Avoid overmixing.  Because of limited pot life, batch size should match the use rate.  Pot life is dependent on temperature; at 70°F a pot life of 120 minutes can be expected.  At temperatures above 90°F, guard against dry-out on the roll coater.


GLUE SPREADER:  The roll grooving for minimum squeeze-out should be 14 x ½ grooves/inch composite (Black Brothers Code A2137).  Wet rollers with water before placing glue on the spreader to facilitate cleanup.

 

SPREAD RATE:  To establish the spread rate, weigh a 1 Sq.Ft. piece of substrate.  Fill the bottom nip of the roll coater and run the test piece through the coater.  After the correct weight has been established, fill the top nip and run additional test pieces through until the correct weight for both sides is established.  Avoid rollback of the adhesive on the test piece, since this will give a false high reading for spread rate.

 

Recommended coating weights for the various composites are as follows:


 

Construction

 

Spread Rate

Coating Weight

1 Sq.Ft. Test Piece

Skins to Foam Core

·         Expanded Polystyrene 1 pcf

 

50-55 lbs/1000 ft2

 

23-25 grams

·         Isocyanurate 1.5 pcf

45-50 lbs/1000 ft2

21-23 grams

·         Extruded Polystyrene 2 pcf

45-50 lbs/1000 ft2

21-23 grams

·         Metal or FRP to Plywood 36 pcf

35-40 lbs/1000 ft2

16-18 grams

 


<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4

<!--[if gte mso 9]> Adjust rollers until the correct spread rate is obtained.  At warm temperatures, (>80°F), it will be necessary to increase spread rate to maintain a 25 minute stack time.  At cooler temperatures or shorter assembly times, lower spread rates are possible.

 

ASSEMBLY TIME (STACK TIME):  Once the laminating of the structural panels has started, the maximum time before placing the stack of panels under pressure is 30 minutes.  Allow 25 minutes to build the stack and 5 minutes to place the stack in the press and put it under pressure.  This applies to ambient temperatures of 65°F-75°F.  Higher temperatures will cause dry-out and require a higher spread rate or shorter assembly time.  When bonding OSB or waferboard, the panel temperature should be between 55°F and 80°F.  Keep the open assembly time, when the glueline is fully exposed to the air, below 1 minute.

 

PRESSURE:  The recommended amount of pressure needed to bond foam core panels is dependent on the type, density and thickness tolerance of the foam.  Some initial compression of the foam is desirable, however, compression set should be avoided.  As a general guide use:


<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4

<!--[if gte mso 9]>  

Core

Density

Pressure

Expanded Polystyrene

1.0 pcf

5-7 psi

Isocyanurate

1.5 pcf

12-14 psi

Extruded Polystyrene

2.0 pcf

35-40 psi

Plywood

36 pcf

40-50 psi

 

If the adhesive spread rate and pressure are correct, small beads of squeeze-out should be observed around the perimeter of each panel.

 

When using a vacuum bag press for the higher density foams, the tolerances of the foam must be good to obtain intimate contact all over the panel; maximum available pressure must be used.

 

LAMINATING FACE MATERIALS:  The recommended pressure for laminating FRP or metal to OSB or waferboard is 40 psi if done in a separate step.  It is possible to make foam core panels with FRP or metal to wood facings in one step if the foam core can withstand higher pressure.  Successful 5-ply laminations have been made in one step at 10 psi pressure.  Check the foam to be sure that 10 psi pressure does not initiate compression set.  The recommended press times for various core materials are as follows:

 

Foam Core

Press Time

Expanded Polystyrene

45 minutes

Isocyanurate

60 minutes

Extruded Polystyrene

60 minutes

 

Do not laminate at temperatures below 55°F, measured at the glueline.  Add 15 minutes to the above between 55°F and 60°F.

 

DRY-OUT:  If there is a break in the laminating operation for more than 30 minutes, such as during lunch, pour a small amount of water (4 oz.) over each roller to prevent dry-out.  Too much water will alter bond performance and cause delamination.  Do not allow adhesive to dry on the rollers.  If this occurs, cleanup is difficult.

 

When temperature exceeds 80°F, the cure cycle of the adhesive shortens.  Therefore, watch the adhesive on the rollers closely for premature dry-out.  Dry-out can be minimized by keeping the rollcoater nip full of adhesive.

 

PROCESSING INTERACTIONS:  Be aware of the interrelationship between spread rate,  moisture content of the skin, assembly time, temperature and press time.  For example, with a shorter assembly time (e.g. 15 min.), lower spread rates may be used.  Conversely, for longer assembly times, a higher spread rate may be required.  Higher moisture content skins may require lower spread rates and longer press times.  The absorbency of the substrates also influences these variables.  Contact your Ashland Technical Representative for specific processing parameters at your facility.


<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4

<!--[if gte mso 9]> CLEAN-UP:  Follow the clean-up procedures recommended by the rollcoater manufacturer.  Warm water (100°F)  makes clean-up easier.  The use of Thermaclean1 resin emulsifier helps reduce cleaning time.  Thoroughly clean rolls, troughs, and in and out feed areas.

Release coatings can facilitate clean-up of metal surfaces.  The use of Bates Boothcoating2 or Product No. 6273 has been successful

 

 

1Trademark, Cook Composites & Polymers, Heath, OH; Phone:  (614) 929-2866

2Trademark, U.S. Coatings Corporation, Buffalo, NY; Phone: (716) 833-9366

3Trademark, Associated Chemists, Portland, OR; Phone: (503) 659-1708

<!--[if gte mso 9]>
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Posted By the_postman on 07 Sep 2013 03:02 AM
<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4 Okay, folks, here are the official instructions for making SIP's with Isoset.  It ain't rocket science.  Your best bet is building a vacuum tent the heavy vinyl-coated cloth.  I'll post more information about how to build one of those shortly.  Also, there are ways of applying the Isoset that don't involve purchasing a roll coater - these are very costly.  One option I've considered would be to use a Wagner power roller -- you'd have to do some experiments to figure out how many grams of Isoset the pump pumps per second.  If you started with a roller that's loaded with Isoset and you push the button to actuate the pump and then roll the roller in measured passes, you'd probably get a fairly uniform coating of Isoset. 

I am not suggesting that people make these to sell... If you live in an area where there are no building codes and you don't need to insure your structure, this might be just the ticket for you.


More on vacuum tent design but in the meantime, here you go....


ISOSET ADHESIVE LAMINATING GUIDE FOR STRUCTURAL PANELS

 

INTRODUCTION:  ISOSET is the leading adhesive for producing structural panels.  ISOSET WD3-A322 emulsion resin combined with ISOSET CX-47 crosslinker provides the east of production, rapid and dependable production rates, and long-term durability demanded by the structural panel industry.

 

TYPICAL MATERIALS USED:

 

            Cores:             Expanded or extruded polystyrene, polyurethane, and

                                    isocyanurate foams or honeycomb.

 

            Skins:              Waferboard, oriented strandboard (OSB), particleboard,

                                    gypsum or cementboard, and plywood.

 

            Facings:          Aluminum (backed or primed) and fiberglass reinforced plastic

                                    (FRP). 

 

NOTE:  The mechanism for curing ISOSET adhesives is for water from the glueline to be absorbed into one or both of the substrates being bonded during the pressing time and the period of time after the stack has been removed from the press and allowed to stand.  After the water is absorbed, the crosslinker reacts with the adhesive and crosslinks it.  Because of this requirement, direct foam to metal or foam to plastic laminations cannot be made with ISOSET adhesives because the foam is not porous enough to allow complete absorption of the water from the glueline.

 

SAFETY AND HANDLING:  Workers should wear proper gloves and eye protection while mixing the adhesive.  Gloves are also recommended for workers handling the adhesive coated panels.  Consult Ashland’s Material Safety Data Sheets for health, safety and handling information before using these products.


MIXING INFORMATION:  Add 16.7 parts by weight of ISOSET CX-47 crosslinker to 100 parts of ISOSET WD3-A322 resin emulsion.  Other ISOSET emulsions and crosslinkers are available.  Contact your Ashland representative for more information.

 

Mix slowly until the brown streaks caused by the addition of crosslinker disappear and a uniform tan color is obtained (3 minutes maximum).  Avoid overmixing.  Because of limited pot life, batch size should match the use rate.  Pot life is dependent on temperature; at 70°F a pot life of 120 minutes can be expected.  At temperatures above 90°F, guard against dry-out on the roll coater.


GLUE SPREADER:  The roll grooving for minimum squeeze-out should be 14 x ½ grooves/inch composite (Black Brothers Code A2137).  Wet rollers with water before placing glue on the spreader to facilitate cleanup.

 

SPREAD RATE:  To establish the spread rate, weigh a 1 Sq.Ft. piece of substrate.  Fill the bottom nip of the roll coater and run the test piece through the coater.  After the correct weight has been established, fill the top nip and run additional test pieces through until the correct weight for both sides is established.  Avoid rollback of the adhesive on the test piece, since this will give a false high reading for spread rate.

 

Recommended coating weights for the various composites are as follows:


 

Construction

 

Spread Rate

Coating Weight

1 Sq.Ft. Test Piece

Skins to Foam Core

·         Expanded Polystyrene 1 pcf

 

50-55 lbs/1000 ft2

 

23-25 grams

·         Isocyanurate 1.5 pcf

45-50 lbs/1000 ft2

21-23 grams

·         Extruded Polystyrene 2 pcf

45-50 lbs/1000 ft2

21-23 grams

·         Metal or FRP to Plywood 36 pcf

35-40 lbs/1000 ft2

16-18 grams

 


<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4

<!--[if gte mso 9]> Adjust rollers until the correct spread rate is obtained.  At warm temperatures, (>80°F), it will be necessary to increase spread rate to maintain a 25 minute stack time.  At cooler temperatures or shorter assembly times, lower spread rates are possible.

 

ASSEMBLY TIME (STACK TIME):  Once the laminating of the structural panels has started, the maximum time before placing the stack of panels under pressure is 30 minutes.  Allow 25 minutes to build the stack and 5 minutes to place the stack in the press and put it under pressure.  This applies to ambient temperatures of 65°F-75°F.  Higher temperatures will cause dry-out and require a higher spread rate or shorter assembly time.  When bonding OSB or waferboard, the panel temperature should be between 55°F and 80°F.  Keep the open assembly time, when the glueline is fully exposed to the air, below 1 minute.

 

PRESSURE:  The recommended amount of pressure needed to bond foam core panels is dependent on the type, density and thickness tolerance of the foam.  Some initial compression of the foam is desirable, however, compression set should be avoided.  As a general guide use:


<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4

<!--[if gte mso 9]>  

Core

Density

Pressure

Expanded Polystyrene

1.0 pcf

5-7 psi

Isocyanurate

1.5 pcf

12-14 psi

Extruded Polystyrene

2.0 pcf

35-40 psi

Plywood

36 pcf

40-50 psi

 

If the adhesive spread rate and pressure are correct, small beads of squeeze-out should be observed around the perimeter of each panel.

 

When using a vacuum bag press for the higher density foams, the tolerances of the foam must be good to obtain intimate contact all over the panel; maximum available pressure must be used.

 

LAMINATING FACE MATERIALS:  The recommended pressure for laminating FRP or metal to OSB or waferboard is 40 psi if done in a separate step.  It is possible to make foam core panels with FRP or metal to wood facings in one step if the foam core can withstand higher pressure.  Successful 5-ply laminations have been made in one step at 10 psi pressure.  Check the foam to be sure that 10 psi pressure does not initiate compression set.  The recommended press times for various core materials are as follows:

 

Foam Core

Press Time

Expanded Polystyrene

45 minutes

Isocyanurate

60 minutes

Extruded Polystyrene

60 minutes

 

Do not laminate at temperatures below 55°F, measured at the glueline.  Add 15 minutes to the above between 55°F and 60°F.

 

DRY-OUT:  If there is a break in the laminating operation for more than 30 minutes, such as during lunch, pour a small amount of water (4 oz.) over each roller to prevent dry-out.  Too much water will alter bond performance and cause delamination.  Do not allow adhesive to dry on the rollers.  If this occurs, cleanup is difficult.

 

When temperature exceeds 80°F, the cure cycle of the adhesive shortens.  Therefore, watch the adhesive on the rollers closely for premature dry-out.  Dry-out can be minimized by keeping the rollcoater nip full of adhesive.

 

PROCESSING INTERACTIONS:  Be aware of the interrelationship between spread rate,  moisture content of the skin, assembly time, temperature and press time.  For example, with a shorter assembly time (e.g. 15 min.), lower spread rates may be used.  Conversely, for longer assembly times, a higher spread rate may be required.  Higher moisture content skins may require lower spread rates and longer press times.  The absorbency of the substrates also influences these variables.  Contact your Ashland Technical Representative for specific processing parameters at your facility.


<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4

<!--[if gte mso 9]> CLEAN-UP:  Follow the clean-up procedures recommended by the rollcoater manufacturer.  Warm water (100°F)  makes clean-up easier.  The use of Thermaclean1 resin emulsifier helps reduce cleaning time.  Thoroughly clean rolls, troughs, and in and out feed areas.

Release coatings can facilitate clean-up of metal surfaces.  The use of Bates Boothcoating2 or Product No. 6273 has been successful

 

 

1Trademark, Cook Composites & Polymers, Heath, OH; Phone:  (614) 929-2866

2Trademark, U.S. Coatings Corporation, Buffalo, NY; Phone: (716) 833-9366

3Trademark, Associated Chemists, Portland, OR; Phone: (503) 659-1708

<!--[if gte mso 9]>



You forgot to include the STAPLES "That was Easy " Button
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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07 Sep 2013 07:52 PM
Posted By the_postman on 07 Sep 2013 03:02 AM
<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4 I am not suggesting that people make these to sell... If you live in an area where there are no building codes and you don't need to insure your structure, this might be just the ticket for you.



So in other words, if you are building a structure that puts the safety of its occupants into jeopardy of death or serious injury due to a poorly built structure that is capable of collapsing upon its occupants, "this might be just the ticket for you."





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07 Dec 2013 03:13 AM
Greetings everyone, This is my first post. I just recently found this site during my research into sips. I am planning to build a house soon and I want to use other than conventional framing methods. This will be the second house I built. The first was using ICF's which I enjoyed using. I had never worked construction prior to building this house and at the time, the only real experience I had in carpentry was some remodeling work on the first house I bought. I designed the house, drew the plans even, and did about 90% of the construction of house myself while working full time. The house turned out great and passed all inspections with no problems. Here is where I am going with this post. Before starting this project I did a lot of research. I talked to a lot of people. I built the first ICF house in my county and I have a very difficult building department. Here is the thing. I did it when "professionals" told me I shouldn't. Now I am contemplating building with SIPS. This string has me considering building my own SIPS well not SIPS but insulated panels because I am using a log frame structure. I have learned alot from this discussion and will do more research before I decide to either build my own panels or buy from a manufacture. There are some people in the SIPs industry using this site to talk down to those considering building their own SIPs. I will never consider buying any products from you or your company you are a part of. Get off your high horse. Its you people that are giving the SIPS industry a bad name. Not us who are considering building something ourselves. Oh and heres news for you industry guys... I know there are people on this site that can DIY build better panels than you sell...Stop treating people like they are morons... Blayden
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07 Dec 2013 05:24 AM
Posted By Blayden on 07 Dec 2013 03:13 AM
Greetings everyone, This is my first post. I just recently found this site during my research into sips. I am planning to build a house soon and I want to use other than conventional framing methods. This will be the second house I built. The first was using ICF's which I enjoyed using. I had never worked construction prior to building this house and at the time, the only real experience I had in carpentry was some remodeling work on the first house I bought. I designed the house, drew the plans even, and did about 90% of the construction of house myself while working full time. The house turned out great and passed all inspections with no problems. Here is where I am going with this post. Before starting this project I did a lot of research. I talked to a lot of people. I built the first ICF house in my county and I have a very difficult building department. Here is the thing. I did it when "professionals" told me I shouldn't. Now I am contemplating building with SIPS. This string has me considering building my own SIPS well not SIPS but insulated panels because I am using a log frame structure. I have learned alot from this discussion and will do more research before I decide to either build my own panels or buy from a manufacture. There are some people in the SIPs industry using this site to talk down to those considering building their own SIPs. I will never consider buying any products from you or your company you are a part of. Get off your high horse. Its you people that are giving the SIPS industry a bad name. Not us who are considering building something ourselves. Oh and heres news for you industry guys... I know there are people on this site that can DIY build better panels than you sell...Stop treating people like they are morons... Blayden



Blayden, did you also build your own ICF blocks or did you buy them?
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07 Dec 2013 08:20 PM
No I didnt build my own ICF blocks. These blocks are very different than SIPs. They are not load bearing. The concrete is. The ones I used had the ABS web every 8" that held the block together for the concrete and acted as the nail plate for interior and exterior material. Much more complicated that the SIP. The issue I have with some people on this board is that they have become very defensive against the DIY er being able to build an effective SIP. This doesnt make sense to me. There has been mention of delamination of the OSB, the difficulty of cutting wiring channels, sealing panels to panels, and violation of building codes and what not. There is nothing being said that can not be addressed with some research and hard work. There is no perfect SIP out there. There is more than one way to build them. I even bet new ways to build them and new materials to use will be discovered in the near future. The DIYer has advanced and continue to advance every science that make up the foundation under every industry.

I like the idea of using SIPS. If I go with SIPs I intend to build them myself. Sheesh there is nothing being said here that makes it sound impossible, dangerous, or economical disadvantageous to give it a try. The house will be a combination of different building methods. A section has four walls 24 feet tall with two feet of foundation above level grade. It uses a log frame for structural support. I intend to make 8 panels 20 feet by 10 feet. In 4 of the panels there will be 3 windows 4' x 6'. I intend to build a panel that is about 11" thick. I like thick walls. My thoughts right now are building the panel using strips of foam block 10" thick with OSB on the outer sides and 2X material on all edges so the foam is fully enclosed. The OSB will be extended past the edges on the bottom so they may be nailed to the sill plate. The top edge OSB will end at the center of the 2x material. Basically I will be making boxes that will be assembled like a window buck. So basically a panel will consist of two long blocks 2' x 20' and 4 blocks 2'x6'. The blocks will be nailed and glued. These are upper panels and will not need channels for wires. Ok, this is just an idea right now. Its not perfect It will be explored and I will continue to research the concepts, revise the idea and in the end maybe even discard it. I really loved the ICF but, I hated the concrete pour. However, I still may go with the ICF. But, again, I love the idea of building my own insulated panels.


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07 Dec 2013 08:37 PM
sounds to me like you are building a prefabricated frame wall, not a SIP. Not really a revelation, prefab wall panels have been around since the 50's - 60's
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07 Dec 2013 08:44 PM
Posted By Blayden on 07 Dec 2013 08:20 PM
No I didnt build my own ICF blocks. These blocks are very different than SIPs. They are not load bearing. The concrete is. The ones I used had the ABS web every 8" that held the block together for the concrete and acted as the nail plate for interior and exterior material. Much more complicated that the SIP. The issue I have with some people on this board is that they have become very defensive against the DIY er being able to build an effective SIP. This doesnt make sense to me.

I like the idea of using SIPS. If I go with SIPs I intend to build them myself. Sheesh there is nothing being said here that makes it sound impossible, dangerous, or economical disadvantageous to give it a try.

But, again, I love the idea of building my own insulated panels.



Nobody is against DIY projects, that's why this board exists. I think you are overreacting a bit about the SIP issue. A true SIP is a STRUCTURAL panel that is meant to take on numerous forces that act upon it. A SIP is load bearing. Quality SIP manufacturers go through rigorous and expensive testing to make sure they meet codes and other standards. The factory manufactures the panels in a  high standard facility that is clean and goes through QC checks. A failed SIP can result in serious structural damage to the home and/or injury and death to the occupants. I believe that is why people are cautioning others before they try gluing OSB to EPS in their garage and erecting a building with it.

So I disagree with your statement that a homemade SIP is not dangerous. Quite the opposite is true.

If you want to do your own SIPs, then by all means do so. To claim the backyard SIP will be just as good as a factory tested and engineered SIP, I do not believe in your assessment.

 
Posted By Blayden on 07 Dec 2013 08:20 PM
 The issue I have with some people on this board is that they have become very defensive against the DIY er being able to build an effective SIP.


You have made TWO posts, so I find the above comment a little strange. How can you have a problem with this board when you have just signed on? This SIP thread is months old and the only one of its kind.

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07 Dec 2013 10:02 PM
Hello Lbear,
I have enjoyed this thread for years and I understand exactly what Blayden was saying about hostility in this tread of panel sellers protecting turf vs the rest of us that are interested in building our own SIPs.

Welcome Blayden,
This is one of the most interesting threads in DIY SIPs on the web. As you read from the beginning there are some great hints on how an individual might choose to go forward. Some f the important notes will be about how much glue to use, what type and ideas for spreading it evenly.
In my own rambling I have played with vacuum bagging as one press idea. I have toyed with using some of my I beam collection along with hydraulic rams for a press as well as using the forklift to set a couple concrete highway dividers on top of a sip stack.
All of these approaches are way slow compared to the production line of the manufactures but it is a good scale for me.

Since this thread was started I have become more interested in SCIPs (Structural Concrete Insulated Panels). These can be purchased from a few manufacturers around the US and are also built by DIYers.  In the simplest description, once you clip the home together you spray a layer of concrete on it. These structures are super energy efficient like SIPs  and properly engineered structures can also withstand an F5 Tornado.

Early on in this tread Alex Wade was mentioned. I have a large collection of books and I can say that his are some of the most valuable I have read for the owner builder.  Now that they are decades old, all can be had for a few bucks each on the used market.
Here is the treasure list:
Low Cost Energy-Efficient Shelter for the Owner and Builder   - Eugene Eccli
A Design and Construction Handbook for Energy-Saving Houses  - Alex Wade
30 Energy Efficient Houses you can build  - Alex Wade
Alex Wade's Guide to Affordable Houses  -  Alex Wade

Good luck with your second home. If you do build you own SIPs I hope you will share some pictures and progress reports here.

Best regards,
Nolan Scheid



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08 Dec 2013 12:30 AM
Thank you for your post Nolan. I will be about a year and a half or so before I start to physically build it. I am still in the planning phase. Lbear, I want to apologize for not always using the correct nomenclature. Maybe you can clear something up for me. What exactly is a SIP? Is it a piece of foam be it EPS or polyurethane or what not of the foam families sandwiched between to pieces of OSB or can it be a frame work of 2x material and by that I mean dimensioned stamped soft woods purchased at Home Depot, Lowes or where ever, that is insulated with the Pink Panther? I think I messed up in saying I was going to build the SIPS when I really meant an insulated box. I dont have problems with this board. I have problems with some of the things people have said on this board. I dont personally have a problem with you Lbear. I am sure you are a good guy and very knowledgeable. Oh and yes, this is my second post. but I figured out how to read all the post from the very beginning. Computers are amazing. This string started because a guy wanted some advice on building an insulated panel wait, I just noticed that this is the title of this string too... I believe that means we are talking about an insulated panel without much load bearing. This is what caught my attention because this is similar in what I want to do. It was the little letter S that seems to be causing the ruckus. Structure. Ok, as I understand it, a good SIP lets say 4' x 8' takes on as much load as a framed section of stick wood. Both use OSB on the outside with insulation in the middle and drywall on the interior. The SIP with OSB on both sides spreads its structural load to the foam core. OK, I get this. So really, pretty much anywhere that uses the international building codes gives me permission to use either one of these choices in the hypothetical house I am building. OH... these same codes dont say I have to be a certified general contractor in order to make this choice. That is pretty much up to my bank. Yes financing can dictate so many of our choices in how we build our dream house. So back to this "danger" thing. In spreading the load to the "structure" there are many forces to consider... right Lbear? Compression is one... right? Ok so if we press down on the panel... thats compression right? The foam and the OSB reacts. The OSB will want to bow either in or out. The foam will want to mushroom right and bow in out depending on thickness right? Im just talking about straight down compression no other directional forces. So to prevent the OSB from bowing we glue it to the foam. This helps the OSB and the foam to by spreading out the compression forces. Do I have the general concept right? What I am getting at is there are some DIY that will make a good SIP as good and better than some of the manufactures. Oh and there will be a DIY out there that will create some bad SIPs.. I know this. Just like I know manufactures can build both a good product and a bad one. Please help me understand why you think it is so dangerous for a DIY to make a SIP. Please use good data like real cases of failure, material limitations, problem areas, so on and so on. I am not asking for proprietary processes. I am asking for real life examples of why itss a danger.
One more point. hmmm. Do you understand why all the testing and engineering a manufacture does on its product before selling to the public? There are a couple of different reasons. One is to use the least amount of material and labor as possible in order to save money and the primary reason is to minimize its risk. A manufacture of a product used in residential or commercial construction can not insure itself if it sells a product to the public without testing. Why? Hmmm can you say lawsuit? The lawyers in this lawsuit that represent the insurance company and by proxy the manufacture want to be able to point their finger and anyone other than their client, the manufacture.

If I have offended you Lbear and Kavala Im sorry, I know with my tone I can easily offend. Just keep an open mind about what a DIY can do. I hope we can continue discussing the possibilities of making our own insulated panels and yes... SIPs too. I still think its very possible and safe to do so.. .I see one manufacture makes a SIP using the EPS block with 2x4s placed in channels on both sides of the block and glued into place. No OSB is used. The 2x4s take some of the structural load and act as nailers for siding and drywall. I like this idea. Its similar to my idea of making boxes with EPS using 2x material and OSB but uses much less material. Is this a dangerous panel? If so, could someone please point out potential problems.

Thanks everyone,

Blayden
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08 Dec 2013 12:48 AM
Hello Blayden,
I think you are on the right track. Some of the others may be able to tell you if there are differences between the Home Depot OSB and the OSB used in a Structural Insulated Panel.

It it ten degrees F. here in Eugene Oregon right now. We are in the middle of a wonderful DIY building experiment. My son has started building low pressure balloon forms for construction. Years ago Lloyd Turner the inventor of low pressure balloon forming told told me he had always dreamed of using his forms to make an Ice Dome. This evening we are doing it. The kids have been taking shifts spraying water on the dome. It is close to being self supporting.
I hope you are having as much fun building!

Best regards,
Nolan Scheid
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08 Dec 2013 03:43 AM
If you guys follow the directions I posted a few months ago, there is no reason why your panels would be any different than the ones you buy from the big guys. Go to this link and at page 60, you will find the technical specifications for the OSB you'll need. http://www.iccsafe.org/cs/codes/Documents/2007-08cycle/2007Supplement/IRC07S.pdf

And as I mentioned earlier, Ashland Chemical handles the epoxy you'll need to purchase. Seven PSI of pressure is required to laminate the skins to the EPS core and devising a vacuum tent is probably the most cost-effective method. Here is the link to procedure Ashland Chemical has developed for use with its Isoset product. Just follow the directions ;-)

http://www.ashland.com/Ashland/Static/Documents/APM/ISOSET%20CX-47%20tds.pdf

This is not a moisture cure polyurethane glue -- it's an older two-part formulation and it's much more forgiving than the polyurethane glues. If you use the right materials and the right procedures, there is no reason to believe that you will produce a product that is any different than the ones the big guys produce.
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08 Dec 2013 03:50 AM
For those who are interested in testing their panels, from a finished panel, perhaps from a window cut-out, cut a 4 sq. inch cross-section of the panel. Affix a big scale to one side of the panel cross-section and begin applying tension to pull the panel apart. The panel should not delaminate with any less than 64 PSI or 16 PSI per square inch (remember that your test piece is FOUR square inches... 4 X 16 = 64)

Have fun!
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08 Dec 2013 04:03 AM
Blayden, drywall is not a structural skin even when laminated to foam. Nolan, the difference with Home depot and SIP manfacturers are HD can only supply 4 x 8 sheets, mfgs. can do 24 foot long, not a problem if you don't need anything over 8 ft. long like a shed
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08 Dec 2013 11:26 AM
A fish scale capable of weighing a 100 lb fish would be perfect for this test -- determine how much tension is required to cause the test segment to delaminate.
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08 Dec 2013 12:00 PM
Posted By the_postman on 08 Dec 2013 11:26 AM
A fish scale capable of weighing a 100 lb fish would be perfect for this test -- determine how much tension is required to cause the test segment to delaminate.



It would not be sufficient for a properly laminated panel that should take at least 400 lbs. per sq. foot before it pulls off
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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08 Dec 2013 12:08 PM
I was proposing to test a four square inch section, not a 144 square inch section.
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08 Dec 2013 12:18 PM
Posted By the_postman on 08 Dec 2013 12:08 PM
I was proposing to test a four square inch section, not a 144 square inch section.



That would not be the proper ASTM test method
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08 Dec 2013 01:03 PM
George Tom, I dont think I ever said drywall was a structural member. Postman thanks for giving us some testing tips. Its fantastic. but I am confused on the delamination test. The area of the test piece is 16 square inches so wouldnt it be 4x4x16=256 but then I think to reach this figure, the delamination would have to start from the center of the test piece rather than the edge where the weight isnt as evenly distributed.


Kavala, where did you get that figure. When I convert the postman's psi to lpf,, I get about 192 lpf which is about half of what is recommended by you. According to the Structural Insulated Panel Association, there are no industry standards yet. However I do have add according to their website, they are working on developing industry standards of performance for SIPS.
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08 Dec 2013 01:34 PM
Posted By Blayden on 08 Dec 2013 01:03 PM
George Tom, I dont think I ever said drywall was a structural member. Postman thanks for giving us some testing tips. Its fantastic. but I am confused on the delamination test. The area of the test piece is 16 square inches so wouldnt it be 4x4x16=256 but then I think to reach this figure, the delamination would have to start from the center of the test piece rather than the edge where the weight isnt as evenly distributed.


Kavala, where did you get that figure. When I convert the postman's psi to lpf,, I get about 192 lpf which is about half of what is recommended by you. According to the Structural Insulated Panel Association, there are no industry standards yet. However I do have add according to their website, they are working on developing industry standards of performance for SIPS.



I base my criteria on our panel test data.
the standard is ASTM C297
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08 Dec 2013 04:05 PM
There are documented cases of poorly made SIPs that failed and the reason why they failed goes back to the manufacturing process. There are a few SIP companies that have come and gone and most of the time it's because they did not have good quality control. As far as DIY SIPs go, there would be no documentation available because nobody keeps a record of DIY SIPs.


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09 Dec 2013 01:27 PM
You make some good points Lbear. Pretty much all industries have experienced failures and we try to learn from them. Now the only type of SIP we have been talking about has been the type where EPS is sandwiched between OSB. The bond between the OSB and the EPS is very important and delamination can weaken it. I have been looking at different manufactures of SIPS. The type of SIP that I have been looking closer at is simply a block of EPS and 2x material in channels glued in place. No OSB is used. The panel draws alot of its structural strength from the 2x material. The panel is cut and handled just like OSB SIPs.

I think this other type of SIP would be easier to make than the OSB sandwiched type. Delamination would not be an issue since you're actually mechanically attaching the OSB to 2x material in the block. The following link takes you to a company in Portland Oregon who makes this type of SIP. I found other companies that make SIPS this way but they are not currently at my finger tips.


http://www.northwestfoam.com/applc-wall.htm Northwest Foam Products uses a foil faced EPS and not of the 2x material extends through the entire width of the panel which slows convective looping. Siding and dry wall are attached directly to the block eliminating the need for OSB.

We are about two years out from building our house but I am thinking I could build a few panels like this prior to the actual construction. The biggest plus for building a SIP this way is I can build these panels ahead of time and not worry about the county building inspector because he or she will be able to see the 2x material and how the EPS is being used in a fully completed wall.

If you build a OSB sandwiched EPS panel, the building inspector is going to want to see inside it. There is not a lot of trust when it comes to these people. This is the advantage a manufacture has. Their testing, manufacturing processes, and certifications assure the building inspector that everything inside a panel that is supposed to be there is there and there correctly. Otherwise, the building inspector would make you rip off a side of OSB so they can see inside the panel.

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09 Dec 2013 01:40 PM
Postman, It makes sense that anyone who cares about the SIP industry would be bothered by you doing this as a DIY. From your questions I don't think you have the knowledge to do this properly. Even if you had the knowledge it is still unlikely you could pull it off. When you screw it up you don't just impact yourself - you damage the industry. I'm an engineer, I know the codes and how to to calculate the stresses and some about the materials. I also DIY'd my own SIP house. I know enough that I would not have considered using DIY panels. I suggest you start with DIY pencils. Once you can make them cheaper and better than you can buy them in the store then consider moving on to panels.
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09 Dec 2013 01:55 PM
Blayden what you described in your last post is not a SIP at all
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09 Dec 2013 03:57 PM
Torben,
well put , tell us how you feel about the fish scale....
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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09 Dec 2013 04:41 PM
It's pretty obvious that guys who make SIPS for a living feel a little threatened when the exact procedures and methods are put out there for folks to see. These methods are those that were used by a manufacturer I was associated with. This is not rocket science. I'm hoping that folks will understand how simple these panels are to build and they might be interested in starting companies of their own. Under IRC regulations, they can build 4 X 8 panels all day long without the onerous testing requirements placed on builders of jumbos. A qualified engineer who is IRC approved can certify a production line of these panels and the monthly expense is not that much. My goal is to get people excited about making panels and providing them with the necessary resources, not about safeguarding the profits of the large manufacturers who'll stop at nothing to inhibit new competitors from entering the industry.
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09 Dec 2013 04:46 PM
I'm still trying to figure out how many fingers you would have left after cutting out a 2-inch by 2-inch square piece of SIP panel. Unless of course 4 square inches is actually measured as 4-inches by 4 inches. I guess that is just a pesky detail when you consider your only measuring the results of the roughness of your saw blade (as opposed to the strength of the glue).
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09 Dec 2013 04:49 PM
Posted By the_postman on 09 Dec 2013 04:41 PM
It's pretty obvious that guys who make SIPS for a living feel a little threatened when the exact procedures and methods are put out there for folks to see. These methods are those that were used by a manufacturer I was associated with. This is not rocket science. I'm hoping that folks will understand how simple these panels are to build and they might be interested in starting companies of their own. Under IRC regulations, they can build 4 X 8 panels all day long without the onerous testing requirements placed on builders of jumbos. A qualified engineer who is IRC approved can certify a production line of these panels and the monthly expense is not that much. My goal is to get people excited about making panels and providing them with the necessary resources, not about safeguarding the profits of the large manufacturers who'll stop at nothing to inhibit new competitors from entering the industry.


I am not sure who you are talking about? because so far you have only heard from SIP panel installers, not from any manufacturers, if your so "Gung - Ho" about doing it then just quit your jabber jawin and just build them, but so far all I have heard is talkin and no one doin the walkin!
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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09 Dec 2013 05:59 PM
Why are you in the SIP industry so protective? Its obvious that we have ruffled your delicate feathers and I cant understand why? Right now you have a SIPs association. Yes, this association defines a SIP as foam between two pieces of OSB. However, this association also states there are no industry standards. Why is that? The reality is that the SIPs industry is young. Its not well established yet. However, anyone can become a member of the association. Toben, Jelly Lbear, Kavala, are you guys members? With no standards, no one, not even this SIPs association is a real authority on SIPS.

Now we have Jelly telling me what I describe for a SIP is not a SIP. This is a very narrow view which in addition to the attitudes shown by industry insiders will hurt the advancement of the SIPs industry. Its like saying "there is only one way to make an airplane."

The name SIP, structural insulated panels gives me the idea that there is more than one way to make this panel. I think I will start a new association for the block of foam with 2x material and call it the "Better SIPS Association" better yet, maybe I will include all the different types of SIPs to include the OSB sandwich.

You guys really need to get over yourselves. You are really only talking about a piece of foam between 2 pieces of glued together scrap wood. Its not rocket science. You guys are actually insulted by the idea that someone outside the industry would actually consider making SIPs. OK Torben, you are an engineer and you know to calculate stresses and some about the material. Does that mean we dont? What are the minimum and maximum numbers for delamination? Where is the safe zone? You guys have done nothing to add to this conversation but throw out insults. Sheesh grow up. Pencils Torben. Really?

9 times out of 10 when a DIYer does something, he or she will overbuild it. Postman, I thank you for your posts. They are great.

The only thing we are really talking about is gluing the OSB to the EPS. You industry guys are saying that no one can do it other than a SIPs manufacturer. None of you have offered anything that can convince me that this is true.

Dont get me wrong... There are some people out there who should not attempt this. These are the same people who should not be building a house. However, what the people on this board are trying to do is do it right. We are exchanging ideas to help each other out because we want them to do it right. We want to do it right. I will not put my family in a house I dont feel is safe. I wouldnt want you to put your family in a house that was not safe. However, for the most part, people who are using this board and this string to get and share information have shown they want to do it right and will take the steps to do it right. Research is the first step in doing it right. This is the first step. Industry guys... the DIYer will not hurt your industry. People like you will and have. At least in my book.





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09 Dec 2013 07:51 PM
Posted By Blayden on 09 Dec 2013 05:59 PM
Why are you in the SIP industry so protective? Its obvious that we have ruffled your delicate feathers and I cant understand why? Right now you have a SIPs association. Yes, this association defines a SIP as foam between two pieces of OSB. However, this association also states there are no industry standards. Why is that? The reality is that the SIPs industry is young. Its not well established yet. However, anyone can become a member of the association. Toben, Jelly Lbear, Kavala, are you guys members? With no standards, no one, not even this SIPs association is a real authority on SIPS.

Now we have Jelly telling me what I describe for a SIP is not a SIP. This is a very narrow view which in addition to the attitudes shown by industry insiders will hurt the advancement of the SIPs industry. Its like saying "there is only one way to make an airplane."

The name SIP, structural insulated panels gives me the idea that there is more than one way to make this panel. I think I will start a new association for the block of foam with 2x material and call it the "Better SIPS Association" better yet, maybe I will include all the different types of SIPs to include the OSB sandwich.

You guys really need to get over yourselves. You are really only talking about a piece of foam between 2 pieces of glued together scrap wood. Its not rocket science. You guys are actually insulted by the idea that someone outside the industry would actually consider making SIPs. OK Torben, you are an engineer and you know to calculate stresses and some about the material. Does that mean we dont? What are the minimum and maximum numbers for delamination? Where is the safe zone? You guys have done nothing to add to this conversation but throw out insults. Sheesh grow up. Pencils Torben. Really?

Dont get me wrong... There are some people out there who should not attempt this. These are the same people who should not be building a house. However, what the people on this board are trying to do is do it right. We are exchanging ideas to help each other out because we want them to do it right. We want to do it right. I will not put my family in a house I dont feel is safe. I wouldnt want you to put your family in a house that was not safe. However, for the most part, people who are using this board and this string to get and share information have shown they want to do it right and will take the steps to do it right. Research is the first step in doing it right. This is the first step. Industry guys... the DIYer will not hurt your industry. People like you will and have. At least in my book.



Interesting that two people appear out of nowhere, both new posters, both with about 10 posts at this time. Both posters are talking up DIY SIPs and attacking those who question the safety and reliability of doing a DIY SIP. Are you here to sell us something? What are your intentions? I have my theories but it I believe you are here to solicit sales for SIP supplies.

You also stated, "Its obvious that we have ruffled your delicate feathers..." and who is "we"? Your business partner or your fake pseudo-forum name? Call me skeptical but two new members (Blayden & The_postman), both with eerily the same posting style & verbiage and both with 6-9 posts. I believe Blayden and The_Postman are the same person or they are your business partner/friend.

You are not being taken seriously because you are a rookie/newbie poster with less than 10 posts and the only posts you are making is about DIY SIPs. Right off the bat, post#1, you  attacked anyone questioning the safety and ability to build your own SIP. Your condescending words only deters from your credibility. With statements like, "we have ruffled your delicate feathers" from a newbie to people who have been on this forum for over 3+ years is not a good way to earn ones respect. BTW - I also have no affiliation with any SIP company.

Attacking Torben who is an engineer and attacking long-time forum members has just solidified your position and nobody will take you seriously anymore. You have set the tone and have made yourself out to be without credibility, egotistical, arrogant, condescending and fill in the blank. Time to go away.

Next time try and tone it down, especially as a newbie. Maybe when you create your other fake forum name and come back, you can try and have a better thread posting model than what you did here. A little humility goes a long way for a new member, if you want to be taken seriously as a inquisitive home builder. Telling people with 3,000+ posts that they are wrong and stupid by a newbie with 2 posts is not a way to earn credibility and respect.
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09 Dec 2013 09:45 PM
There are lots of guys building composite airplanes, cars, and boats.

All of which are several thousand times more complex and difficult that gluing a piece of foam between 2 sheets of osb.

There is nothing high tech or difficult about the process

To insinuate otherwise is ludicrous
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09 Dec 2013 09:58 PM
Lbear, if you follow this thread back to the beginning, you'll find that I helped initiate this conversation three or four years ago. The fact that you accuse me of having some sort of financial interest in this thread really says more about you than it does me. I am simply a devotee of SIPs and at one time, I looked into becoming a manufacturer because I believe that a stick-built house is a waste of time and money. I'll do anything I can to spread the gospel of SIPs and I'll share all that I learned along the way....at no charge (not everyone does stuff just for money)
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10 Dec 2013 01:12 AM
WOW feathers are ruffled.... I am a newbie to this forum. So, let me get this straight Lbear, number of posts equal credibility. Hmmm. I called it like I saw it. And, it seems like I definitely pushed your buttons. I dont feel bad about it. Nor do I worry about your respect. I didnt like the way you guys were talking to people who simply wanted information, real information. You guys came on here acting like bullies and little kids. I have asked a number of times for you industry guys to post real data about the dangers of a DIY SIP or even the dangers that were found testing their own products. None of you have posted anything to back up your positions. You just say DIY cant and should not do it. Sorry everyone Didnt mean to turn this thread into a pissing match.
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10 Dec 2013 02:55 AM
Lbear, my first post on this topic was 23 December 2007 so I'm not a newbie and I have no association with anyone on this thread though I remember Chris from the very beginning. No conspiracy or hidden agenda.....
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10 Dec 2013 08:29 AM
Blayden/Postman, There are a lot of us who participate on this site with no relation to SIPA. We have built or are building our SIP houses DIY. You get easily offended by others warning you that trying to assemble your own panels is a bad idea. Then you try to allege our warnings are based on our financial interests? You have managed to change my mind. You've convinced me that you should do DIY panels. Please post pictures.
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10 Dec 2013 08:47 AM
Torben, my point exactly, for years we have heard this conversation , but never seen a photo of someone actually doing it. I wish they would put up or shut up!
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10 Dec 2013 12:51 PM
I don’t have a horse in this race as I have little experience fabricating DIY SIPs. I also believe ICF to be longer lasting and therefore a more green approach for building construction. However, it would be nice to see more actual details on how SIPs could be affordably and properly DIY fabricated. It would be even nicer to see photos of DIY SIPs actually being used to construct a building that passes code/inspection with the GC or builder's company sign in the foreground.

I will say that research has clearly shown that there is little correlation between forum post count and actual knowledge or competence. Some forums turn off this metric for just this reason. You don’t have to look very far in this forum to see that there are a couple individuals who hardly ever post correctly to anything but still always post gibberish to everything, apparently so as to get their post count high in an attempt to acquire some credibility or respect where little has been earned/deserved. I personally have much more respect for a well written response that simply correctly answers or properly addresses the OP question or situation…even if it is the first post from a so called “newbie”. If one is totally ignorant of a thread subject and doesn’t even have the basic skills to compose a written response, one should seriously consider not posting to that thread and perhaps consider finding another hobby too.

BTW, nice photo Chris and entirely appropriate
Borst Engineering & Construction LLC - Competence, Integrity and Professionalism are integral to all that we do!
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10 Dec 2013 01:18 PM
Here are the specifications for the foam cores:

• EPS foam shall be virgin B bead, one-pound density (0.95 minimum), aged board.

• Cuts shall be square and parallel.

• Standard dimensions and tolerances:

• 3 11/16” (+1/16”, -0”) X 48 ⅛” (+/- 1/16”) X 192 ⅜” (+/- 1/16”)
• 5 11/16” (+1/16”, -0”) X 48 ⅛” (+/- 1/16”) X 192 ⅜” (+/- 1/16”)
• 7 7/16” (+1/16”, -0”) X 48 ⅛” (+/- 1/16”) X 192 ⅜” (+/- 1/16”)
• 9 7/16” (+1/16”, -0”) X 48 ⅛” (+/- 1/16”) X 192 ⅜” (+/- 1/16”)
• 11 7/16” (+1/16”, -0”) X 48 ⅛” (+/- 1/16”) X 192 ⅜” (+/- 1/16”)

• Shall have third party inspection stamps (UL or RADCO) on at least one 48 ⅛” end of every sheet.

• EPS foam shall be treated for resistance to fire, mold.

• EPS foam shall be free of dips, hollows and steps.

• EPS foam shall be shipped in a closed van, stacked and not wrapped with protection from floor debris.
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10 Dec 2013 07:31 PM
With regard to DIY. It is clear that almost everything that we use in the construction trade was at one time home made or if you prefer, shop made.
I remember roof truss made in the shop or out on a level lawn with plywood gussets. It was a great day when gang press gussets and software that could account for every span and joint in seconds came along.
cmu started of as home made just as brick did.
The first ICF's were just sheet foam with ties.
Many of these initial offerings had to be field engineered and stamped as such.
Nobody went out and built a multi million dollar plant to produce their first proto type. It was home built so to speak. So really, there is no reason why someone can't build their own sips. The question is "can you do it fast or cheaper and better then the multi million dollar factory?
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10 Dec 2013 08:20 PM
Hey Blayden I'm just trying to look out for you man. A SIP is a structural panel with certain capabilities. One can't just glue some foam and strand board together. But hey if you could do it DIY safely and legally for less than a manufacturer can, post pics! You're not talking to the establishment here - I was a DIY installer.
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11 Dec 2013 12:00 AM
Jelly, I appreciate it. I really do. I understand the concept. Like Postman has posted, it takes special glue, some special preparations (well not to many), and careful work to put together a SIP. Ok, lets move on. I admit I can kick a dead horse so many times that it will get up and run away.

I have read back to the beginning of this string and along the way, we got side tracked with SIPs. This post was originally about making insulated panels that were not load bearing. Any thoughts about a good design for a non load bearing insulated panel?
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27 Dec 2013 11:58 AM
What about block of Styrofoam with pre-cut recesses for studs and top / bottom plates so it slides down into framing before sheathing?
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27 Dec 2013 08:08 PM
Posted By [email protected] on 27 Dec 2013 11:58 AM
What about block of Styrofoam with pre-cut recesses for studs and top / bottom plates so it slides down into framing before sheathing?



Yea, thats not a SIP, its a common frame wall
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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28 Jan 2014 12:25 AM
I registered simply to comment on this thread.

Some background: I have been making things out of composites since the 1980's, both as a professional and as a hobby. I have built ocean going yachts, racing one design boats, amateur & professional race cars - quite a lot of it out of foam cored laminates in wood, fiberglass & carbon fiber. Sometimes with access to advanced pre-pregs & autoclaves, sometimes in a back yard with a paintbrush.

While I respect the experience of people who are doing SIPs commercially, I think krom is absolutely right in saying that DIY SIPs are nothing special and easily buildable by DIYers. The reality is that loads on SIPs in buildings are nothing compared to the loads put on composites in marine & aerospace environments and plenty of 'amateurs' successfully build both boats & plans.

It's important to keep in mind that most 'professionals' were once amateurs and they became professionals through experience, learning and jumping through hoops. The people on this thread are doing just that and they should be applauded for that. If you don't want to teach, that's fine, but there is no reason to be condescending. Building codes & industry standards did not come out of a vacuum, they came out people experimenting and historical knowledge, and then sharing what they found - exactly what the DIYers are doing.

So, if you are building your own SIPs, good for you. The professionals have pointed out some valuable things

- Test your products (to standards if available)
- Document your process
- Make things repeatable
- Have some sort of QA process

Doing these things would give you most of what a 'professional' operation would get you. That said, it would still probably be cheaper to buy them off the shelf, regardless of the manufacturers margins...

There is a lot of DIY work that is hugely valuable and widely used in industry - most modern PLCs have, at the core, software built by a DIY, volunteer community, and that's what runs your professional SIP factories. Never mind almost all of the internet and quite a lot of the software in your car.
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28 Jan 2014 06:56 AM
ckm,
it's doable, but for years we have heard these guys talking about it
I wish somebody would actually just do it and report back to the forum along with photos of the process and the erected shell,
but so far all we hear are ..........crickets
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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10 Mar 2014 11:30 PM
Hi new guy here.. Planning on making my own ISP as well. The size and use of my project does not warrant the cost of a manufactured panel. I would like to to see the discussion continue as I have a few question myself.. IE For the DIY does a vapor barrier become a consideration?

I know Chris and a few others have a different agenda but unless u can provide some truly useful information can u please refrain from your totally biased comments .


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10 Mar 2014 11:48 PM
Posted By Tuokko on 10 Mar 2014 11:30 PM
Hi new guy here.. Planning on making my own ISP as well. The size and use of my project does not warrant the cost of a manufactured panel. I would like to to see the discussion continue as I have a few question myself.. IE For the DIY does a vapor barrier become a consideration?

I know Chris and a few others have a different agenda but unless u can provide some truly useful information can u please refrain from your totally biased comments .



Not exactly a nice way to start your first post. Chris is the steel SIP expert here and has been in the SIP industry for a long. His comments are not "biased" and his information is useful because he knows the ins and outs of what it takes to make a proper SIP.


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11 Mar 2014 12:33 AM
Just going with the general feeling of the post. U must have misread my post I am making a IP .. Not a SIP do u know the difference? I have not seen any useful information. Just that unless u r a certified engineer the DYI does not have a chance.
Again Can you provide any useful information .
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11 Mar 2014 03:43 PM
I've posted this before, but it could be what you are looking for:
https://www.youtube.com/watch?v=9FABz-xEnQA
Passive Solar House, built 2004, ongoing solar thermal experiments
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12 Mar 2014 10:35 AM
This is one of my favorite Mark Twain quotes: "It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so." Confidence/arrogance and inexperience are not a very good combination for a DIYer.
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12 Mar 2014 10:30 PM
For non structural panels, I'd consider making your own SCIP like panel from EPS, wire mesh and stucco.
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12 Mar 2014 10:53 PM
With shotcrete and properly planned steel this becomes more like an inside-out ICF. From a durability standpoint I would say better than ICF. I would be interested in doing something like this in the future.
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14 Mar 2014 06:40 PM
mikett744 can you provide any useful information? Maybe you misread your own post. IP or ISP, which is it?
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14 Mar 2014 07:16 PM
You must be one of that ANTI DIY guys. As you are more concerned with my typing and not the topic on this forum..
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15 Mar 2014 10:27 AM
Just going with the general feeling of your post.
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15 Mar 2014 07:08 PM
Ok Ok Please disregard my previous posts. I am interested in doing a small project using this technique and would like to see the discussion continue. Any information on a successful job would be appreciated. Thanks
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11 Feb 2015 06:23 PM
I started reading this thread and I was excited, thinking some good information was posted in one of the 7 pages. needless to say I was very disappointed when I skipped to the last page. Now normally I would just ignore this thread and go find the information I need elsewhere BUT this is one of the only threads I have found in the subject. I think there is still potential here so here is a video I found, maybe it gets the thread going again. https://www.youtube.com/watch?v=3O_NMC8wmW8
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11 Feb 2015 06:40 PM
Falcon Flight , a continous line SIP manufacturing process: https://www.youtube.com/watch?v=pCfYSOOG4uY
Chris Kavala<br>[email protected]<br>1-877-321-SIPS<br />
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12 Feb 2015 11:20 AM
cmkavala

the video is interesting but I dont want to mass produce SIPs. Going by the video I posted, it seems achievable as a DIYer. does anyone know if the video omitted any critical steps?
https://www.youtube.com/watch?v=3O_NMC8wmW8
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12 Feb 2015 01:23 PM
If that was a polyurethane glue, and it probably was, they omitted an important step. A fine must of water must be sprayed on one side of the mating surfaces to activate the glue. When I get a chance, I'll post the tech sheet for one form of polyurethane adhesive that is popular among SIPS manufacturers. For the do-it-yourselfer, Isoset is a better way to go. More forgiving. Please go back through this thread to re-examine the fabrication instructions I posted involving Isoset. The glue extruder used in this video is quite expensive and it operates under high pressure. The panel press shown there probably runs north of $50K. Vacuum presses are more feasible for someone who is just starting out. You are shooting for a uniform pressure of about 7 pounds per square inch clear across the panel as the adhesive cures.
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18 Aug 2015 05:16 PM
Wow, what read! It got a bit too dramatic for my blood for the last couple pages, but hopefully that nonsense can be over (it has been a few years now..). I took a 'short' break from painting and it turned into an eye strain...

Anyhow, I came to this forum researching DIY SIPS, or moreover, just how SIPS are manufactured. Seeing only a few videos posted from manufacturers (the two from the few posts previous to this), I was curious if there were specifics given in the 'literature' of the forum. I've found a lot of decent insight. Impressive that a)people have come up with so many ideas, and b) not many have posted on results. I hope to change that when I get home from my stint overseas. I have a design to create SIP kits that can be shipped to the average DIY (not the avid DIY) and installed via a short video and instruction packet. The scope of my buildings are utility structures; I have no desire to build truly habitable structures with SIPS; that's what ICFs are for, haha.

The few questions I have are these:

I plan to use CCSPF (well, technically a slow-rise pourable version, not sprayed) inside a dimensioned sandwich...
...what are ideas for running chases for electrical?
My current ideas are just a) conduit placed prior to filling, or... that's all I got. Anyone have any ideas that are simpler/ cheaper than conduit? EMT isnt much, but I was curious if anyone knew of a better way? (PEX may even work for its curvability and ease of position... just drill holes, zip tie it in and pour the foam....?) Curious to what others think.

Anyone know how MURUS brand does their tongue and groove? I plan to simplify it by not having a foam tonge and groove system, much less cams, but was curious if anyone knew how they formed that. (Near as I can figure Polyethylene mold must've been used; CCPF sticks to everything else...)

I heard mention a few pages back about differences in OSB 1 and 2. I've never heard of such differentiation and was curious to know more about it; particularly in regards to SIPS.

Lastly, has anyone heard of ready to assemble structures using SIPS? Now it sounds like I'm just talking about regular SIPS, but I mean with siding already attached, or metal roofing already applied, so the system just needs bolted together at the seams... Any familiarity or suggestions?

I don't want to give away too much, (but I've not seen great result posting anyhow, so it probably doesn't matter too much...) but my hope is to make only about 5 sizes of panels (windows, doors, walls, roof, roof), and then make utility buildings that are a kit of several kinds. My goal is to be able to sell a kit for a 12x16 shed for $3000 or so. Curious to peoples thoughts on the matter of manufacturability, as well as marketability.

Thank you for your time. Have a great day!

** A little about me: I'm studying to be a Mechanical Engineer (about 2 years left of undergraduate to go before I go on to a Master's program). I have built custom homes for about 8 years, most of the time focusing on ICF systems. I have installed a third story using SIPS once. I specialized in insulation technologies as well as radiant heat systems (I designed and installed the manifolds for the systems). I love woodworking, and construction. I invent new methods for construction as well as power tools. My favorite website is woodgears.ca. I like how he thinks.
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21 Sep 2015 06:26 PM
I'm building a tiny house (aka cabin on a trailer bed) at the moment to withstand the northern coastal climates. SIPs is the way to go due to low chance of mold and high insulation value. I'm framing up 2x6" floor and ceiling, and 2x4" walls. I have ordered 4x8' sheets of EPS type 2 and the isoset CX-47 from Ashland based on the postman's advice. I get the 5.5" sheets for $57 Canadian each (I'm remote, includes shipping and takes two weeks to get here) and the 3.5" for $49 each. I'm framing up the walls with four feet studs and have jacks for the windows (they are four feet width). I'm cutting the EPS sheets with a reciprocating saw and laying them into the cavities of my wall, glueing the ends to the studs and making them flush. My plan is to then coat some birch plywood with the glue and lay it onto the wall that is level on the ground, then lay some heavy posts on it to get my 7 psi. I will then lift it up into position with the other walls, and the birch ply will be my interior finished. I plan to put on some cedar 1" siding that will further strengthen the wall. My floor has 5/8" plywood with 3/4" maple hardwood on it above the EPS, and under is some old tin for protection on top of the metal trailer frame. Roof has the birch ply on the interior and tin on the exterior, no OSB in any of this. All electrical will be run on top of the birch ply with conduits so that I can have a continuous and air-tight envelope.

I costed it out with new supplies and I'm looking at about $170-200 Canadian per 4x8' with tin. I'm willing to pay the extra for light-weight and high insulation. I have been going from building site to building site and bought their left-over supplies for 50 cents on the dollar, so I'm more at $125 per panel. Tiny houses don't follow building code because they are on a trailer. It's like a fancy shed on wheels. Excluding the trailer, I should be at about $2,500 when all is said and told (DIY labour is free), but for a kit I'd gladly pay $5,000 for the envelope. The local SIP supplier quoted $8,000-10,000, but I'd have to assemble them myself. It's 18'x8.5' with a pitched roof going from 8' to 12'.

I hope that helps.
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22 Sep 2015 02:32 PM
Note that to be a SIP, the siding sheets need to be fully glued to the flat sides of the foam. Otherwise you just have a foam filled stud wall.
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17 Apr 2016 11:10 PM
thanks for sharing
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11 May 2017 10:08 PM
Sorry double post so I'm adding something witty here, well maybe not lol.
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11 May 2017 10:08 PM
Yeah I'm a new poster but hey I've built panels and used them. I went a whole other route doing what in the small camper world was do sandwich construction/ala SIP for people that get so wrapped around titles and terminology. I have built 3 campers using this method and have had 2 go from Texas to east/west seaboard (1 each direction) and back and they held together bouncing and jousting down the road with no failures at all.

So for what I used, XPS from the box stores 3/4" thick within a simple pine 1x2 framing laid flat for walls and vertical for the roof (double foam in the roof due to 1.5" high vs 3/4" laid flat. Now here's the secret to all this and engineering is on my side. The strength isn't derived from the overall components but the amount of glue surface that is present and the sheer tensile strength of the glue. So with this simple structure which equates to a little over an inch thick after gluing the skins gives a strength of around 600 psi in a very thin format. I simply used 5mm luan skins with 3m 30DNF water based contact cement and it worked and I can walk on the roof of the campers with very little deflection at 200 lbs of lovable me. Water based glue so there's my green and look at the much less amount of materials needed to build such a strong structure.

Sometimes you gotta look around and think outside the box. I skinned the outer surface with FRP on the first (heavy hated it but its durable as heck) and aluminum on the other 2 same contact cement doing a vapor barrier and adhering to the luan.

I haven't built any in a while but will do another eventually but now I'm lining my sites on same type of construction in a tiny house build. If you wanna look at my campers do a search for microcampers.

Yes you can do this and not implode the world but before you do it test and do research on what products you choose to try out.

Structures also gain strength just from becoming closed boxes with all sides attached. I can't believe the pricing on these commercial panels, it's ridiculous and old traditional building codes and mindsets need to seriously change and move forward but the construction industry and its standards are more about making money and licensing than safety anymore jmho.

Yes this has been a vicious thread and I hope this might shed a little hope for it going forward.

To get an idea where the torsion and glue strengths scale look at a video on youtube for a person using just foam and putting weight on it and getting the failure point and then simply taking paper and gluing across both surfaces and testing again adds crazy strength from elmer's glue and paper.

Glue and foam usually don't jive and there aren't a lot of them that won't just melt it because they are petroleum based same as the foam is.
Steve
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14 May 2017 03:13 PM
It looks like I will have to take that route of building my own panels as well I have been trying to get access to steel sip panels and always gets routed to middle man who doesn't offer any other value added services other than selling the panels to you from manufacturer. If I am shopping for tracks , fasteners and joists why would I need a middle man ? I am looking any manufacturer from whom I can buy the SIPs directly.


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