jboysen
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Posts:9
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| 07/05/2008 2:22 PM |
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| What's an average price difference for 8.25" sips (~R30) with highhat furring VS. 2x6 stud construction with 2" of polyiso foam sheathing and sprayfoam insulation (~R30)? |
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egouin
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Posts:21
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| 07/05/2008 3:22 PM |
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I am building somehting you may be interested in... A SIP modular hybrid. We will have R40 SIP walls with the constructionand cost efficiency of modular building. I can only say that the cost versus a sipe built SIP house is a "no brainer"!!!
Feel free to contact me.
Ed
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vhehn
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Basic Member
Posts:105
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| 07/09/2008 8:46 AM |
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i just built two houses pretty much identical. one was stick frame with foam sheathing. the other 6in sip walls and conventional roof.
i figure i saved less than $5000 with the stick frame. the problem is that even with spray in poly foam and
using airtight drywall the stick house is not as airtight as the sip house. the sip house is a much better product.
you get tighter walls,straighter walls,faster construction and its much easier to accomplish airtight goals.
after doing this experiment i dont think i would stick build again. the savings just arent enough for what you lose.
i have come back to the conclusion that sips are the best all around building product available. icfs have their place as
a safety factor in some areas but they are much more expensive than sips around here.
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marciaB
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Posts:2
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| 07/10/2008 9:00 AM |
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| I am an architect designing a very large, complicated home. My builder is interested in SIPS but we are concerned that the cost will not be justified and it just won't work. The alternative approach would be 2x6 w/foam sheathing and spray foam. I visited a net-zero, LEED Platinum house and the builder used SIPS on the main floor and the alternative system on the 2nd. He said he would not use SIPS again because the building department made him add so much additional framing (high wind area). Are these homes built with SIPS complicated structures or basic boxes? Anyone else have experience with these to systems? |
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vhehn
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Posts:105
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| 07/10/2008 9:13 AM |
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| i dont understand that thinking. you get your sheer strength from the wall sheathing. with stick built you get one sheet on the outside. with sips you get 2 sheets. one inside and one outside. sips have double the shear strength that stickbuilt has. |
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cmkavala
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Posts:862
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| 07/10/2008 10:06 AM |
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Posted By marciaB on 07/10/2008 9:00 AM
I am an architect designing a very large, complicated home. My builder is interested in SIPS but we are concerned that the cost will not be justified and it just won't work. The alternative approach would be 2x6 w/foam sheathing and spray foam. I visited a net-zero, LEED Platinum house and the builder used SIPS on the main floor and the alternative system on the 2nd. He said he would not use SIPS again because the building department made him add so much additional framing (high wind area). Are these homes built with SIPS complicated structures or basic boxes? Anyone else have experience with these to systems? Your builder needs to get out of the stone ages .......SIPs are utilized for very complicated designs and are well received by building departmants, we build in hurricane zones every day
This is not a box..................
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Chris Kavala
chris@southernsips.com
1-877-321-SIPS |
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rnortman
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Posts:97
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| 07/10/2008 11:38 AM |
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Chris, that picture is a bit fuzzy, but it looks more like ICF than SIP to me. Is it a SIP roof on ICF walls?
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marciaB
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Posts:2
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| 07/10/2008 3:21 PM |
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The net-zero home I visited is in Boulder, Colorado, a pretty cutting edge place for green building. I was also surprised that the building department made them add more framing - isn't this system suposed to come engineered? The county where my house is going has only had a couple of SIPS homes, so I'm not sure how they will handle it.
Are there windows around the back of this home in the picture? I have big window walls to deal with because of the views from the lot. And, although there are a lot of angles, it does look like the second floor mostly stacks over the first. Mine is significantly more complex, so when does the complexity make SIPS a bad choice?
My builder is using a "green" consultant to help him. He built his home office out of SIPS and was very happy. But it is one large open room, and they put it together off-site before building it on his site. I don't think that's possible with my 6600 s.f. monster.
BTW, I hardly consider someone whose never built with SIPS in the dark ages. If it were that common, we'd be seeing more than two in one of Colorado's most populous counties. I'm in a tough spot, because if I recommend this system and it becomes a nightmare, he will never use it (or me) again.
Marcia |
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cmkavala
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Posts:862
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| 07/10/2008 3:51 PM |
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Posted By rnortman on 07/10/2008 11:38 AM
Chris, that picture is a bit fuzzy, but it looks more like ICF than SIP to me. Is it a SIP roof on ICF walls?
rnortman;
is not fuzzy its steel sip over redirion frame, with a synthetic stone glued directly to the skin, view progress photos at..
http://southernsips.com/driftwood.html
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Chris Kavala
chris@southernsips.com
1-877-321-SIPS |
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PanelCrafters
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Posts:1343
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| 07/11/2008 6:46 AM |
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Posted By marciaB on 07/10/2008 3:21 PM
The net-zero home I visited is in Boulder, Colorado, a pretty cutting edge place for green building. I was also surprised that the building department made them add more framing - isn't this system suposed to come engineered? Was this the Solar Harvest house?
...Mine is significantly more complex, so when does the complexity make SIPS a bad choice? Marcia,
Can you post a link to the drawings of this house? Then you will be able to get a few opinions. |
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....jc
If you're not building with OSB SIPS(or ICF's), why are you building? |
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