Texas home built with 10" x 40 ft. long SIP roof on ICF walls,



Look at the 12 foot cantilever!

Posted By cmkavala on 25 Sep 2013 09:44 PM

Texas home built with 10" x 40 ft. long SIP roof on ICF walls,

Look at the 12 foot cantilever!

So that SIP is supported in 3 spots? The north wall, the ridge beam, and the south wall?

Will they leave it with a 12 foot unsupported cantilever or will supports go in at a later time?

What was the reasoning behind that overhang? A covered porch?

I believe an ICF wall and a SIP roof is a good match and that is my strategy for my future home.

ICF walls with a SIP roof, a perfect couple.


Chris, do you have any pics of the SIP attachment at the ICF wall top plates? I've seen them rip 4x6 lumber according to the roof pitch and then lay the SIP over that and screw it down. Was the lumber treated?

Posted By Lbear on 25 Sep 2013 10:48 PM
I believe an ICF wall and a SIP roof is a good match and that is my strategy for my future home.

ICF walls with a SIP roof, a perfect couple.


Chris, do you have any pics of the SIP attachment at the ICF wall top plates? I've seen them rip 4x6 lumber according to the roof pitch and then lay the SIP over that and screw it down. Was the lumber treated?

Lbear,
the photos were passed along from the owner/builder, I understand that they were attached to some type of PVC plate

Posted By Lbear on 25 Sep 2013 10:45 PM

Posted By cmkavala on 25 Sep 2013 09:44 PM

Texas home built with 10" x 40 ft. long SIP roof on ICF walls,

Look at the 12 foot cantilever!

So that SIP is supported in 3 spots? The north wall, the ridge beam, and the south wall?

Will they leave it with a 12 foot unsupported cantilever or will supports go in at a later time?

What was the reasoning behind that overhang? A covered porch?

Yes 3 point bearing and porch roof will be suported later with beam/posts
I thought it was a good demonstration of the rigidity of the panels

....

..
the owner intends to tape the seamsand leave panels bare

received this email message this morning from the customer:

"I'm not just your customer, I'm your unsolicited testimonial. I'd be happy to show my roof to any potential customers, because I'm proud of it."
"This stuff snapped together in a highly dimensional way so that it came out even across 73ft. Who ever heard of installing a complete roof in 2 days? I'll complete the remainder of the screw-down and tape-down myself."
House currently being built in Spring , Texas

I have a few questions about SIPs for roofs as I am heavily considering them. I've heard a few things here and there and would like to get some concrete answers about using SIPs as a roof. 1. I've heard that SIPs are not necessarily effective in complicated roof systems such as one with multiple hips and valleys. Is this true, and if so is it the SIPs themselves or just the added cost for labor that makes it less feasible? 2. I've also heard that SIPs are better from. . . .I believe an installation standpoint. . . .if they are installed at a certain pitch. Is this also true and if so what is the ideal pitch at which to install them?

Sorry for the crappy format; it looked nice when I typed it with spaces and whatnot.

Posted By HVAC-Engineer on 26 Sep 2013 09:27 AM
I have a few questions about SIPs for roofs as I am heavily considering them. I've heard a few things here and there and would like to get some concrete answers about using SIPs as a roof. 1. I've heard that SIPs are not necessarily effective in complicated roof systems such as one with multiple hips and valleys. Is this true, and if so is it the SIPs themselves or just the added cost for labor that makes it less feasible? 2. I've also heard that SIPs are better from. . . .I believe an installation standpoint. . . .if they are installed at a certain pitch. Is this also true and if so what is the ideal pitch at which to install them?

HVAC- Engineer,
1.we have done almost every conceivable roof design with SIPs, as with any system the more complicated the design the harder it is to do, it makes no difference wether it is SIP or frame
2. There is no ideal pitch with SIP construction, again: if it is a 14/ 12 instead of a 4/12 it is more difficult , SIPs or otherwise

OK great that's good to know. I'm really liking the idea of steel SIPs on my ICF walls. As Dana1 always says, you can get much better comfort out of an efficient envelope and less efficient equipment than you can vice versa. That's what my goal is anyway.