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structural insulated panels racefan0309 05-28-2007
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Posted by abarr on May 28, 2007, 11:59 pm
You might consider Insulated Concrete Forms as an alternative. IFCs don't
rot, grow mildew or mold and they will withstand winds of up to 250 miles
per hour. They will cost about the same as SIPs, and the wall will perform
more like R50 than the R38 you get from most SIPs I've seen.

For more information go to www.nudura.com or www.futurestone.com

abarr


> Does anyone have any opinions, good or bad, or general advice about
> using structural insulated panels (sips) to frame up a house? The
> ones I have been reading about have 3 or 3 1/2" polyurethane foam
> bonded to 7/16" osb on each side.
>



AppliancePartsPros.com, Inc.
Posted by Matt Whiting on May 29, 2007, 7:09 am
abarr wrote:
> You might consider Insulated Concrete Forms as an alternative. IFCs don't
> rot, grow mildew or mold and they will withstand winds of up to 250 miles
> per hour. They will cost about the same as SIPs, and the wall will perform
> more like R50 than the R38 you get from most SIPs I've seen.

Only if you go to a much greater wall thickness. Inch for inch, a SIP
will outperform ICFs (never heard of IFC) in almost any circumstance
from a thermal perspective. There may be cases where the greater
thermal mass of the ICF walls has an advantage.

SIPs can also be used for the roof, whereas, ICFs cannot.

Matt

Posted by Barold on May 29, 2007, 7:38 am
On May 28, 1:11 pm, racefan0...@yahoo.com wrote:
> Does anyone have any opinions, good or bad, or general advice about
> using structural insulated panels (sips) to frame up a house? The
> ones I have been reading about have 3 or 3 1/2" polyurethane foam
> bonded to 7/16" osb on each side.

We built our timber frame house with SIPS - the "stress skin" type
that had 1/2" OSB on one side and 1/2" drywall on the other - even on
the coldest winter days in Upstate NY you can put your hand on an
exterior wall and it feels warm - I would highly recommend them.


Posted by StLouisMike on May 30, 2007, 6:32 pm
On May 28, 12:11 pm, racefan0...@yahoo.com wrote:
> Does anyone have any opinions, good or bad, or general advice about
> using structural insulated panels (sips) to frame up a house? The
> ones I have been reading about have 3 or 3 1/2" polyurethane foam
> bonded to 7/16" osb on each side.

We just finished our first full winter in our SIP home (4.5" walls, 6"
roof panels, urethane core). The local LP service said a typical new
home the size of ours would use 750-800 gallons of LP per winter. We
used 415 total gallons from the start of the heating season in October
through the week in April of below 30=B0 temperatures here in St Louis.
This compares to what we were paying for a new home in south county St
Louis for less than half the same square footage.

There was no noticable increase in our cost to build with the SIP's.
The service from our panel maker (noted on the web page) was
exceptional. Here is a quick link with general info. Visit the panel
mfg's site and look at the IR photos of a traditional home and a SIP
home and you will see why the SIPs perform so well.

http://home.earthlink.net/~mikefrandson/NewHouseRelease.htm


Posted by Andy Asberry on June 1, 2007, 4:09 pm
On 30 May 2007 15:32:32 -0700, StLouisMike

>On May 28, 12:11 pm, racefan0...@yahoo.com wrote:
>> Does anyone have any opinions, good or bad, or general advice about
>> using structural insulated panels (sips) to frame up a house? The
>> ones I have been reading about have 3 or 3 1/2" polyurethane foam
>> bonded to 7/16" osb on each side.
>
>We just finished our first full winter in our SIP home (4.5" walls, 6"
>roof panels, urethane core). The local LP service said a typical new
>home the size of ours would use 750-800 gallons of LP per winter. We
>used 415 total gallons from the start of the heating season in October
>through the week in April of below 30° temperatures here in St Louis.
>This compares to what we were paying for a new home in south county St
>Louis for less than half the same square footage.
>
>There was no noticable increase in our cost to build with the SIP's.
>The service from our panel maker (noted on the web page) was
>exceptional. Here is a quick link with general info. Visit the panel
>mfg's site and look at the IR photos of a traditional home and a SIP
>home and you will see why the SIPs perform so well.
>
>http://home.earthlink.net/~mikefrandson/NewHouseRelease.htm

Google could probably find the winter temps for Fort Worth. We turned
the heat on a total of 5 days this past winter. Interior temp was
never below 66°. I just looked at the thermostat. The heat pump has
been on 2 hours and 12 minutes the last 30 days. We use 5.5" wall and
8" ceiling panels.

--Andy Asberry--
------Texas-----

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