[Greenbuilding] metal-faced foam sandwich roof panels -- advantages?

[Drew A. Gillett, P.E.]

they are meant to be the entire roof, structure and all.
 the foam serves not only as insulation but also as the shear layer 
connecting the top and bottom metal sheets.  these are often used in 
solarioums, sunporches, lanaii, etc.
you will find they can easily span 10-16 feet.

sealeant is used in the joints between the panels.  they really are great 
for the intended purpose.  it would be a waste to use them as only 
insulation.
----- Original Message ----- 
From: "Reuben Deumling" <9watts at gmail.com>
To: "Greenbuilder list" <GREENBUILDING at listserv.repp.org>
Sent: Tuesday, April 10, 2007 2:45 PM
Subject: [Greenbuilding] metal-faced foam sandwich roof panels --  
advantages?


>I was just offered a large quantity of 4" thick x 42" wide x 20'-30'
> foam-metal sandwich panels that look as if they had been intended for use 
> in
> roof insulation. They are faced with metal on both sides, one side having 
> a
> textured surface that looks like it would be intended for the exterior. 
> They
> feature a fancy groove pattern for joining sheets together. I was 
> imagining
> using them as an exterior layer on a house roof, but although the price is
> decent, their size (and weight?) is real impediment. Have any of you
> encountered, used, or liked them? Is their large size (fewer seams) and
> integral roof surface worth the extra trouble of handling and storing 
> them?
> The roof in question to which I'm considering adding them has only two 
> short
> hips and one (planned) dormer.
>
> I think this link might describe the product or something similar
> http://www.pu.bayer.com/db/pu/pu_cms_internet.nsf/id/7D8A9ED8D468D571C1256F6B00420A4D
>
> Thanks for any advice..
>
> Reuben Deumling
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