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Posted by Jeff Dieterle on July 4, 2007, 7:39 am
You can't get this stuff to ignite with a match and have to hold a torch for
a little bit to get it going., then it burns extremely slowly. It is not
permeable as I tried to blow air though it with my compressor. So how do I
go about finding what this stuff is, the seller is no help and I was fishing
around here in case my description struck a note with somebody.
> Jeff Dieterle wrote:
>> I got a good deal on a type of sheet insulation. The sheets are
>> 4'x9'x2"thick', not rigid like Styrofoam board, and not flimsy like
>> polystyrene. Not exactly sure what they are except it's some type of
>> foam, they came in pink and white sheets, to get the varying thicknesses
>> 3/4 or 1 inch sheets are laminated together. They seller had them from 2"
>> all the way up to 4" thick. With a stack of these on a trailer the top
>> couple sheets caught the wind and double over in the middle but didn't
>> tear or suffer any damage. One guy told me he thought that's what's used
>> in semi trailers.
>> Anyway if somebody is familiar with these what's the "R" value and do I
>> need a vapor barrier on top of them.
>> Thanks
>> Jeff
>
> If you plan to use this where lives are involved it would really be a good
> idea to find out what it is made from and if it is suitable for that use.
> Foam that is intended for dwellings is treated to minimize burning. Flame
> spread is fast on foam and the gases from burning it are quite deadly.
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