Replies

1. 
   Jim_K_ | May 28, 2000 01:31am | #1

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   Something that may fit your criteria is rFoil. You can read about it
   at http://www.we-intl.com/rFoilhome.html#anchor928137 and probably
   other places. They have a product designed for under slabs. Don't know
   its effectiveness, so caveat empt

2. 
   Guest_ | May 28, 2000 06:02pm | #2

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   ur dreaming..

   we used to use 1 inch but it always got broken up by walking on it..

   now we use only two inch.. normally foamular, or styro-SM, or amoco (green)..

   now the XPS fabricators can give u different densities. so i wuld spec a 2 lb/cf 2 inch

   ..

   and why do you have buggies in a residential job?

   they will probably break up anything you try to install..

   b but hey, whadda i no?

3. 
   Ron_Budgell | May 28, 2000 09:35pm | #3

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   We often use bubble wrap. It's a double layer with one foil face which is laid down. I have no idea how it actually compares to XPS, but the people who sell it claim it's as good as or better than 2" and, when you tape the joints it's a moisture barrier, too. It's about 3/8" thick.

4. 
   Guest_ | May 28, 2000 09:35pm | #4

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   I'm going to be pouring the basement slab in an ICF house in the next month. I plan to insulate with 1" XPS, but I'd rather use something else for several reasons; 1) don't want to give up a full inch of headroom, 2) would rather have something that comes in a roll, and 3) I believe I'll need to put ply down to keep the mud-buggy from crushing it (pain in the rear). I've heard talk of an insulating material, something like a thick sill sealer, that comes in a roll. Any suggestions or am I dreaming?