I'm looking at Insul-Tarp as an alternative to Styrofoam in a radiant heat,
poured floor project. Anybody have any experiences with it? It is supposed
to have an R-factor of 10.1, which is superior to styrofaom, while taking up
much less space than foam.
It sounds interesting but the R 7.2 inch foamboard is foilfaced and
that is part of insul tarps claim to. Cost is a main factor . What is
insuls tarps cost. Who rated it at 10.1 r per
1/2 "? . An independant lab. There is a co selling Foil covered plastic
packing, bubble wrap that say its " Like " r5, but it isnt. I
thought Foam was best,you should research it more. Foamboard r 14.4 may
cost 18$ per 32 sq ft.
1/2 " r-10.1 sounds unbeleivable.
Thats R 20.2 r per inch, foamboard is 3.5 to 7.2 per inch.
Insul-Tarp has an R factor of 10.1 before it's compressed under concrete. It
is not ASTM rated for under slab compression.
Use Slab-Shield. http://www.thermopan.com/products_thermolow-e.htm
Are you in an area that is prone to termites?
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