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Forums > Green Building Technologies > Radiant Heating > Subject: underslab insulation compressive strength?

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Posts:2321

10/19/2006 9:00 PM
First of all, whats with all the spam? I am installing radiant heat under slab in a shop/garage. If my pickup weighs 6000 lbs, then 1 tire has 1500lbs on it and if the tire contact area is about 5inch x 5inch then there is about 60psi. So do i need the insulation to have 60lbs of compressive strength???? owens foamular 600???

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jipp

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11/02/2006 1:06 PM
in two words, the 60 lbs are applied to a large rigid surface distributing the force to a large area of insulation. so it's definitely not 60psi compressive strength. I don't know of any calculations for that! Go by the standards.

jipp

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Posts:3

11/02/2006 1:21 PM
Me again. I found the doc that NRT.rob refered to and there is a paragraph that will interest you.. read the top of page two: http://www.rima.net/pdf_files/TB101-UnderConcreteSlabs.pdf bye

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Forums > Green Building Technologies > Radiant Heating > underslab insulation compressive strength?

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