FTC Ruling on InsulTarp

Unknown

*SMACK*

scott markle_2

Some points I remember about this debate.

Reflective barriers require an air space to be effective, Aluminum reflective materials are subject to degradation, especially in the high alkalinity high moisture environment under a concrete slab.

Even XPS is subject to degradation, it has good track record, but If I recall correctly is says on the dow board 15 year thermal performance guaranty. I encountered some Foamula (owens corning brand) board that had been stored out side for many years and it was obvious that some of the panels had taken on water, there was also a lot of carpenter and colonization. Under slab water movement is the greatest threat because it can literally carry away the heat.

Unknown

So,

pretty much no matter what you use you're screwed,,,

Back to scorched air for me!

Unknown

water doesnt appreciably reduce the insulation value of XPS.

Bugs, that's another story, but sand beds seem to help.

Unknown

Yes,

Or, no, I never did get into the bug aspect. Figured I had enough on my plate already, no sense in opening another "can of worms". (Yes, very bad pun)