Rigid foam for hot roof
I am interested in converting our bungalow attic to finished space, and it was not designed for venting. I've heard I can do a hot roof insulation method using spray foam. However, I am a DIY guy by nature, and was interested in methods I've seen using closed-cell polyiso rigid foam and spray foam cans to achieve the same result, at least in walls. I am curious about using this method on a hot roof. Surely it would cause head-scratching with code officers. Would it work, though? The rafters are only 2x6'', so I could theoretically fill the cavities with rigid foam, seal them up with spray cans, and then apply more rigid foam in the opposite direction for extra air sealing.
I live in a cold climate (Maine) so it looks like 8+ inches of closed cell foam gets me to code.
Posted Jul 13, 2014 9:28 AM ET
Edited Jul 13, 2014 9:30 AM ET
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