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how much closed cell foam? Post New Topic | Post Reply
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dpschuste
Posted: Dec 02, 2017 02:58 PM
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how much closed cell foam?
I live in south central PA--zip 17349. My zone map says I should have R38 on the cathedral ceiling. My spray foam contractor says 4" of cc is plenty to do the job--beyond 4" there is no benefit. Is this enough? I am particularly worried about condensation in the ceiling, as I've had that in a prior, badly insulated home.I would appreciate any advice! |
