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garys_2k
Premium
join:2004-05-07
Farmington, MI
Reviews:
·Callcentric
reply to robbin

Re: Insulating Attic

Yeah, it allows you to NOT have a ventilated attic, where the goal would be to keep the attic space as cold as possible. All of the insulaiton is against the roof's inner surface, with the vapor retarder (in this case, the rigid foam boards' foil sheet) facing the attic. Spray foam like Icynene can be used for this as well as unfaced fiberglass (the spray foam has more R/inch but either can work).