Polyethylene or peel-and-stick membrane?
I am working on a cathedral ceiling with exposed rafters. (Rafters, Tongue and groove, 5/8 plywood, 6″ of polyiso, 1/2 OSB, underlayment and metal roof).
I have available a 10 mil’ polyethylene roll that would cover the entire roof area in one piece. Is this an acceptable method for air sealing the system? I know this material doesn’t have the advantage of “self healing” around fasteners. Would that be a concern?
I am in Austin, Tx.
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