When adding foam insulation to a roof assembly, is there any reason to bring it significantly past the exterior building line?
The assembly I am asking about is:
I joist rafters filled with dense pack cellulose/sheathing/4" polyiso/sheathing/waterproofing/metal roofing.
Is it ok to stop the foam layer at the building/insulation line to save material on the gable and eave overhangs?
Posted May 17, 2014 5:22 PM ET
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