Exterior roof insulation overhang?
Does continuous exterior insulation on a roof need to extend into the overhang spaces, or can those be blocked off? (saving on insulation costs / sq footage).
I’ve found diagrams specifying both ways (see attached images below).
This is for a small 8’x12′ shed roof with 1′ overhangs on all sides. With overhanging insulation I need 150 sq ft of insulation. Without the overhangs I only need 104 sq ft.
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