Way above code attic insulation
I have a Tudor with a funny crawl space.
To first approximation think a cathedral ceiling, where the ceiling of room below leaves a triangular (extruded) attic space, the height of the attic area is approximately 4’.
im considering doing 2-3” of ccSPF on the roof rafters, air sealing the floor, and then filling the entire cavity with cellulose, since no one ever needs to access the area.
I don’t want to leave an air gap because of typical moisture issues.
this would certainly be way overkill on a thermal insulation basis, and clearly un-necessary, but my interest is in aggressively reducing air leakage.
If we can put aside the absurdity of 4’ of cellulose is there anything wrong with this?
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