Sealed attic with dense-packed cellulose?
I am a HERS Rater in NY. Zone 4A.
I have an architect that is speccing a sealed attic with dense pack cellulose in 2×12 cavities. Is that possible? I thought closed cell spray foam was required.
Shingles, Blueskin, 1/2″ cdx plywood, dense pack cellulose, ” 1/8″ plywood or permeable membrane to seal in dense pack”
There will be blocking at eaves between rafters.
Any thoughts appreciated.
Thanks in advance.
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