Air Sealing at Top Plate with Overhanging Rafters
Full remodel of interior and exterior of a 900 sqft rectangular home in Los Angeles. I’m puzzled about how best to air seal my exterior wall assembly at the top plate with how the roof rafters and top plate meet.
Exterior wall assembly will be: Framing / Zip Sheathing / 1.5″ MW / 1 x 4 Furring / Hardie Board Siding
The plan is to keep the attic ventilated and seal at the ceiling level. Exterior stucco was removed and the top plate is as seen in the attached photo. The roof rafters are notched and overhanging the top of the double plate along with blocking between the rafters which covers more than half of the top plate.
I’d hate to remove all the blocking so that I can get the ZIP sheathing up higher and flush with the top of the top plate, but I will if that is what should be done. Hoping I’m not the only one who’s run into this issue so far.
Thanks for the help!
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