What to do with bottom flap of Typar + air seal edge of sheathing?
My house in zone 6 will have perspirant walls (prefab walls) using 1-1/2 in of fiberboard as sheathing and outside insulation (three 1/2 in layers, the outer one being asphalt impregnated). That outer layer overhangs the foundation wall [sketch attatched]
1) Must I add air sealing to the bottom edge of the asphalt impregnated sheathing?
2) The prefab walls come with the Typar membrane hanging 1-1/2” below the sill plate level… What should I do with that flap?
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