ZeroCottage

San Francisco's First Net Zero Passive House

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December 10th: The framing is topped out to the roof, including the south facing monitor to provide solar gain. The black membrane on the wall is Grace Perm-A-Barrier.  It’s stuck to the sheer ply to form a super tight moisture and air barrier. 2” of XPS foam insulation will go on over it, then the green super building paper, then the rain-screen system.

December 10th: The framing is topped out to the roof, including the south facing monitor to provide solar gain. The black membrane on the wall is Grace Perm-A-Barrier.  It’s stuck to the sheer ply to form a super tight moisture and air barrier. 2” of XPS foam insulation will go on over it, then the green super building paper, then the rain-screen system.