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Air seal and insulate double-walls that are half-height or full-height walls used as architectural features in homes.
Right – Wood-to-sheathing joints are caulked so the sheathing can provide an air barrier for the home.
Stucco is installed over rigid insulation, which is installed over a drainage plane consisting of a drainage gap and building wrap layer over the sheathing
Wrong - Cantilevered floor joist bay cavities are not air sealed with a solid air barrier aligned with the exterior wall.
Wrong - Cantilevered joist bay cavities are not air sealed with a solid air barrier, allowing outside air to flow between floors.
Wrong – Insulation does not fill entire cavity nor is there an air barrier present between the double wall
Wrong – The gable end wall failed because the rigid foam sheathing was not backed up by plywood or OSB.