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Information for Contractors
Air Barrier Preparation
We propose to infiltration seal all windows and doors with low expansion foam sealant. Application would be from the inside and concentrate on creating an air seal from jamb to rough-opening framing against the outside casing or nailing flange.
Air barrier material (if used) should be cut off and stapled within 1” of the outside sheathing (related work by others) to assure a good wood-to-wood seal near the outside of the wall cross-section. Sealing, not filling the jamb space, is our goal for this work. This avoids pressure against the jambs.
