Tempo:
polyethylene air barrier and the window, door, or skylight frame (Figures 9 and 10). Overhangs and cantilevered floors over 9
unheated spaces or the exterior and ducts, chimney flue and pipe penetrations must also be made airtight.
Air barrier and moisture management details at window head
drainage space wood siding weather resistive barrier (WRB) over flashing head flashing extends min. 100 mm (4 in.) window beyond both sides WRB over top of window frame window frame double glazing trim around window foam insulation backer rod and interior sealant
10 Air barrier and moisture management details at window sill wood stud wall framing OSB sheathing weather resistive barrier (WRB) wood furring drainage space between siding and WRB foam insulation siding sill flashing with end dam extends out over trim below window sub-sill flashing directs moisture out from under window to drainage space metal angle backdam with caulking seal
unheated spaces or the exterior and ducts, chimney flue and pipe penetrations must also be made airtight.
Air barrier and moisture management details at window head
drainage space wood siding weather resistive barrier (WRB) over flashing head flashing extends min. 100 mm (4 in.) window beyond both sides WRB over top of window frame window frame double glazing trim around window foam insulation backer rod and interior sealant
10 Air barrier and moisture management details at window sill wood stud wall framing OSB sheathing weather resistive barrier (WRB) wood furring drainage space between siding and WRB foam insulation siding sill flashing with end dam extends out over trim below window sub-sill flashing directs moisture out from under window to drainage space metal angle backdam with caulking seal
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