This vertical section details the window head interface with exterior siding, incorporating a flanged window unit beneath weather-resistive barriers. A self-adhered membrane is installed behind the flashing and lapped over the window flange, backed by a water-resistive barrier liner and primary weather-resistive barrier. Exterior cladding is mounted over furring strips with a sealant joint at the head condition. The window head features a metal flashing with end dams, rod and sealant at the interior side, and framing sized per architectural requirements with preformed corners behind the water-resistive barrier head liner.
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