Window Drip Cap Flashing
Windows require proper flashing for water management, which includes using a drip cap
(flashing). The specific installation details are often governed by the window and flashing
manufacturer's instructions, which must comply with the IRC. The key principles are to
install the drip cap over the top window flange and trim, seal the sides and top, and ensure
a gap at the bottom to allow water to drain away from the structure. Window Drip Cap Flashing
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