How to properly install a window to prevent water damage
In short: Mastering window installation is a rite of passage for any apprentice. This video demonstrates the precise sequence required to ensure a window is both level and watertight, focusing on critical details like flashing tape and strategic caulking.
In this instructional session, Jeff Sweenor guides apprentices Kathryn and De’Shaun through the technical nuances of window placement. The process begins with fastening clapboard to the sill at a specific pitch and applying flashing tape for waterproofing.
A crucial detail involves the application of caulk: it is applied to three sides of the window, but the bottom is left open to allow trapped water to escape. Finally, shims are used to provide a slight lift, ensuring water can drain away from the unit.
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Sources
- Summary by Intellect · source: Window Class Back in Session | This Old House
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