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Weatherstripping is the fuzzy or rubbery strip that runs along the edges of the sash. Its purpose is to improve the seal around your sash and prevent air from leaking through.
This page will inform you on the types of weatherstripping, what can go wrong with them and how to identify worn weatherstripping.
Signs of a failed weatherstripping
Weatherstripping is full of dust or brittle
Weatherstripping is cracking
Air is leaking through perimeter of the sash
Weatherstripping is partially or completely missing
Why does weatherstripping fail?
Types of Weatherstripping
Weatherstripping comes in a variety of styles
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