WINDOWS SILLS AND CASINGS
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- Water protection: The exterior sill is typically angled downward to direct rainwater away from the walls and foundation, preventing leaks and moisture damage like rot and mold.
- Structural support: As a rigid base, the sill provides structural integrity to the window, preventing it from shifting as the building settles.
- Energy efficiency: A properly installed sill creates an airtight seal that helps insulate the window, reducing drafts and heat loss.
- Decorative space: The interior sill, technically known as a "window stool," is a flat surface that can be used to display plants, books, photos, and other decorative items.
