"Bob, We wanted to drop a note to let you know how much we appreciate the work that was done at our home. The Gutters, windows, siding and doors all look great and are exactly what we wanted. Eve... » more
- Don and Sherrie Frieden of Muscatine, Iowa


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Sloped Sill

The sill of some double-hung windows that has a downward slope toward the outside with a capture dam that helps to keep water from infiltrating the base of the bottom sash. Sloped sill assists water drainage to the exterior of the window.

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