Waterproof Window Sill. I doubt they are really capable of supporting a layer of stucco on top of them. A window sill is normally constructed of a wood base that is either waterproofed with a sealant or painted a certain colour. Buy home window sills and get the best deals at the lowest prices on ebay!

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Decorative interior plastic windows sill cover pvc window sill. Waterproof using membrane on a window sill for an invisible repair. Window sills are not an especially complex.

I doubt they are really capable of supporting a layer of stucco on top of them.

The sills are drilled and set into place, then all seams are caulked to make them waterproof. A windowsill is the piece of wood that runs from inside the window to outside the window. Use a cleaning toothbrush, brush the window sill track to lift off any caked on debris. Waterproof using membrane on a window sill for an invisible repair. Rick mentions putting a piece of clapboard on the sill to create a sloped drainage plane. Flexstone window sill trim is made of the same material as flexstone panels and adds a complementary, finished look to a flexstone surround. Window sills are not an especially complex. We carry standard and discontinued colors;