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Replacement Window - Sloped Sill

Folks - I am replacing some very old/damaged D/H windows with vinyl replacements. Have done so successfully in the past many times, but the sills were level. In this case, the sills are sloped to the outside, on the order of 1"/12". What is the best way to deal with this? My thoughts were to be to cover the sill area with coil stock extended to meet over the exterior coil stock trim, and caulk the seams and window base. Is there a better way to deal with this? Does this area need to be shimmed?

Any ideas?


Re: Replacement Window - Sloped Sill

most vinyl replacement windows come with a filler strip that closes the gap between the exterior outside of the window with the exterior sloped portion of the sill. you don't shim the bottom of the replacement window, just the sides only which are usually held with two screws per side. youtube "how to install remplacement windows" that should give you a good idea as to how it's done.

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