I'm going to replace the windows in my 55 year old house. It's not a big job - small house, one story. The window sills slope at about ten degrees. I want to replace them and would like to know if it matters if the sills slope. If I put in flat sills and make sure everything is caulked well, should that work ok? The eaves of the house overhang several feet, so some rain hits the windows, but they're partially shielded by the eaves. Thanks.
You really do want the slope. A flat sill will cause nothing but trouble, no matter how well you caulk it. It isn't hard to do the slope, will last, and will match the look of the house.
Is there some reason you don't want to do the slope?
-kevin
Yeah, I'm with kevin. You want some slope. No matter how great the products you use or how well you prep/finish it, standing water will kill a paint job. Better to shed that water -- even on a house with brick facades, the brick sill is sloped.
Standard slope requirement is 15=BA. If water gets into the wall assembly, rot, deterioraton and termites follow. TB
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