i have already checked in the archives and didn’t really find what i want. i am installing a mastercraft door and am curious about sill falshing. what good does a door pan do if the rough sill where the door sits is flat? n i understand that a pan would keep water out of the house, but if it got wet underneath wouldn’t the door still be sitting in water? what needs to be done for protection as the door will not sit on a sloped sill. i was also wondering why i couldn’t use window flashing tape.
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Replies
Check out the door sil pans from Endura.... they are not flat.
http://www.enduraproducts.com/docs-literature/lit-instruc-warr-sizes-pdf/web-prod-literature/01SSill.pdf
ever make your own in a pinch?
On rare occasions I make a sill pan for a door out of membrane, but I usually order galv metal with a backdam.
While a flat pan isn't ideal, the idea of a pan is to keep any water from getting into the structure of a house.
So while water might sit under a door with a flat pan (with a back dam), it won't migrate into the framing, and cause a lot more damage. Yeah, it could cause the door to rot. But doors are pretty easy to replace.