At 0:38 of this FineHomeBuilding video https://youtu.be/zEleTgfifS0?t=38, it says one valid way to create a positive slope for making a sill pan for a window is to angle the rough sill by 5 degrees to the outside. I'm considering going this route due to SureSill not being in stock nor beveled cedar. Are there any drawbacks to taking this approach that I should be aware of?

1 Answer 1


Angling the rough sill is perfectly ok. That was the old school way before fancy presills and suresill.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.