Building and Carpentry
Home Construction

What is the right roof pitch for a dormer?

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Wiki User
03/27/2013

12 pitch ?

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Depends on what type of dormer you are talking about. If the dormer has a pitched roof, such as a "gable," it's framed with the same roof pitch as the original roof, so it blends in.


A "shed," dormer on the other hand is usually had on homes with a roof pitch of at least 8 in 12 or steeper. This type of dormer needs a roof pitch shallower than that of the original. A general rule of thumb is to keep a shed dormer at least 4 in 12. (A shallower or steeper pitch will make the dormer look out of place).