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The 9/12 roof pitch is popular with newer construction (think post 2000) and it is not a very walkable pitch for the average person. Due to it’s steepness, it does tend to shed water very quickly. For this roof pitch, you will need a safety harness.
What is a 9/12 Roof Pitch?
When you are talking about roof pitches, the first number is the number of inches the roof rises every 12 inches.
The angle on a 9/12 roof is 36.37 degrees.
Think about this when you are talking about the steepness of a roof. A roof with a 9/12 pitch has a much lower slope than a roof with an 12/12 pitch and a much higher slope than a 3/12 pitch.
Photo Examples of a 9/12 Roof Pitch
9/12 Roof Pitch Multiplier
When you are measuring your roof, you must always take into consideration the pitch of the roof when estimating for materials.
A 9/12 pitch roof uses a multiplier of 1.2500.
