The 6/12 roof pitch is by far the most common residential roof pitch. It is steep enough to shed water quickly while also being what we refer to as “walkable”.
What is A 6/12 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 6/12 roof is 26.57 degrees.
Think about this when you are talking about the steepness of a roof. A roof with a 3/12 pitch has a much lower slope than a roof with an 8/12 pitch.
Photo Examples of a 6/12 Roof Pitch


6/12 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 6/12 pitch roof uses a multiplier of 1.1180