Standard Roof Pitch For A Garage

An average person can easily and safely walk upon these roofs without need of additional equipment.

Standard roof pitch for a garage.

A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible. The most commonly used roof pitches fall in a range between 4 12 and 9 12. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled. Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs. In the roofing trade the go to term is pitch and it is expressed in terms of 12 inches so the pitch of a roof is determined by how many inches the slope rises for every 12 inches it runs horizontally.

So if your roof rises 4 inches for every 12 inches of horizontal length then the pitch of your roof is expressed as 4 12. The way pitch also known as roof slope is measured is rise over run. Roof pitch is the measurement of roof steepness. Pitches above 9 12 are very highly angled and are designated steep slope roofs.

The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.