Roof Pitch Level

Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled.

Roof pitch level.

Pitches above 9 12 are very highly angled and are designated steep slope roofs. Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

First measure 12 inches from one end of the level and make a mark. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. The most commonly used roof pitches fall in a range between 4 12 and 9 12. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.

Roof pitch refers to the slope which the rafter creates. You can also estimate a roof pitch by eyeballing it from the ground from the gable side with a level and ruler. Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs. For example if you used a 24 inch level and your measurement was 12 inches the pitch in your roof is 6 in 12.

A roof surface may be either functionally flat or pitched. In building construction roof pitch is the steepness of a roof quantified as a ratio or as number of angular degrees that one exposure surface deviates from horizontal level.