12 12 Roof Pitch

1 12 roof pitch angle 4 76 degrees.

12 12 roof pitch.

The examples below provide visual examples of roof pitch. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Roof pitch designations are comprised of two numbers indicating a ratio. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.

The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. A roof with a 6 rise for every 12 run has a 6. Roofing terminology for roof pitch are. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

Conventional forms range from 4 12 9 12 and steep slope roofing is more than 9 12 and requires extra fasteners. Roof pitch is a term describing how steep or flat your roof slope is. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. Roof pitch defined and explained.

A 12 12 roof pitch can also be expressed as 12 over 12 and when you re talking to a roofer this is the most common way you ll hear it explained because it s easy to say in conversation. The exact roof slope in degrees is given by the arctangent. The combination of two numbers are used to display or show the roof pitch. Or the colon can replace the slash as in 2 12 or 7 12.

To determine your roof pitch calculator. 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. Roof pitch is used to describe the slope or angle of the roof. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.

Thus pitch is typically greater in areas of high rain or snowfall. Roof slope roof angle and pitch degrees. Roof pitches 4 12 thru 12 12. The steep roof of the tropical papua new guinea longhouse for example sweeps.

Pitch has a basic range but it s not uniformly defined however the range from flat that is not perfectly flat but is sloped in order to drain water is up to 12 2 12. Another way to express a 12 12 pitch is 12 and 12 in this pitch the first twelve is your roof s rise and the second twelve is the roof s run.