1 2 Pitch Roof

Roof pitch designations are comprised of two numbers indicating a ratio.

1 2 pitch roof.

The table below shows common roof pitches and the equivalent grade degrees and radians for each. Most roof s have a pitch in the 4 12 to 9 12 range. A ratio of the ridge height to the width of the building span and as a ratio of the rafter length to the width of the building. To see roof pitch to degrees equivalents.

The ridge height is 1 9 to 1 7th the span an angle of 12 5 to 16. Roof pitch defined and explained. What is a roof pitch examples. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Or the colon can replace the slash as in 2 12 or 7 12. Historically roof pitch was designated in two other ways. 5 12 roof pitch 22 angle 22 62. The examples below provide visual examples of roof pitch.

Roof slope roof angle and pitch degrees. Roofing terminology for roof pitch are. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. 4 12 roof pitch 18 angle 18 43 degrees details.

Commonly used roof pitches were given names such as greek. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof.