1 2 Roof Pitch

Pitch is the term used to describe the angle slope or slant of your roof.

1 2 roof pitch.

The combination of two numbers are used to display or show the roof pitch. The pitch can be expressed numerically as a fraction. 0 pitch 1 00x the roof area. 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.

The pitch fraction represents a certain amount of vertical rise over the entire span. 2 12 roof pitch angle 9 46 degrees. The ridge height is 1 9 to 1 7th the span an angle of 12 5 to 16. The table below shows common roof pitches and the equivalent grade degrees and radians for each.

A roof pitch multiplier also known as a roof pitch factor is a number that when multiplied by the area covered by a sloped roof gives the actual area of the roof. Or the colon can replace the slash as in 2 12 or 7 12. Commonly used roof pitches were given names such as greek. 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.

1 pitch 1 01 2 pitch 1 02 3 pitch 1 03 4 pitch 1 05 5 pitch 1 085 6 pitch 1 12 7 pitch 1 16 8 pitch 1 21 9 pitch 1 25 10 pitch 1 31 11 pitch 1 36 12 pitch 1 42. Since this is a flat roof or nearly flat roof. Roof pitch is a term describing how steep or flat your roof slope is. 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. Historically roof pitch was designated in two other ways. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. For example given a roof with a rise of 4 feet and a span of 24 feet the pitch is 1 to 6 pitch which can be expressed as the fraction of 1 6.

You can go by the measurements taken by walking the roof. Roof pitch defined and explained. Most roof s have a pitch in the 4 12 to 9 12 range. 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.

A 12 to 24 pitch is expressed as 1 2. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. If a roof rises 2 in a length of 12 this is 2 12 roof pitch.