For Roof Slopes From 2 12 To 4 12

For example if you measure 4 inches the pitch of your roof is 4 12.

For roof slopes from 2 12 to 4 12.

The combination of two numbers are used to display or show the roof pitch. Divide the percentage number by 100. For a slope of 55 55 divided by 100 0 55. Most roof s have a pitch in the 4 12 to 9 12 range.

If a roof slope rises say 4 inches when measured 12 inches along the bottom of a horizontal roof truss the roof slope is said to be 4 12. 55 slope is equal to a slope of 28 81. 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. Roof pitch is a term describing how steep or flat your roof slope is.

Giving you a slope of 8 4 in 12 or. If this isn t practical then perform the same measurement on the underside of. 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. This will give you the rise over run or pitch.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. The table below shows common roof pitches and the equivalent grade degrees and radians for each. I e 4 inches of rise per 12 inches one foot of run. Roof slopes are most commonly defined by the rise over run ratio.

8 2 5 inches in 12. 0 7 x 12 8 4. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.