2 Inch Per Foot Roof Slope

Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares.

2 inch per foot roof slope.

The triangle diagram will be re drawn to scale with all dimensions marked. 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. Slope conversion tables 1 4 1 2 3 4 1 1 1 4 1 1 2 1 3 4 2 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 0 25 0 50 0 75 1 00 1 25 1 50 1 75 2 00 2 25 3 4 5 6 7 8 9 10. Note that roof pitch is sometimes used in parallel with roof slope.

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 or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Angle the angle of a roof is the same as the roof s slope except instead of being. The slope ratio represents a certain amount of vertical rise for every 12 inches of horizontal run.

The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Feet inches enter run the flat level length then click pitch angle or rise to select then enter other known dimension angle or pitch. This is the basis for calculating the angle which is approximately a 1 19 degree slope.

A 12 12 roof pitch would be selected as 12 inches of rise per foot with no fraction and the value generated by the calculator would be 45º. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. I e 4 inches of rise per 12 inches one foot of run. A roof that rises 4 inches for every 1 foot or 12 inches of run is said to have a 4 in 12 slope.

However roof pitch is technically measured and defined differently. However you can only use this pitch with built up roofing or specialized synthetic roofing. Roof pitch calculator results explained. 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.