1 12 Slope Roof

1 12 roof pitch angle 4 76 degrees.

1 12 slope roof.

Although there s isn t any standard pitch of a roof used on all kinds of sloped roofs you can determine the range of pitches by using a roof angle calculator and by considering factors like the local climate and roofing materials. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Roof slopes are identified using the gradient method described above where the rise varies but the run is usually 12. This means for every 12 horizontal units the roof must rise a minimum of 1 vertical unit.

Low slope roofs have gradients of 3 12 or less. What is a 1 12 roof pitch if a roof rises 1 in a length of 12 this is 1 12 roof pitch. To obtain an accurate roof pitch measurement properly measure the rise and run. Using a tape measure make a pencil mark 12 inches from the end of a carpenter s level.

In some very steep roofs you may see the gradient inverted so that the run varies but the rise is held as 12. 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.