1 12 Slope Roof
What is a 1 12 roof pitch if a roof rises 1 in a length of 12 this is 1 12 roof pitch.
1 12 slope roof. Using a tape measure make a pencil mark 12 inches from the end of a carpenter s level. 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. Then you ll be able to measure slope from an unfinished attic space under the roof. In some very steep roofs you may see the gradient inverted so that the run varies but the rise is held as 12.
Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. 1 12 roof pitch angle 4 76 degrees. To obtain an accurate roof pitch measurement properly measure the rise and run. 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 slopes are identified using the gradient method described above where the rise varies but the run is usually 12. Low slope roofs have gradients of 3 12 or less.