How To Write Roof Pitch

To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.

How to write roof pitch. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. The primary reason roof pitch exists in the first place is to redirect water. The slope is the same as the pitch. It can also be written down as 25 or 14.

Pitch rise run 1 5 6 25. Divide the slope by two to get the pitch. X pitch 12 0 25 12 3. However most often a ratio of pitch also fraction is slang used for the more useful slope of rise over run of just one side half the span of a dual pitched roof.

The pitch of a roof is its vertical rise over its horizontal span. To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. As aforementioned there is no standard pitch of a roof. So let s say a roof rises 6 inches for every 12 inches in depth towards the peak.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. Calculate the roof pitch as the proportion of rise and run. The pitch of your roof is 3 12.

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. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. That is to say the roof pitch expressed as a ratio tells you how many inches the roof rises for every 12 inches of depth. Angle arctan pitch arctan 0 25 14 finally you can find the roof pitch in the form of x 12.

Leah answers a viewer s question about how to calculate the pitch of a roof on a structure. Express roof pitch as the ratio of the amount of the vertical rise of a roof or rise over the corresponding horizontal distance or run you write the pitch assuming a run of 12 inches thus the ratio would describe how much a roof rises for each foot of the run. For a roof with the ridge above one wall the span is the same as the run. First measure 12 inches from one end of the level and make a mark.

The roof pitch would be described as a 6 12 pitch. Recalculate this value into an angle.