Roof Pitch Formula

Technically roof pitch is the ratio of total vertical roof height the rise to total horizontal distance from wall to wall the span.

Roof pitch formula.

In the roofing trade the go to term is pitch and it is expressed in terms of 12 inches so the pitch of a roof is determined by how many inches the slope rises for every 12 inches it runs horizontally. By slope angle formula steepness can be obtained by dividing vertical rise by horizontal span. In the imperial unit of measurements the slope is expressed with the rise and run. Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio.

In civil engineering the slope is the numerical measure of the steepness of a roof. The calculator above can handle much of this math. 48 10 4 8. The angle or pitch of a roof is calculated by the number of inches it rises vertically for every 12 inches it extends horizontally.

Roof pitch formula image 1 12 to 12 12 roof pitch 7 12 pitch this is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations. This will allow your project to carry the depth and detail in the roof that you wanted as well as make sure that it will maintain a sturdy and effective nature throughout. Pitch is the incline of the roof represented as the ratio of rise to the span twice the run. Since pitch is the rise over a 12 inch run divide the run by 12 to get the multiplier in this case 120 12 10.

For example if the roof rises 4 feet and the span is 16 feet twice the run then the pitch is 4 16 or 1 4. The pitch of this roof is 4 8 12. If you want to know how to find the pitch of a roof then start with a calculator. Even if you want to use a flat roof pitch calculator system you will be able to find one.

If you want to find the roof pitch in the form of x 12 simply calculate the pitch and substitute 12 for the run length. Pitch tan angle where angle is the roof pitch expressed in degrees. How to measure roof pitch. The value displayed as the rise will be your x.

For example a roof that rises 6 inches for every 12 inches of horizontal run has a 6 in 12 pitch. Roof slope is also called as roof pitch.