Formula To Find Slope Of Roof

Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.

Formula to find slope of roof.

Write the roof slope as the ratio of rise over run or vertical distance over horizontal distance. For example if your tape measure found a 6 inch vertical distance to the 12 inch mark on your level the slope is 6 12 or 6 in 12. Roof slope is also called as roof pitch. In civil engineering the slope is the numerical measure of the steepness of a roof.

Roof pitch calculator results explained. 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. The steeper a roof is sloped usually the more attractive it is considered. Rafter rise run from the pythagorean theorem.

Angle the angle of a roof is the same as the roof s slope except instead of being. How to calculate roof pitch. In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Use the following formula which also describes a right triangle.

Some of the frequently used roof slopes are. In the imperial unit of measurements the slope is expressed with the rise and run. Generally roof pitch is calculated from the same formula that describes a right triangle. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

You can also calculate roof pitch even without using a roof slope calculator. 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. Rafter rise run this formula is from the pythagorean theorem. It is often compared to slope but is not exactly the same.

A common formula is. Rise run pitch where pitch is expressed in percent. You can use the following equations to find the length of the rafter and the slope. By slope angle formula steepness can be obtained by dividing vertical rise by horizontal span.

Calculate the roof slope. Roof pitch angle calculator briefly about the calculation. The roof pitch angle calculator is used to calculate both the roof slope angle and the missing roof data the projection height length and slope angle of the roof. Visually where and what values can be seen in the drawing of the calculator which is under the form of calculation.

Here are the equations you may use to solve for the length of the slope and the rafter.