How To Calculate Pitch Of A Roof

A speed square and level can be used to easily find the pitch of a roof.

How to calculate pitch of a roof.

Set the level on the edge of the speed square as shown below then place the heel of the speed square on a rafter or gable edge of the roof. Write the roof slope as the ratio of rise over run or vertical distance over horizontal distance. The pitch of this roof is 4 8 12. Angle the angle of a roof is the same as the roof s slope except instead of being.

Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. How roof pitch is calculated. 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. For example if a roof has a pitch of 4 12 then for every 12 inches the building extends horizontally it rises 4 inches.

After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Calculate the roof slope. If you want to know how to find the pitch of a roof then start with a calculator.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. 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. Measure with a speed square. Even if you want to use a flat roof pitch calculator system you will be able to find one.

To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. Roof pitch calculator results explained. The calculator above can handle much of this math. 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.

A roof pitch multiplier also known as a roof pitch factor is a number that when multiplied by the area covered by a sloped roof gives the actual area of the roof. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. The roof pitch is the slope of the rafter. What is the roof pitch.

The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need. It is often compared to slope but is not exactly the same. To accurately calculate the area of your roof you must first determine its slope or pitch. The maths behind this number is that it is the square root of rise run 2 1.