How To Find Roof Slope

If it doesn t have this mark use a tape measure to locate.

How to find roof slope.

The most precise way to find the roof s slope is by measuring it from the underside. The value displayed as the rise will be your x. 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. To accurately calculate the area of your roof you must first determine its slope or pitch.

How to calculate the pitch of a roof. Use a level against the underside of the rafter you re measuring to get the most accurate value. For example if you find 4 inches of height with the tape measure at the 12 inch mark on the level your slope is 4 12 or 4 in 12. The slope of your roof is the ratio of vertical distance rise to horizontal distance run.

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. It is often compared to slope but is not exactly the same. The pitch is commonly defined as the ratio of rise over run in the form of x 12.

Homes and other buildings have roofs with slopes ranging from no slope or flat to very steep slopes. What is the roof pitch. Locate the level s 12 inch mark. Roof pitch is used to describe the slope or angle of the roof.

Roof pitch calculator results explained. Even if you want to use a flat roof pitch calculator system you will be able to find one. Access one of the rafters then take the measurement this way. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.

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. Measure the run length it is the horizontal distance between the roof ridge and the wall of the building. Angle the angle of a roof is the same as the roof s slope except instead of being. 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.

Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Roof slope calculator example of use. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. For example if a roof has a pitch of 4 12 then for every 12 inches the building extends horizontally it rises 4 inches.

Just write down the measurements you found. How roof pitch is calculated. The roof pitch is the slope of the rafter. There s no need to simplify them.

The rise is the height of the roof and the run is the horizontal span as pictured above.