How To Determine Roof Pitch When Building

How to calculate the pitch of a roof.

How to determine roof pitch when building.

However if you have a more complex roof you may need to calculate pitch section by section. To convert between american roofing ratios and pitch degrees follow these steps. Find the inverse tangent of the pitch to find the angle in degrees. Check your results with the omni roof pitch calculator.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. Roof pitch is used to describe the slope or angle of the roof.

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. After measuring the slope estimate the roof pitch by dividing the slope by 2 if you have a simple gable roof. Figure another roof pitch to use when the contractor assembles a pair of rafters for evaluation of the pitch. To do this use one hand to hold the longer leg of the square in place with the 12.

Divide the first part of the ratio by 12 to work out the pitch. Homes and other buildings have roofs with slopes ranging from no slope or flat to very steep slopes. Marvel at your mathematical. For more on calculating roof pitch and understanding how pitch and slope are different read on.

After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. Outside of the u s a degree angle is typically used. Roof pitch calculator results explained.