Figuring Out Roof Pitch

Find the inverse tangent of the pitch to find the angle in degrees.

Figuring out roof pitch. First measure 12 inches from one end of the level and make a mark. Roof pitch affects the actual area of the roof. Divide the first part of the ratio by 12 to work out the pitch. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.

Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Check your results with the omni roof pitch calculator. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. To convert between american roofing ratios and pitch degrees follow these steps.

To accurately calculate the area of your roof you must first determine its slope or pitch. After measuring the slope estimate the roof pitch by dividing the slope by 2 if you have a simple gable 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. Roof pitch calculator results explained.

However if you have a more complex roof you may need to calculate pitch section by section. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. Here s an easy safe way to determine the pitch from inside your attic. Angle the angle of a roof is the same as the roof s slope except instead of being.

Roof pitch is used to describe the slope or angle of the roof. It affects walkability as well as drainage and roofs in areas of high rain or snowfall tend to have steeper pitches. 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. Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.

For more on calculating roof pitch and understanding how pitch and slope are different read on. Marvel at your mathematical. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. How roof pitch is calculated.

Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. A 12 12 pitch roof has a pitch angle of 45. If you are trying to learn how to measure roof pitch calculations accurately you should really consider the importance of using a calculator. To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page.