How Do I Determine The Pitch Of My Roof

After measuring the slope estimate the roof pitch by dividing the slope by 2.

How do i determine the pitch of my roof.

When you need to determine your roof pitch all you need is a bubble level and a tape measure. A 12 12 pitch roof has a pitch angle of 45. First measure 12 inches from one end of the level and make a mark. Angle the angle of a roof is the same as the roof s slope except instead of being.

Divide the first part of the ratio by 12 to work out the pitch. Roof pitch calculator results explained. The easiest way to do this is by accessing a rafter in your attic if you can. 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.

If you can t get to your attic you can measure slope on your rooftop as long as it s safe to go up there. Make sure your have a 12 mark on your level. Marvel at your mathematical. Find the inverse tangent of the pitch to find the angle in degrees.

Here s an easy safe way to determine the pitch from inside your attic. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. The level should be at least 12 long. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level.

Before you calculate roof pitch you ll need to measure the slope of your roof. To convert between american roofing ratios and pitch degrees follow these steps.