How To Determine The Pitch Of Your Roof

Check your results with the omni roof pitch calculator.

How to determine the pitch of your roof.

Marvel at your mathematical. Before you calculate roof pitch you ll need to measure the slope of your roof. 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. Divide the first part of the ratio by 12 to work out the pitch.

To convert between american roofing ratios and pitch degrees follow these steps. This is the amount your roof inclines in a 1 foot span or the pitch. How to measure roof pitch. After measuring the slope estimate the roof pitch by dividing the slope by 2.

Here s an easy safe way to determine the pitch from inside your attic. Hold the level straight and level bubble centered and then measure the vertical distance down from the your 12 mark on the level down to the roof. Knowing the pitch of your roof is useful when designing an addition installing skylights or cutting new rake boards. The easiest way to do this is by accessing a rafter in your attic if you can.

Climb up on your roof. 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. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.