How To Check Roof Pitch

Place the end of your level the 0 inch point of your 12 marking against the roof surface.

How to check roof pitch.

Simply mark a level at 12 hold it perfectly level and measure from the roof surface to your 12 mark this. A 12 12 pitch roof has a pitch angle of 45. Marvel at your mathematical. The example to right shows 2 different ways to determine or calculate roof pitch also called roof slope.

This is the amount your roof inclines in a 1 foot span or the pitch of your roof. Here s an easy safe way to determine the pitch from inside your attic. Divide the first part of the ratio by 12 to work out the pitch. Find the inverse tangent of the pitch to find the angle in degrees.

To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. First measure 12 inches from one end of the level and make a mark. Example a the measurements are taken from on top of the roof. Most people use it to mean the steepness of the roof.

The term pitch has two different meanings when it comes to roofs. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Check your results with the omni roof pitch calculator. Some carpenters consider it more correct to use the term slope for the steepness and use pitch to describe the roof s overall dimensions.