How To Work Out The Pitch Angle Of A Roof

Hold spirit levels plumb and level.

How to work out the pitch angle of a roof.

Rafter height width from pythagoras remember that at school so. You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. Finally you can find the roof pitch in the form of x 12. Enter length and height measurements and hit calculate to find roof pitch and angle.

Pitch rise run 1 5 6 25. For many people working out the roof pitch angles can be a bit of a nightmare especially if you are going to do it yourself and try to manage it all on your own. Divide the slope by two to get the pitch. Naturally this does not go down particularly well without the right tools knowledge and assistance.

Drag the slider to animate or with phone or tablet measure directly from roof surface. The slope is the same as the pitch. Angle arctan pitch arctan 0 25 14. The angle of your roof is calculated the same way you d work the angle of a right angled triangle.

Roof pitch refers to the slope which the rafter creates. For a roof with the ridge above one wall the span is the same as the run. Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m. Then mark height on vertical level to roof surface remove levels and measure marked height.

Calculate the roof pitch as the proportion of rise and run. Measure and mark length on horizontal level to vertical level. If you prefer to work the angle out the traditional way without our handy calculator you can use the following equations to find the length of the rafter and the slope.