How To Work Out The Pitch Angle Of A Roof

To convert between american roofing ratios and pitch degrees follow these steps.

How to work out the pitch angle of a roof.

Measure and mark length on horizontal level to vertical level. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Enter length and height measurements and hit calculate to find roof pitch and angle. The roof pitch angle greatly factors into the replacement cost of the roof.

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. Roof pitch is used to describe the slope or angle of the roof. A 12 12 pitch roof has a pitch angle of 45. Then mark height on vertical level to roof surface remove levels and measure marked height.

After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. What degree angle is a 12 12 pitch roof. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. Here is the equation in full roof pitch 1 tangent rise run.

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. The angle of your roof is calculated the same way you d work the angle of a right angled triangle. Drag the slider to animate or with phone or tablet measure directly from roof surface. If you are trying hard to work out how to figure roof pitch measurements the calculator takes away all of those problems for you more or less instantly.

Find the inverse tangent of the pitch to find the angle in degrees. Roofs having a lower pitch have a greater chance of creating water leaks as well as ice damming and so they require an intensive waterproofing system. The next step is to punch in 1 whatever your tangent is to find the angle of your roof pitch. Rafter height width from pythagoras remember that at school so.

A steep roof usually sheds water quickly which is quite difficult to work on.