How To Determine The Angle Of A Roof

The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed.

How to determine the angle of a roof.

Roof pitch calculator results explained. Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. 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. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.

The value displayed as the rise will be your x. Pitch tan angle where angle is the roof pitch expressed in degrees. Rafter height width from pythagoras remember that at school so. The angle of your roof is calculated the same way you d work the angle of a right angled triangle.

If you re thinking about replacing your roof with a new one you will need a roof truss calculator. 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. This online truss calculator will determine the all in cost of your truss based on key inputs related to the pitch width and overhang of your roof. How to measure roof pitch.

If you want to find the roof pitch in the form of x 12 simply calculate the pitch and substitute 12 for the run length. Calculate the tangent of the roof angle by dividing the roof height by the roof width. Although there s isn t any standard pitch of a roof used on all kinds of sloped roofs you can determine the range of pitches by using a roof angle calculator and by considering factors like the local climate and roofing materials. Roof pitch is used to describe the slope or angle of the roof.

Knowing the pitch of your roof is useful when designing an addition installing skylights or cutting new rake boards. Here s an easy safe way to determine the pitch from inside your attic. To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.