To Measure Roof Pitch

To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.

To measure roof pitch.

Measure the inches from the level s end up to the bottom edge of the rafter. That is the roof s rise. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. To convert between american roofing ratios and pitch degrees follow these steps.

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. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Technically roof pitch is the ratio of total vertical roof height the rise to total horizontal distance from wall to wall the span. To accurately calculate the area of your roof you must first determine its slope or pitch.

Divide the first part of the ratio by 12 to work out the pitch. Angle the angle of a roof is the same as the roof s slope except instead of being. A 12 12 pitch roof has a pitch angle of 45. Marvel at your mathematical.

Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares. How roof pitch is calculated. Knowing that will determine what your roof s pitch since the run is 12 inches by default.

That measurement is the roof s rise. 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. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. Check your results with the omni roof pitch calculator.

Find the inverse tangent of the pitch to find the angle in degrees. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Roof pitch calculator results explained.

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. When you re arranging for repairs or roofing material your calculations will be way off if. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. Although most homeowners do not need to measure pitch it still pays to understand this term.

In the attic put the level against a rafter with the 12 inch mark on the bottom.