How To Work Out The Pitch Of A New Roof

For a roof with the ridge above one wall the span is the same as the run.

How to work out the pitch of a new roof.

For example if the roof rises 4 feet and the span is 16 feet twice the run then the pitch is 4 16 or 1 4. One method to find the pitch is to climb on the roof and measure the rise for a 12 run. Divide the slope by two to get the pitch. Find the inverse tangent of the pitch to find the angle in degrees.

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. If you are trying to learn how to measure roof pitch calculations accurately you should really consider the importance of using a calculator. You ll need a level that is 12 or longer and a tape measure. Pitch is the incline of the roof represented as the ratio of rise to the span twice the run.

If your roof pitch is greater than 3 your roof is considered pitched read more about roof pitch at wikipedia. To convert between american roofing ratios and pitch degrees follow these steps. As aforementioned there is no standard pitch of a roof. On the roof hold the level perfectly level and measure the height from the roof to the level 12 inches away from where the level touches the surface this will be the rise.

The roof pitch measures the steepness of your shed roof and typically takes values from 1 to 12. Divide the first part of the ratio by 12 to work out the pitch. Express roof pitch as the ratio of the amount of the vertical rise of a roof or rise over the corresponding horizontal distance or run you write the pitch assuming a run of 12 inches thus the ratio would describe how much a roof rises for each foot of the run. Here are a couple examples.

The next step is to punch in 1 whatever your tangent is to find the angle of your roof pitch. Here is the equation in full roof pitch 1 tangent rise run. A 12 12 pitch roof has a pitch angle of 45.