How To Figure Out Roof Pitch With Speed Square

It is often compared to slope but is not exactly the same.

How to figure out roof pitch with speed square.

Check your results with the omni roof pitch calculator. 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. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Set the level on the edge of the speed square as shown below then place the heel of the speed square on a rafter or gable edge of the roof.

With a torpedo level and a speed square you can pretty accurately gauge the pitch of any roof with a gable end photo 1. Leah answers a viewer s question about how to calculate the pitch of a roof on a structure. As aforementioned there is no standard pitch of a roof. Then place a torpedo level on the fat base of the rafter square and adjust the square until the level is level.

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. Leah s recommended tools for beginner diy ers. Divide the first part of the ratio by 12 to work out the pitch. Place the pivot point against the shingles.

Finding the pitch of a roof is simple with a speed square. To accurately calculate the area of your roof you must first determine its slope or pitch. To convert between american roofing ratios and pitch degrees follow these steps. Marvel at your mathematical.

A speed square and level can be used to easily find the pitch of a roof. A 12 12 pitch roof has a pitch angle of 45. Because of its compact size it is frequently used as a saw guide when cutting framing members as well as a layout tool for quick 45 and 90 degree cuts. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.

Read the pitch on the side of the rafter square.