How Do I Find Out My Roof Pitch

Also referred to as roof slope or roof slant so what does the 7 12 in the example to the right mean.

How do i find out my roof pitch.

Rafter rise run from the pythagorean theorem. Climb on the roof and measure. The slope is the same as the pitch. Make sure your have a 12 mark on your level.

Before taking any measurements you must first confirm that it s safe to walk on your roof. Position your level against the roof until the bubble of the vial sits between two lines. It is often compared to slope but is not exactly the same. How to calculate roof pitch.

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. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Check the surface of the. This is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares.

How 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 see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. For more complex roofs you may need to calculate it section by. Pitch tan angle where angle is the roof pitch expressed in degrees.

First measure 12 inches from one end of the level and make a mark. You ll need a level that is 12 or longer and a tape measure. For a roof with the ridge above one wall the span is the same as the run. How to determine your roof pitch the easy way step 1.

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. Roof pitch calculator is determined by the number of inches it rises vertically for every 12 inches it extends horizontally. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Take the measurement of the vertical.

Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. Roof pitch calculator results explained 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. The 7 means that the roof rises 7 for every 12 it runs. Some levels have markings already and in this case you are ready.

For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally.