How To Work Out Your Roof Pitch

Calculate the rafter length substituting these values into the following formula.

How to work out your roof pitch.

Check the surface of the. One method to find the pitch is to climb on the roof and measure the rise for a 12 run. For more complex roofs you may need to calculate it section by. Let s say it is equal to 1 5 m.

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. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. The slope is the same as the pitch.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. You ll need a level that is 12 or longer and a tape measure. First measure 12 inches from one end of the level and make a mark. For many people working out the roof pitch angles can be a bit of a nightmare especially if you are going to do it yourself and try to manage it all on your own.

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. Pitch rise run 1 5 6 25. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. Naturally this does not go down particularly well without the right tools knowledge and assistance.

Calculate the roof pitch as the proportion of rise and run. Take the measurement of the vertical. Take a measurement of 12 inches using a level. This is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares.

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