How To Find House Roof Pitch

Roofing terminology used to describe roof pitch or slope include 7 12 7 12 7 to 12 7 and 12 7 on 12.

How to find house roof pitch.

The underside of a rafter in the attic. A barge rafter at the side of the gable step 2 position a level against the underside of the rafter. Measure the rise of your roof. Pitch rise run 1 5 6 25.

Before taking any measurements you must first confirm that it s safe to walk on your roof. Measuring from the underside of the roof is usually the most accurate way to find the slope since there is no roofing material to make an uneven surface. Enter any angle or fraction of angle to find pitch. 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.

In most cases the angle of inclination is chosen in the range from 11 to 45 but other values are encountered. Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m. Step 1 access a rafter. Enter any pitch or fraction of pitch to find angle.

You ll need a level that is 12 or longer and a tape measure. Calculate the rafter length substituting these values into the following formula. Take the measurement of the vertical. Any of the following will give you a good measurement 1 x research source a rafter in the attic.

The underside of a rafter on a overhang at the bottom of the roof 3. Let s say it is equal to 1 5 m. First measure 12 inches from one end of the level and make a mark. Calculate the roof pitch as the proportion of rise and run.

Take a measurement of 12 inches using a level. This is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations. 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. Position your level against the roof until the bubble of the vial sits between two lines.

One method to find the pitch is to climb on the roof and measure the rise for a 12 run. Place one end of a carpenter s level against the underside of the. This is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. The overhang of a rafter at the end of the 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.