How To Find House Roof Pitch

Enter any angle or fraction of angle to find pitch.

How to find house roof pitch.

Place one end of a carpenter s level against the underside of the. The underside of a rafter on a overhang at the bottom of the roof 3. Pitch rise run 1 5 6 25. Check the surface of the.

Take a measurement of 12 inches using a level. Measure the rise of your roof. Take the measurement of the vertical. 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.

Let s say it is equal to 1 5 m. Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m. Any of the following will give you a good measurement 1 x research source a rafter in the attic. One method to find the pitch is to climb on the roof and measure the rise for a 12 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. Main methods of calculating roof pitch calculation of the slope of the roof is an important part of the design process of its construction. Position your level against the roof until the bubble of the vial sits between two lines. Roofing terminology used to describe roof pitch or slope include 7 12 7 12 7 to 12 7 and 12 7 on 12.

This is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. This is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations. 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. You ll need a level that is 12 or longer and a tape measure.

Before taking any measurements you must first confirm that it s safe to walk on your roof. The underside of a rafter in the attic. Calculate the rafter length substituting these values into the following formula. Calculate the roof pitch as the proportion of rise and run.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Step 1 access a rafter. First measure 12 inches from one end of the level and make a mark. A barge rafter at the side of the gable step 2 position a level against the underside of the rafter.

In most cases the angle of inclination is chosen in the range from 11 to 45 but other values are encountered.