How Do You Figure Out The Pitch Of A Roof

First measure 12 inches from one end of the level and make a mark.

How do you figure out the pitch of a roof.

Before you calculate roof pitch you ll need to measure the slope of your roof. This free roof pitch calculator will take your roof width see the picture and rise the height of the roof and will calculate the roof pitch both as numeric value. One method to find the pitch is to climb on the roof and measure the rise for a 12 run. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.

The 7 means that the roof rises 7 for every 12 it runs. You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. If you want to find the roof pitch in the form of x 12 simply calculate the pitch and substitute 12 for the run length. Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

If you can t get to your attic you can measure slope on your rooftop as long as it s safe to go up there. Roof pitch refers to the slope which the rafter creates. You ll need a level that is 12 or longer and a tape measure. Pitch tan angle where angle is the roof pitch expressed in degrees.

Also referred to as roof slope or roof slant so what does the 7 12 in the example to the right mean. 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. Even if you want to use a flat roof pitch calculator system you will be able to find one. Here s an easy safe way to determine the pitch from inside your attic.

Roof pitch calculator is determined by the number of inches it rises vertically for every 12 inches it extends horizontally. The value displayed as the rise will be your x. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. The roof pitch measures the steepness of your shed roof and typically takes values from 1 to 12.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. The easiest way to do this is by accessing a rafter in your attic if you can. If your roof pitch is greater than 3 your roof is considered pitched read more about roof pitch at wikipedia. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.