11 Best Of How To Read Roof Pitch Best Resolution Image. The roof below is drawn in 18 scale This means that if using a regular tape measure that 1 inch would equal 8 feet. For example a roof that rises 6 inches for every 12 inches of horizontal run has a 6-in-12 pitch.
A 12 to 24 pitch is expressed as 12. The smallest pitch of a roof is 1412 which translates to 14 inch rise to 12 inches of run. Read the pitch on the side of the speed square.
Roof slope calculator - example of use.
Beside above what is a good roof pitch. Read the pitch on the side of the speed square. Adjust the square until the level is level. 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.