Understanding Roof Pitch

Roof pitch is the rise of the roof over the run of the roof.

Understanding roof pitch.

You ll often hear experts express pitch as x over y. The pitch of your roof is determined by the measurement of the vertical rise by the horizontal run. For example if a roof is 8 feet high and spreads out from the center covering 12 feet in each direction the rise over the run would be 8 12. This implies a rooftop that is 4 inches higher than it was 12 creeps back assessing on a flat plane is a four and twelve rooftop.

The rise is the height of the roof from the base to the top. Mathematically the pitch of a roof is different calculation than roof slope. The term pitch and slope are often used interchangeably which is incorrect. For example given a roof with a rise of 4 feet and a span of 24 feet the pitch is 1 to 6 pitch which can be expressed as the fraction of 1 6.

Roof pitch is indicated by the measure of vertical ascent they ensure for each twelve creeps of horizontal estimation. Simply put roof pitch is the measurement of the angle or the steepness of your roof. A roof that ascents six inches each twelve level inches is depicted as a 6 and 12 roof. The angle or pitch of a roof is calculated by the number of inches it rises vertically for every 12 inches it extends horizontally.

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 1 2. They do not mean the same thing. How to measure roof pitch.