It can be assessed in two ways either as the angle the rafter makes with the horizontal or the proportion between the rise and the run of the roof.
Proper way to write the pitch of a roof.
Roof pitch is often expressed as a ratio between rise and run in the form of x 12.
Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level.
Express roof pitch as the ratio of the amount of the vertical rise of a roof or rise over the corresponding horizontal distance or run you write the pitch assuming a run of 12 inches thus the ratio would describe how much a roof rises for each foot of the run.
That is to say the roof pitch expressed as a ratio tells you how many inches the roof rises for every 12 inches of depth.
As aforementioned there is no standard pitch of a roof.
Here s an easy safe way to determine the pitch from inside your attic.
Proper construction of the roof provides waterproofing and wind resistance.
Roof pitch is simply the slopecreated by the rafter.
Or the colon can replace the slash as in 2 12 or 7 12.
The pitch of a roof is its vertical rise over its horizontal span.
However most often a ratio of pitch also fraction is slang used for the more useful slope of rise over run of just one side half the span of a dual pitched roof.
How to measure a roof s pitch.
Keep in mind that pitch will determine the material required to meet florida building code as well as the material quantities needed.
To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.
It requires the proper calculation of the angle of the roof pitch.
The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.
First measure 12 inches from one end of the level and make a mark.
Pitch is the term used to describe the angle slope or slant of your roof.
Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.
So let s say a roof rises 6 inches for every 12 inches in depth towards the peak.
The pitch of your roof is determined by the measurement of the vertical rise by the horizontal run.
Roof pitch designations are comprised of two numbers indicating a ratio.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.
To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page.