How To Calculate Pitch/Slope of your roof
So what does the term 5&12 pitch mean?
The 5 means that for every 12 inches of horizontal run, the roof rises by 5 inches.
Knowing the pitch of your roof is vital to ordering the proper sized gable vents.
To calculate the pitch, all you'll need is an 18- or 24-inch level, a tape measure, and pencil.
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