A roof pitch multiplier also known as a roof pitch factor is a number that when multiplied by the area covered by a sloped roof gives the actual area of the roof.
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A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance.
The maths behind this number is that it is the square root of rise run 2 1.
Certain roof styles are appropriate for different climates or snow loads.
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Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the 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.
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Other roofs do well in areas that get a lot of rain.
Consequently many factors and constraints can drive a designer s choice for roof style.
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Simply put it s a shallow roof.
A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof.
Most roof s have a pitch in the 4 12 to 9 12 range.