You can consult the following chart to discover the slope factor and hip valley factor.
Roof area conversion factors.
The headache of using pythagoras and trigonometry can be spared by making use of these charts.
A 10 slope roof should not be confused with a 10 pitch roof as a 10 slope roof means that the roof rises by ten inches for every foot of run.
For roof slopes expressed as x in 12 rise in run the roof pitch multiplier is determined by finding the square root of rise run 1.
Feet the area of a hip roof equals the area of a gable roof with the same dimensions.
Download the slope chart pdf.
A roof pitch multiplier also called a roof pitch factor is a number that is multiplied by the area covered by a sloped roof to produce the area of the actual surface of the roof.
Take your area result and multiply it by the pitch multiplier or slope correction factor found in the table above to arrive at the roof s surface area.
Now you re ready to price out the materials.
The roof slope factor chart also consists of conversion factors to determine the slope of the roof.
When outfitting your residential or commercial structure with products from everlast roofing it s important to know the incline or pitch of your roof.