Roof Multi Plier

And for a roof with a slope of 6 12 that number 1 118 is your roof slope multiplier.

Roof multi plier.

That gives you 5 590 square feet which is the actual area of the surface of the roof. And that s the number you were looking for. 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. 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.

Take the area of the roof s footprint say it s 5 000 square feet and multiply 5 000 by 1 118. The roof pitch multiplier is responsible for giving an accurate pitch measurement of the roof. But is a big help and save a lot of time because you realy have the tool what you need especial when you aré on the roof on steep leader u ser a kitchen sink etc etc sorry for my english. The maths behind this number is that it is the square root of rise run 2 1.

A 2 b 2 c 2 where a is the rise of the roof b is the run of the roof and c is the rafter hypotenuse of the triangle with side lengths a and b. 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. Now solving for c in the equation above gives.