Roof Area Multiplier

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

Roof area multiplier.

Determine how many square feet of roof area a building has by measuring from the ground. That gives you 5 590 square feet which is the actual area of the surface of the roof. 8 inches and you have an 8 in 12 pitch. Now you re ready to price out the materials.

Or just enter your numbers into this roof pitch degrees. This makes measuring easier knowing that you are able to get the exact measurement of roofs by merely standing on the ground. For multi pitched roofs simply add the areas of all common pitches together by toggling layer visibility from the summed layer identified by the eye symbol at the left of the layers control. 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.

Determine how many square feet of roof area a building has by measuring blueprints or plans. The roof pitch multiplier is responsible for giving an accurate pitch measurement of the roof. And that s the number you were looking for. If this distance measures 4 inches you have a 4 in 12 pitch.

Take the area of the roof s footprint say it s 5 000 square feet and multiply 5 000 by 1 118. 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.