How Do You Figure Square Footage Of A Roof

Measure the length and width of every roof plane or surface.

How do you figure square footage of a roof.

Roof pitch is measured by rise run. Convert the area to roofing squares. 1 300 x 1 05 1 365 square feet calculating the area true if you want to get the exact area measurement for your roof you can follow these steps. This would yield 1 3 next square your result.

The run always remains constant at 12 inches. Include dormers the small outjuttings over attic windows. The distance from the top of a stud wall to the peak of the roof. Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.

Calculate each plane separately. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. The calculator cannot account for complex shapes based on a measurement of square footage alone. Because each 100 square feet of roof is one roofing square divide.

How to calculate square feet of a roof. In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area. Multiply this number by your most recent result to get the estimated square footage of your roof. Once you have your roof s pitch divide the number by 12.

Multiply the length and width of each square or rectangle shaped plane. For example if your roof s pitch is 4 in 12 you would divide 4 by 12. The distance from the outside edge of a perimeter stud wall to the center of the house.