How Do You Figure Square Footage Of A Roof

Calculate each plane separately.

How do you figure square footage of a roof.

Include dormers the small outjuttings over attic windows. The distance from the top of a stud wall to the peak of the roof. 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 the length and width of each square or rectangle shaped plane. Measure the length and width of every roof plane or surface. 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. Measure the ground dimensions of the house using a tape measure and write down these dimensions.

The run always remains constant at 12 inches. Multiply the length by the width to arrive at. The calculator cannot account for complex shapes based on a measurement of square footage alone. Multiply this number by your most recent result to get the estimated square footage of your roof.

For example if your roof s pitch is 4 in 12 you would divide 4 by 12. Once you have your roof s pitch divide the number by 12. Convert the area to roofing squares. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

How do you calculate square footage for a roof. Roof pitch is measured by rise run. This would yield 1 3 next square your result.