How Do You Figure Square Footage Of A Roof

The run always remains constant at 12 inches.

How do you figure square footage of a roof.

The calculator cannot account for complex shapes based on a measurement of square footage alone. Measure the ground dimensions of the house using a tape measure and write down these dimensions. Include dormers the small outjuttings over attic windows. Convert the area to roofing squares.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Multiply the length by the width to arrive at. 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.

Roof pitch is measured by rise run. The distance from the top of a stud wall to the peak of the roof. How do you calculate square footage for a roof. Multiply the length and width of each square or rectangle shaped plane.

Once you have your roof s pitch divide the number by 12. 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. Because each 100 square feet of roof is one roofing square divide.

Calculate each plane separately. This would yield 1 3 next square your result. Multiply this number by your most recent result to get the estimated square footage of your roof.