How To Figure Out Square Footage 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.

How to figure out square footage of a roof.

The calculator cannot account for complex shapes based on a measurement of square footage alone. Multiply the square footage of your roof by 1 to get the 10 percent waste allowance. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. With the area measurement you can learn the approximate cost of a new 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. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. The total amount of roofing material you need is 17 300 1 730 19 030 square feet. To conclude the example if your total roofing area is 17 300 square feet your waste allowance would be 17 300 x 1 1 730 square feet.

Use this information if.