How To Figure Out Sq Footage Of A Roof

For example take an area made up of a triangle that s 20 feet high and has a base of 40 feet plus a square that s 40 feet by 40 feet.

How to figure out sq footage of a roof. The calculator cannot account for complex shapes based on a measurement of square footage alone. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. This is simply 100 square feet of roof. To find the squares divide the overall roof area by 100 and then round up.

For instance if the roof is 1550 square feet then it is 16 squares. If your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width. A square simply refers to a 10 x 10 square of roofing. 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 by the square footage of a single floor of your house. How to estimate roofing materials. Multiply the number of roofing squares for a low pitch roof by 1 06 to 1 08 to get the square roof area.