How To Figure Out Sq Footage Of A Roof

The calculator cannot account for complex shapes based on a measurement of square footage alone.

How to figure out sq footage of a roof.

Divide any irregularly shaped areas of the roof into more manageable triangles and rectangles then calculate square footage for those individual elements and add them to get the total square footage. 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. Multiply the number of roofing squares for a medium pitch roof by 1 12 to 1 25 or by 1 3. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.

Multiply the number of roofing squares for a low pitch roof by 1 06 to 1 08 to get the square roof area. To find the squares divide the overall roof area by 100 and then round up. So continuing our example if you ve got a two story house with a total square footage of 2 700 square feet with each floor having. Multiply by the square footage of a single floor of your house.

A square simply refers to a 10 x 10 square of roofing. This is simply 100 square feet of 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.