Formula For Square Footage Of A Roof

Multiply this number by your most recent result to get the estimated square footage of your roof.

Formula for square footage of a roof.

To find the squares divide the overall roof area by 100 and then round up. The only difference in this calculation to the one for a gable roof area is the amount of the ridge. Build your roof empowers you to select each layer and component that goes into your total protection roofing system so that you get the roof you want to protect your home. 1 300 x 1 05 1 365 square feet calculating the area true if you want to get the exact area measurement for your roof you can follow these steps.

The top ridge will be shorter than the one of the gable roof but the four hips will add to the ridge length. The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. The answer is the number of roofing squares for the roof.

Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed. Convert the area to roofing squares. A square simply refers to a 10 x 10 square of roofing. The square footage of a hip roof area is identical to the square footage of a gable roof of the same size.

This is simply 100 square feet of roof. Calculate or enter the square footage of the attic or area to be vented. Once you have your roof s pitch divide the number by 12. The calculator cannot account for complex shapes based on a measurement of square footage alone.

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. 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. 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 1 350 square feet multiply 1 350 by 1 0541 to get 1 423 square. From the diagrams there are two intersecting roofs measuring 114 feet and 30 feet at the eaves with equal rake of 18 feet.

The result is the total square footage of your roof. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.