Estimate Square Footage Of A Roof

Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.

Estimate square footage of a roof.

Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure. 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. A x b 120 x 100 12 000 sq. If you are replacing your current roof add 125 to 500 per roofing square for old roof removal.

So multiply length a x. Next find the square footage of the metal roofing panels you want to use. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Although roofing projects are estimated and sold by the square.

Simply measure length a x width b. For instance if the roof is 1550 square feet then it is 16 squares. Finally calculate your roof s total square footage by simply adding the square footage of each of the planes together. The total amount of roofing material you need is 17 300 1 730 19 030 square feet.

The first step in a free roofing estimate is measuring the roof dimensions. 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. A square simply refers to a 10 x 10 square of roofing. You will need to express this size in terms of square feet.

This is simply 100 square feet of roof. Multiply the footprint square footage by the multiplier for your roof pitch to find the actual square footage of the roof. 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. This gable roof has two planes.

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. To find the squares divide the overall roof area by 100 and then round up. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. For the total square footage of the roof.

Multiply the square footage of your roof by 1 to get the 10 percent waste allowance. Use our roof pitch calculator to find the pitch of your roof. Roofing cost per square foot. The calculator cannot account for complex shapes based on a measurement of square footage alone.

Measure the length and width in feet then multiply together to find the square footage. The answer is the number of roofing squares for the roof. Estimate the pitch of the roof.