Estimate Square Footage Of A Roof

The total amount of roofing material you need is 17 300 1 730 19 030 square feet.

Estimate square footage of a roof.

A x b 120 x 100 12 000 sq. Finally calculate your roof s total square footage by simply adding the square footage of each of the planes together. The calculator cannot account for complex shapes based on a measurement of square footage alone. The answer is the number of roofing squares for the roof.

Roofing cost per square foot. 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. For instance if the roof is 1550 square feet then it is 16 squares.

The first step in a free roofing estimate is measuring the roof dimensions. Estimate the pitch of the roof. So multiply length a x. 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. For example this shed roof has one roof plane. You will need to express this size in terms of square feet. 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. Measure the length and width in feet then multiply together to find the square footage. For the total square footage of the roof. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.

Although roofing projects are estimated and sold by the square. When calculating roofing costs per square asphalt shingles run from 350 and 500 per square metal or tin roofs costs 600 to 1 200 per square and concrete or clay costs between 1 200 and 1 800 per square. 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. Next find the square footage of the metal roofing panels you want to use.

Multiply the footprint square footage by the multiplier for your roof pitch to find the actual square footage of the roof. This is simply 100 square feet of roof. Simply measure length a x width b. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.

To find the squares divide the overall roof area by 100 and then round up. 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. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.