How To Find Square Footage Of A Roof

You will need to express this size in terms of square feet.

How to find square footage of a roof.

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. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Shingles and other roofing materials such as underlayment are typically measured in squares that are 10 feet long and 10 feet wide with each square measuring 100 square feet. Calculate square footage for a roof by measuring and by performing some basic math equations.

When calculating square footage for your roof always add at least 10 percent of the total to account for waste. 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. Use this information if. The first step in a free roofing estimate is measuring the roof dimensions.

Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square. 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. On a multistory house use only the square footage of a single floor. With the area measurement you can learn the approximate cost of a new roof.

Use only the square footage directly covered by the roof. Minor differences in calculations occur based on chimneys and other. 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.