Finding The Square Footage Of A Roof

Determining the square footage of these sections is easy.

Finding the square footage of a roof.

How to calculate square footage for rectangular round and bordered areas. Multiply the square footage of your roof by 1 to get the 10 percent waste allowance. Then add 10 to the number to account for waste. Make a note of the square footage of each square or rectangular section on your diagram.

The calculator cannot account for complex shapes based on a measurement of square footage alone. To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof. Calculate project cost based on price per square foot square yard or square meter. 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.

If a section is 120 feet 37 m x 100 feet 30 m its total square footage would be 12 000 square feet 1 100 m 2. Use this information if. 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 you re thinking of reroofing the house yourself and want an estimate for how much roofing material you.

Just multiply the length and width dimensions. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

Enter measurements in us or metric units. With the area measurement you can learn the approximate cost of a new roof. The total amount of roofing material you need is 17 300 1 730 19 030 square feet. Calculate square footage for a roof by measuring and by performing some basic math equations.

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. Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square. Calculate square feet meters yards and acres for flooring carpet or tiling projects.