How To Figure Out Square Feet Of A Roof

This nominal square footage amount is then multiplied by a factor associated with the roof s pitch.

How to figure out square feet of a roof.

Your roof is without a doubt one of the most important elements of your home. 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. 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. The total amount of roofing material you need is 17 300 1 730 19 030 square feet.

Calculate project cost based on price per square foot square yard or square meter. 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. How to calculate square footage for rectangular round and bordered areas.

Roof pitches in degrees. 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. Enter measurements in us or metric units. As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house.

Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square. 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. Multiply the square footage of your roof by 1 to get the 10 percent waste allowance.

You will need to express this size in terms of square feet. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. The first step in a free roofing estimate is measuring the roof dimensions. Convert the area to roofing squares.

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.