Square Feet Formula For Roofing

The top ridge will be shorter than the one of the gable roof but the four hips will add to the ridge length.

Square feet formula for roofing. Build your roof empowers you to select each layer and component that goes into your total protection roofing system so that you get the roof you want to protect your home. The answer is the number of roofing squares for the roof. Multiply the square footage of your roof by 1 to get the 10 percent waste allowance. Calculate or enter the square footage of the attic or area to be vented.

A square simply refers to a 10 x 10 square of roofing. This yields a product called the area which is expressed in square feet or square inches if you are calculating a much smaller space such as a dollhouse. 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. In this overhead view you see both a hip end section and gable ends.

So continuing our example if you ve got a two story house with a total square footage of 2 700 square feet with each floor having 1 350 square feet multiply 1 350 by 1 0541 to get 1 423 square. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. For example if you are buying carpet for a room that is 12 feet long and 10 feet wide. Roof pitches in.

The total amount of roofing material you need is 17 300 1 730 19 030 square feet. To find square feet multiply the length measurement in feet by the width measurement in feet. Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed. Measure your house at ground level then add in the roof s overhang for greater accuracy.

To find the squares divide the overall roof area by 100 and then round up. This nominal square footage amount is then multiplied by a factor associated with the roof s pitch. The calculator cannot account for complex shapes based on a measurement of square footage alone. The only difference in this calculation to the one for a gable roof area is the amount of the ridge.

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. Convert the area to roofing squares. The square footage of a hip roof area is identical to the square footage of a gable roof of the same size. This is simply 100 square feet of roof.

L 30 feet h 12 feet 30 12 2 180 square feet.