Calculating Square Footage Of A Roof

Use only the square footage directly covered by the roof.

Calculating square footage of a roof.

Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. When calculating square footage for your roof always add at least 10 percent of the total to account for waste. 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.

The square footage of a hip roof area is identical to the square footage of a gable roof of the same size. On a multistory house use only the square footage of a single floor. Calculate or enter the square footage of the attic or area to be vented. The calculator cannot account for complex shapes based on a measurement of square footage alone.

Calculate square footage square meters square yardage and acres for home or construction project. Enter measurements in us or metric units. The top ridge will be shorter than the one of the gable roof but the four hips will add. 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.

Minor differences in calculations occur based on chimneys and other. The only difference in this calculation to the one for a gable roof area is the amount of the ridge. Next find the square footage of the metal roofing panels you want to use. Calculate square feet meters yards and acres for flooring carpet or tiling projects.

The area calculator can be used to calculate the area of a variety of simple shapes that together can comprise the area of the roof. How to calculate square footage for rectangular round and bordered areas. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. Calculate the square footage area of a hip 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. Measure the length and width in feet then multiply together to find the square footage. 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.