Calculating Square Footage Of A Roof

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.

Calculating square footage of a roof. Calculate project cost based on price per square foot square yard or square meter. The square footage of a hip roof area is identical to the square footage of a gable roof of the same size. Minor differences in calculations occur based on chimneys and other. Use our roof pitch calculator to find the pitch of your roof.

When calculating square footage for your roof always add at least 10 percent of the total to account for waste. Measure the length and width in feet then multiply together to find the square footage. Calculate the square footage area of a hip 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.

Next find the square footage of the metal roofing panels you want to use. How to calculate square footage for rectangular round and bordered areas. The top ridge will be shorter than the one of the gable roof but the four hips will add. On a multistory house use only the square footage of a single floor.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Calculate square footage square meters square yardage and acres for home or construction project. 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. Use only the square footage directly covered by the roof.

Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. 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. Enter measurements in us or metric units. Calculate or enter the square footage of the attic or area to be vented.

Multiply the footprint square footage by the multiplier for your roof pitch to find the actual square footage of the roof. The only difference in this calculation to the one for a gable roof area is the amount of the ridge. The calculator cannot account for complex shapes based on a measurement of square footage alone.