Figuring Roof Square Footage

Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.

Figuring roof 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. 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. Calculate the square footage area of a hip roof. With the area measurement you can learn the approximate cost of a new roof.

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. The square footage of a hip roof area is identical to the square footage of a gable roof of the same size. Next you will need to use a roofing materials calculator. When calculating square footage for your roof always add at least 10 percent of the total to account for waste.

The top ridge will be shorter than the one of the gable roof but the four hips will add. Check that your footage measurements are within this range so you can start off on the right foot. 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.