Measure Roof Square Footage

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

Measure roof square footage. Multiply the number of roofing squares for a medium pitch roof by 1 12 to 1 25 or by 1 3 to 1 42 for a high pitch roof to get the square roof area. Once the digital property is complete you will receive detailed exterior measurements and an interactive 3d model to help homeowners design their projects. 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. 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.

Once you ve measured the building s walls estimate the length of the overhangs on either side if your roof has them. The calculator cannot account for complex shapes based on a measurement of square footage alone. The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials. 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.

Before you do any roofing work you must calculate the roof s square footage to determine how much material you need. Along with the roof s pitch you ll use these 2 dimensions to calculate the roof s overall square footage. From the diagrams there are two intersecting roofs measuring 114 feet and 30 feet at the eaves with equal rake of 18 feet. Just snap a few photos of the exterior of the house with the hover app and our patented technology will take it from there.

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. This is a rather complicated way to estimate a roof area and hardly suited to the diy fans. 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. Our patented technology calculates square footage and linear measurements for the roof siding windows trim and more.

Things you will need steel tape measure.