Calculating Square Foot Of A Roof

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

Calculating square foot of a roof.

Use our roof pitch calculator to find the pitch of your roof. How to estimate roofing materials. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.

Estimate the pitch of the roof. For example take an area made up of a triangle that s 20 feet high and has a base of 40 feet plus a square that s 40 feet by 40 feet. 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. A square simply refers to a 10 x 10 square of roofing.

Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the roofing. Next find the square footage of the metal roofing panels you want to use. 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.

1 acre 43 560 square foot 1 square yard 9 square foot 1 square meter 10 76 square foot 1 square inch 0 00064516 square foot calculating cost per square foot. Divide any irregularly shaped areas of the roof into more manageable triangles and rectangles then calculate square footage for those individual elements and add them to get the total square footage. To find the squares divide the overall roof area by 100 and then round up. 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.

The top ridge will be shorter than the one of the gable roof but the four hips will add. Calculate the square footage area of a hip roof. The answer is the number of roofing squares for the roof. For instance if the roof is 1550 square feet then it is 16 squares.

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. When painting a house installing flooring or building a home the square footage of the property is often used to determine cost or materials to be used. Measure the length and width in feet then multiply together to find the square footage. The calculator cannot account for complex shapes based on a measurement of square footage alone.

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.