Square Footage For Roofing Shingles

For instance if the roof is 1550 square feet then it is 16 squares.

Square footage for roofing shingles.

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. For example this shed roof has one roof plane. For example a very steep roof on a 1 000 square foot attic will need more shingles than a lower sloped roof on the same sized attic. Your roofer will know that steeper roofs use more shingles than lower sloped roofs for the same house size and there are established slope multiplier factors to make this calculation simple see table below.

For the total square footage of the roof. The most common roofing materials used in the united states include shingles membrane roofing and ceramic tile all of which have different life spans. Find the total square footage of your roof by multiplying the width by the length and then divide that number by 100 and you will get the number of squares you need to cover. This gable roof has two planes.

Each square will need three bundles of shingles to cover it. A x b 120 x 100 12 000 sq. Finally calculate your roof s total square footage by simply adding the square footage of each of the planes together. Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last.

Although roofing projects are estimated and sold by the square. The calculator cannot account for complex shapes based on a measurement of square footage alone. Simply measure length a x width b. A square simply refers to a 10 x 10 square of roofing.

To find the squares divide the overall roof area by 100 and then round up. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.