Estimate Roof Square Feet

The calculator cannot account for complex shapes based on a measurement of square footage alone.

Estimate roof square feet.

The first step in a free roofing estimate is measuring the roof dimensions. Estimate the pitch of the roof. The answer is the number of roofing squares for the roof. How to estimate roofing materials.

Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square. Roofing material is estimated by the square which is equal to 100 square feet. To find the squares divide the overall roof area by 100 and then round up. Your roof is without a doubt one of the most important elements of your home.

It will display 3 figures. Costs can vary widely depending on how complex your roofing structure is type of roofing material overall slope number. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. 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.

You can use the roofing calculator below to get a rough estimate of roofing costs per square foot depending on the type of roofing material. This is simply 100 square feet of roof. For instance if the roof is 1550 square feet then it is 16 squares. A square simply refers to a 10 x 10 square of roofing.

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. Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive. Low average and high figures for the estimator tool. To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof.

As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house. The average roof is 3 000 square feet or around 30 squares. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. 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.

For estimating purposes we also assume that there is a chimney a couple of dormers and two layers of old shingles that need to be torn off and removed before a new roof. Roof pitches in degrees. This nominal square footage amount is then multiplied by a factor associated with the roof s pitch.