Figure Out Sq Ft Of Roof

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

Figure out sq ft of roof.

Enter square footage calculate or enter the square footage of the attic or area to be vented. To accurately calculate the area of your roof you must first determine its slope or pitch. 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. 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.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. 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. Multiply the square footage of your roof by 1 to get the 10 percent waste allowance. To find the squares divide the overall roof area by 100 and then round up.

Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. The total amount of roofing material you need is 17 300 1 730 19 030 square feet. Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed. A square simply refers to a 10 x 10 square of roofing.

To conclude the example if your total roofing area is 17 300 square feet your waste allowance would be 17 300 x 1 1 730 square feet. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. The best part of a roofing calculator is that it offers a free insight into the total cost of the replacement roof project on a sq ft basis. As you begin to calculate various costs you will see that the cost is a result of the interplay of many different variables including roof area in terms of footage measurement of any roof extras like.

The calculator cannot account for complex shapes based on a measurement of square footage alone. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. However shingles are packaged in a way that they are light enough for the average person to carry around. This is simply 100 square feet of roof.