Figure Out Sq Ft Of Roof

A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.

Figure out sq ft of roof.

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. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. This is simply 100 square feet of roof. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.

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 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. Convert the area to roofing squares. 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.

Multiply the square footage of your roof by 1 to get the 10 percent waste allowance. 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. The total amount of roofing material you need is 17 300 1 730 19 030 square feet. The calculator cannot account for complex shapes based on a measurement of square footage alone.

To accurately calculate the area of your roof you must first determine its slope or pitch. Enter square footage calculate or enter the square footage of the attic or area to be vented. To find the squares divide the overall roof area by 100 and then round up. However shingles are packaged in a way that they are light enough for the average person to carry around.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. A square simply refers to a 10 x 10 square of roofing. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.