How To Figure Sq Ft Of Roof

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

How to figure sq ft of roof.

A square simply refers to a 10 x 10 square of roofing. You will need to express this size in terms of square feet. Calculate square feet meters yards and acres for flooring carpet or tiling projects. If you have valleys and or dormers you will need to measure and calculate those by adding their sq.

To accurately calculate the area of your roof you must first determine its slope or pitch. 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. The total amount of roofing material you need is 17 300 1 730 19 030 square feet. Multiply the square footage of your roof by 1 to get the 10 percent waste allowance.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. You will need to measure the length and height of you roof to calculate how many bundles you need to purchase. The calculator cannot account for complex shapes based on a measurement of square footage alone. How to calculate square footage for rectangular round and bordered areas.

Enter square footage calculate or enter the square footage of the attic or area to be vented. 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. Of the rest of the roof. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.

Convert the area to roofing squares. Your roof line is not going to be the same as the square footage in your home. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Calculate project cost based on price per square foot square yard or square meter.

To find the squares divide the overall roof area by 100 and then round up. The first step in a free roofing estimate is measuring the roof dimensions. The answer is the number of roofing squares for the roof. 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.

This is simply 100 square feet of roof. 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. Enter measurements in us or metric units.