How To Estimate Roofing Squares

Convert the area to roofing squares.

How to estimate roofing squares.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. The length l times the height h of a triangle is twice its area a2. So if you divide your answer of a product of length times height by two you will get the area of a triangle.

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. It is often compared to slope but is not exactly the same. This is simply 100 square feet of roof.

Then add 10 to the number to account for waste. How to estimate roofing materials. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. For instance if the roof is 1550 square feet then it is 16 squares.

Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments. A square simply refers to a 10 x 10 square of roofing. 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. The answer is the number of roofing squares for the roof.

To find the squares divide the overall roof area by 100 and then round up. Outside of the u s a degree angle is typically used. 1 roof square 100 square feet.