Square Footage Of A Roof Square

To determine the number of squares on the gable roof example in this post divide its total of 24 000 square feet by 100 24 000 100 240.

Square footage of a roof square.

Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. The calculator cannot account for complex shapes based on a measurement of square footage alone. Steps to measuring roof square footage prepare. A roofing square is equal to 100 square feet of the roof.

Wear shoes boots with proper traction. The result is 240 and this means you would need 240 squares of shingles to cover that roof. 1 roofing square 100 square feet. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

If your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width. 10 feet x 10 feet 100 square feet or 1 roofing square 5 feet x 20 feet 100 square feet or 1 roofing square. The term roofing square and roof pitch are the most commonly used terms in the roofing industry. To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100.

Calculate each plane separately. Estimate the pitch of the roof. Cecil venturella march 3. Take away overhangs and of course the ratio can go as low as 1 0.

It does not matter how you arrive at 100 square feet. How to calculate square feet of a roof step 1. Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100. Measure the length and width of every roof plane or surface.

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. Multiply the length and width of each square or rectangle shaped plane. Just those two examples give you a range of from 1 3 times footprint square footage to almost 2 times for a one story house. Be careful walking around so.

This means you would need 240 squares of shingles to cover that roof. Change the 2000sf dimensions to 45x44 4 feet with ridge along the 45 dimension you get 51x50 4 roof plan footage 2570 sf flat or 3635 at 12 12 slope. Use a tape measure to note the length and width of your roof including dormers. 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.

Include dormers the small outjuttings over attic.