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.
Estimate the pitch of the roof.
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.
To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100.
Take away overhangs and of course the ratio can go as low as 1 0.
Include dormers the small outjuttings over attic.
The answer is the number of roofing squares for the 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.
Steps to measuring roof square footage prepare.
1 roofing square 100 square feet.
This means you would need 240 squares of shingles to cover that roof.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
Wear shoes boots with proper traction.
A roofing square is equal to 100 square feet of the roof.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
It does not matter how you arrive at 100 square feet.
Multiply the length and width of each square or rectangle shaped plane.
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.
The term roofing square and roof pitch are the most commonly used terms in the roofing industry.
Be careful walking around so.
The result is 240 and this means you would need 240 squares of shingles to cover that roof.
Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.
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.
How to calculate square feet of a roof step 1.
Cecil venturella march 3.
Use a tape measure to note the length and width of your roof including dormers.
Measure the length and width of every roof plane or surface.
For your safety use a sturdy reliable ladder and secure to your roof.
Calculate each plane separately.