1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Calculating square footage of sloped roof.
The answer is the number of roofing squares for the roof.
If your number is 1 3.
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.
After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.
If the same house had a central roof ridge dividing the roof into two sloping areas each would cover 300 square feet or half the house.
Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the roofing.
Add 1 then take the square root.
For example if your roof s pitch is 4 in 12 you would.
To find the squares divide the overall roof area by 100 and then round up.
Square the result of step 1.
Roof pitch calculator roof slope calculator the roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need.
Roof pitch is given as the number of inches in height change over the distance of one foot.
Once you have your roof s pitch divide the number by 12.
When calculating square footage for your roof always add at least 10 percent of the total to account for waste.
This is simply 100 square feet of roof.
Straight to the answer divide your roof pitch by 12.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
Shingles and other roofing materials such as underlayment are typically measured in squares that are 10 feet long and 10 feet wide with each square measuring 100 square feet.
Estimate the pitch of the roof.
Adding 1 gives us 1 1 9 10 9.
If you don t want to do a lot of measuring you can use your pitch calculation to get an estimated square footage of your roof.
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 result is the area covered by the sloping roof.
The area calculator can be used to calculate the area of a variety of simple shapes that together can comprise the area of the roof.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
So keeping with our roof pitch of 4 this gives us 1 9.
Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.
Next square your result.
