There are two main categories of roofing.
Calculating square footage of sloped roof.
Conventional slope roof range between 4 in 12 and 8 in 12.
The roof shingle calculator is a free estimator that serves a useful purpose during any roof repair or replacement project.
A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof.
The run always remains constant at 12 inches.
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.
Most roof s have a pitch in the 4 12 to 9 12 range.
Common roof pitches and equivalent grade degree and radian angles.
The most precise way to find the roof s slope is by measuring it from the underside.
Measuring the slope from the rafters.
Calculate project cost based on price per square foot square yard or square meter.
Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the roofing.
Roof slope style.
Calculate square footage square meters square yardage and acres for home or construction project.
Access one of the rafters then take the measurement this way.
Either way let s see how you can calculate the slope of a roof without using a roof slope calculator.
Calculate square feet meters yards and acres for flooring carpet or tiling projects.
How to calculate square footage for rectangular round and bordered areas.
So continuing our example if you ve got a two story house with a total square footage of 2 700 square feet with each floor having 1 350 square feet multiply 1 350 by 1 0541 to get 1 423 square.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
Once you enter the basic roof dimensions and enter the type of roof you will get a very accurate result telling you exactly the amount of shingles that are required to cover your new roof.
For example if you have a two story home that s 2 600 square feet one floor would be 1 300 square feet multiply this number by your most recent result to get the estimated square footage of your roof.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
A low slope roof is anywhere from 2 in 12 to 4 in 12.
A flat roof has a slope of 2 in 12 or less.
Determine the square footage of one floor of your home.
That is the roof s rise.
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.
Learn more about finding the angle of a line using our slope calculator.