Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed.
How to get sq ft of roof.
According to the united states census the average roof is 17 squares or about 1 700 square feet.
A square simply refers to a 10 x 10 square of roofing.
How to calculate square footage for rectangular round and bordered areas.
This nominal square footage amount is then multiplied by a factor associated with the roof s pitch.
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.
Roofing material is estimated by the square which is equal to 100 square feet.
Roof pitches in degrees.
Calculate square feet meters yards and acres for flooring carpet or tiling projects.
Calculate square footage square meters square yardage and acres for home or construction project.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
The total amount of roofing material you need is 17 300 1 730 19 030 square feet.
As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house.
Multiply the square footage of your roof by 1 to get the 10 percent waste allowance.
Your roof is without a doubt one of the most important elements of your home.
For example assume you are trying to buy flooring for a rectangular room with a nook.
Roofing cost per square foot.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Calculate project cost based on price per square foot square yard or square meter.
Many homes have an asphalt shingle roof but some have wood metal tile and slate which can be more expensive.
Find the length and width of each section labeled a and b here then calculate each square footage.
This is simply 100 square feet of roof.
When calculating roofing costs per square asphalt shingles run from 350 and 500 per square metal or tin roofs costs 600 to 1 200 per square and concrete or clay costs between 1 200 and 1 800 per.
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.
Add the calculations together to get the total square footage.
To conclude the example if your total roofing area is 17 300 square feet your waste allowance would be 17 300 x 1 1 730 square feet.
The average roof is 3 000 square feet or around 30 squares.