Each square will need three bundles of shingles to cover it.
How many sq ft in a roofing square.
Multiply the square footage of your roof by 1 to get the 10 percent waste allowance.
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.
Link to your exact conversion.
How to estimate roofing materials.
Find the total square footage of your roof by multiplying the width by the length and then divide that number by 100 and you will get the number of squares you need to cover.
Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.
1 roofing square 9 290304 m 3.
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.
Using an international foot of exactly 0 3048 meters length.
Outside of the u s a degree angle is typically used.
In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.
10 feet by 10 feet 100 square feet.
1 roofing square 9 290304 m 3.
The square footage of a roof is normally measured in squares of 100 feet.
To find the squares divide the overall roof area by 100 and then round up.
5 feet x 20 feet 100 square feet or 1 roofing square.
1 roofing square 100 square feet.
1 ft x 1 ft.
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.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
It does not matter how you arrive at 100 square feet.
A square simply refers to a 10 x 10 square of roofing.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
This is simply 100 square feet of roof.
Estimate the pitch of the roof.
For instance if the roof is 1550 square feet then it is 16 squares.
1 ft x 1 ft.
10 feet x 10 feet 100 square feet or 1 roofing square.
Using an international foot of exactly 0 3048 meters length.
The total amount of roofing material you need is 17 300 1 730 19 030 square feet.
It is often compared to slope but is not exactly the same.
100 square feet 1 roofing square 9 290304 cubic meters si unit.
The answer is the number of roofing squares for the roof.