There are several factors to keep in mind for any estimate.
How to find how many squares on a roof.
A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.
It takes a square of shingles to cover 100 sq.
The answer is the number of roofing squares for the roof.
A square represents 100 square feet of area covered by shingles.
The result is 240 and this means you would need 240 squares of shingles to cover that roof.
Convert the area to roofing squares.
Of your new roof.
To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100.
How many bundles in a square.
To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares.
Find the square footage of the roof.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
The materials used for the shingles or seam panels the surface area of the roof with a measurement typically in squares and any special features related to the.
Shingles come pre packed in either paper or plastic wrapped bundles and they design them to be an ideal weight for one person to carry.
As a result you might need to calculate an estimate of how much it will cost to replace your old roof with a new one.
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.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
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.
If you have a simple gable roof you ll only need to measure and sum up the 2 planes of the roof.
A square is an area of roof which measures 100 square feet.
You will find roof shingles sold by the bundle and by the square.
The most common type of shingle called a three tab or strip shingle is.
Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.
To properly calculate how many bundles of shingles are needed to roof your home you need to calculate the total square footage of the roof and convert it to squares.
Singles are often sold in bundles with three bundles equaling one roof square.