Divide the square footage of the roof by 100 to get the number of squares needed.
How many square feet in 1 square of roofing shingles.
This is simply 100 square feet of roof.
A square simply refers to a 10 x 10 square of roofing.
1 square of roof covers 100 sq ft area need 3 bundles of standard shingles usually.
By 36 in in each bundle.
Normal architectural shingles are approximately 3 bundles per square.
Before you start your project you need to calculate the size of the roof you intend to cover.
Summary of the above.
To find the squares divide the overall roof area by 100 and then round up.
It is often compared to slope but is not exactly the same.
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.
Square definition a square is the number of shingles it would take to cover 100 square feet of roof area with each row of shingles covering the tabs of the layer below it.
Each plywood sheet is 4 x 8 feet or 32 square feet which coincidentally is almost exactly equivalent to the coverage of one bundle of traditional three tab shingles.
Each square will need three bundles of shingles to cover it.
If it s a re roof project and you have access to the original paperwork from the last shingle installation that may be useful in showing the roof area.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
For instance if the roof is 1550 square feet then it is 16 squares.
The square footage of a roof is normally measured in squares of 100 feet.
The most usual case when buying standard shingles i e three tab strip shingles and laminated shingles there are 29 standard sized shingles 12 in.
A square of shingles covers 100 square feet of roof step 3 look at the bundle package of cedar shingles to see how many bundles it takes to make up one square of shingles.
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.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
However shingles are packaged in a way that they are light enough for the average person to carry around.
A square is 100sq feet if your using some of the heavier roofing most one bundle of shingle covers about 33 square feet of roof hence around 850 bundles of shingles will be needed for 28000 square feetroof.
This would be 87.