Step 1 measure the width and height of one section of the roof and multiply the numbers together to get the square footage of that.
One bundle of roofing shingle coverage.
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How many bundles are in a square with composition shingles of lighter weight three bundles will do a square one hundred square feet.
However shingles are packaged in a way that they are light enough for the average person to carry around.
Asphalt shingles range in price from about 25 per bundle for a standard 3 tab style to around 50 75 or more for an upgraded architectural style.
Be sure to add a couple of bundles for double first row.
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.
Per bundle 30 pieces by gaf 2 50 05 bundle.
The measurements entered represent a rectangle of roof on one side of the building the calculator uses these measurements to compute the area of the whole roof and determine the number of bundles.
A bit of measuring and math will help you to figure out how many bundles you ll need to shingle your roof.
Approximate coverage of one square 4 bundles of shingles based on following weather exposures shingle coverage table 1 20 shake coverage table 3 see footnote f below shingle exposure table 2 shake exposure table 4 f note.
How to calculate cedar shingles coverage by carrie perles things you ll need.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
This calculator is designed for a standard two sided sloped roof.
While most shakes are packed in bundles of 12 courses each side 12 12 they may be packed 9 9.
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Typically it takes three bundles of standard sized standard weight shingles to cover 100 square feet of roof surface.
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.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
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.
Bundle of sample shingles.
Each square will need three bundles of shingles to cover it.
This will alter the number.
Typically it takes three bundles of standard sized standard weight shingles to cover 100 square feet of roof surface.
One important point is that it is possible to purchase shingles both by the bundle and by the roofing square.
One bundle of shingles covers approximately 33 square feet of roof depending on the size and weight of the shingles.