A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
1520 square ft is how many bundles of roofing shingles.
Given that you roof is 36 squares.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
Also have a couple of bundles spare on hand to cover wind damage etc.
This means that if you are going to be using heavier shingles you will need to have more bundles to cover each square foot.
To find the amount of shingles you.
Shingle coverage for 20 25 and 30 year shingles is 3 bundles per square.
For example a 20 x 30 building with a 12 overhang and a 4 12 pitch will have 736 sq ft of roof vs only 600 sq ft of slab.
100 sq ft 21 shingles per bundle.
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55 8 143 mm squares pallet.
40 and 50 year.
The square footage of a roof is normally measured in squares of 100 feet.
A square of shingles will be the amount needed to cover an area of 100 square feet.
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One square of shingles covers 100 square feet.
On the low end asphalt averages 100 and 150 per square while slate averages about 1 200.
However shingles are packaged in a way that they are light enough for the average person to carry around.
Compute the area of the whole roof and determine the number of bundles.
33 square feet per bundle 100 square feet per square 4 nails per shingle.
3 bundles per square.
Each square will need three bundles of shingles to cover it.
A bundle is around 1 3 of a square and costs an average of 30 to 600.
Be sure to add a couple of bundles for double first row and capping.
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.
Shingles are sold by the bundle and by the square.
Contentsbundle covers 33 3 sq.
15 year shingles come 3.
Heavier shingles100 square feet is called a 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.
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.