I will assume that you mean 28 x 60 feet which would be 1680 square feet. A square of asphalt shingles is normally 100 square feet of coverage. Therefore, it would require approximately 17 squares of asphalt shingles to cover the specified area.
An allowance of 5 to 10 percent should also be made for waste. Additional material will be required to cover ridges, valleys, and other areas special areas.
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You buy shingles by the square. Three bundles cover one square. A square is 10x10. So four bundles should be more than enough.
10,000
Multiply 228 sq feet by 144 to get it in sq inches. Then divide by 16 to get the number. Result = (228 x 144)/16 = 228 x 9 = 2052
60
5.85 squares + 15% waste = ~6.75 squares of material needed 1/3 square per bundle of shingles 20 - 21 bundles of shingles (buy 21 and return the extra if necessary - it's i'mportant to have shingles from the same pallet/factory for matching purposes.
54.
4.8 square assuming 1' overhang and no waste
To find the sq. ft of a roof you have to measure the length and the width and multiply those figures together. Then you divide that figure by 100 and it will tell you how many squares of shingles it will take to cover it.
Six 'squares' will do it and leave a few spare.
i think it should take 7 bundles
It depends on how large the squares are. If they are 12" x 12" it would take 108 of them.
A square where I come from means 100 sq. ft. If we're agreed on that then 14x 65 = 910. -So it will take a little over 9 squares to do your roof.
A square of shingles is 100 sqft. there are 3 bundles in a square. 1267 sqft is better rounded off to 1300 sqft to allow for waste. so 13oosqft dived by 100 sqft = 13 squares. 13 x 3 = 39 bundles.
48 of them.
How much area would 15 bundles of shingles cover. Standard duty shingles use 3 bundles for every 100 square feet so 15 bundles would cover 500 square feet.
27 squares is equivalent to 2700 square feet. Measure square area by multiplying length by width of your entire roof. Add all the areas together for total square feet. Take the square feet and divide by 100 to get squares. 3 bundles of shingles to make one square with 5 inches of exposure on the shingles. For every 33 feet of ridge you will need one bundle of three tab shingles. Each bundle of shingles has 27 shingles so that is 81 single tabs at approximately 5 inches each, 405 inches of run or 33.75 linear feet. At current shingle prices near $21 per bundle that will cost you about $1700 just in shingles. #15 roll of felt is 4 squares at about $20 per roll. One box of coil nails will usually cover 18-20 squares. Any other calculations and you are on your own.