4.8 square assuming 1' overhang and no waste
To determine how many squares of shingles are needed to cover a 648 square foot roof, you divide the total area by the size of a square of shingles. One square of shingles covers 100 square feet. Therefore, you would need 648 ÷ 100 = 6.48 squares of shingles. Since you can't purchase a fraction of a square, you would need to round up to 7 squares.
If you have cut up roof you will need just under 10% for starters and ridge cap. (3 tab) Example a 60 square roof would need 5-6 squares. Lower pitched roofs would of course require less.
To calculate the number of square shingles needed for a 28x52-foot roof, first determine the total area by multiplying the length by the width, which equals 1,456 square feet. Since one square of shingles covers 100 square feet, divide the total area by 100. Therefore, you would need approximately 14.56 squares of shingles, rounding up to 15 squares to ensure complete coverage.
To calculate the number of square shingles needed for a 16'x20' roof, first find the total area by multiplying the length by the width: 16 x 20 = 320 square feet. One square of shingles covers 100 square feet, so divide the total area by 100: 320 ÷ 100 = 3.2 squares. Therefore, you would need approximately 4 squares of shingles to account for waste and cuts.
One square covers 100 square feet, so to cover 1900 square feet of roof you would need 19 squares. However, you also need "starter shingles" and "hip and ridge" shingles, plus you need to have a few extras because of waste from cutting angles. Starter shingles go around the perimeter of the roof as a bottom layer for the first course of shingles. Hip and ridge shingles go, as you might expect, on the hips and ridges. In order to know for sure the exact quantity you would need for the entire roofing job you have to measure all of these areas.
You will need to get 10 square of shingles, 3 bundles usually equal one square but it depends on if you get 30 year 40 year 50 years shingles ect. talk to your seller, but you will need ten square
70 x 34 = 2380.. every 100 square feet makes 1 square,, so 2380 = 24 squares plus your cuts and ridges & starters,, usually you would figure an extra 2 squares.
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.Lowes and Home Depot have a good selection of books of roofing.
A square of shingles is 100 sq. ft. The figures you list total 1,446 sq. ft. You would need at least 15 squares of shingles. You will need extra for the starter row and the ridge cap.
On average, every 8 sq. of roofing material tear-off (shingles/felt/nails/etc.) weighs 1 ton. Ask the hauler about weight issues but that would add up to 3.75 tons. In a 30 yard dumpster that would be about 60 sq.
To cover 16 squares of roofing, you typically need about 2 to 3 bundles of shingles per square, depending on the type of shingles used. Each bundle usually requires around 30 to 40 roofing nails. Therefore, for 16 squares, you would need approximately 960 to 1,920 roofing nails, assuming an average of 60 to 120 nails per bundle. Always check the manufacturer's specifications for exact requirements.
That depends on the size of the shingles. ************************************************************** Size of shingles makes no difference. Shingles are sold by the bundle and the amount of bundles per square depends on the weight of the shingles. So you could have 3 bundles, 4 bundles or 5 bundles per square but they still add up to a (100 sq ft) square. The only difference would be if you are dealing with metric shingles, which is not going to make a big difference in the area covered. A square of shingles covers 100 sq ft. So for a 672 sq ft roof you will need 7 squares. Dave