When talking about the area of a roof, remember that it is not the same as the square footage of the structure. 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.
One square of shingles covers 100 square feet. 15 year shingles come 3 bundles to a square. 25 year come 4 bundles to a square.
about 3 squares or 9 bundes plus one for 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.
A 30x50 roof has 1,500 square feet which is 15 squares. 3 bundles of shingles equals 1 square so you will need about 45 bundles.
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.
100 square feet is called a 'square'. Given that, you roof is 36 'squares'. Shingle coverage for 20, 25, and 30 year shingles is 3 bundles per square. 40 and 50 year shingles are 4 bundles per square. Say the shingle you select has a coverage of 3 bundles per sqaure: the number of bundles you need would be 3 * 36, plus the amount for caps (which cover the 'peaks' and 'hips' in your roof. To estimate the amount of bundles you need for peaks, assume one bundle for every 25 feet of 'hip' or 'peak' you need to cover.
It depends on the size of the shingle!
you will have to give measurements for your roof if you want the answer
Your roof surface area will be about 785 Square feet. So you need 8 squares of shingles.
about 3 squares or 9 bundes plus one for 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.
3 3/4 squares.
measure the square footage first. one square of shingles (3 bundles) covers 100 sqft. divide the square footage by 100 and that's how many squares of shingles you need (be sure to buy enough extra to cap the roof with and compensate for waste at the ends. (starter and ender shingles)
Six 'squares' will do it and leave a few spare.
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
A 30x50 roof has 1,500 square feet which is 15 squares. 3 bundles of shingles equals 1 square so you will need about 45 bundles.
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.
Two squares.