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.
It depends on the size of the shingle!
Some concrete shingles did contain asbestos. Many shingles never were made with asbestos.
26 shingles in a bundle of three tab asphalt shingles
A square of shingles covers 100 square feet. So, you need 1732/100=17.32 square of shingles. If you can only buy whole number squares of shingles, you will need 18 squares of shingles to cover 1732 square feet.
1.2 squares.
Standard fiberglass shingles come 3 bundles to the square.
20 squares or 60 bundles
Shingles vary in dimensions, and sometimes there are specific bundles of shingles made for the sole purpose of ridge coverage. If you are using the house shingles for ridge, take the length of ridge to be covered, divided by the exposure of the shingle to determine the number of ridge pieces needed. Normally you will get three pieces out of one full shingle. Once you determine the number of full shingles, find out how many shingles are in a bundle and purchase the smallest bundle of shingles necessary to complete the job.
American shingles are 36" Metric Shingles are 1 meter long or 39-3/8" Many American manufacturers are selling metric shingles, not american. So check what you are buying.
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.
10
A leaking roof can be a headache for many owners. In addition, a leaking roof can cause extensive water damage inside a home, potentially damaging the foundation. A shingle roof is simple to repair. Locate the damaged shingle on a rooftop, and pull back the shingles above it. Using a claw hammer, remove the nails holding in the damaged shingle. Check for any existing damage to the tar cover. If there is any damage, repair it with silicone or roofing tar. Place the new shingle under the existing roof shingles, and nail in place. Make sure no other shingles were dislodged.