Usually not more than two.
Use wooden shingles.
As far as I know there is not. The type of roof, way that the shingles were installed, age of the shingles, number of layers of shingles, and many other factors all affect how a roof ages. I would suggest that if you are dealing with your insurance company you contact an engineering firm who specializes in this to conduct a study of your roof.
yes you can place new shingles over old shingles as long as the first layer of shingles are not curled....you will need 1 1/4 - 1 1/2 roofing nails..and 2 courses is the limit...follow same procedure as first roof installation
Shingles are used to prevent water from entering a home through a roof. They are placed in the upper section of the house overlapping eachother, when it rains, the water just floats out of the roof.
Most will have a layer of plastic-like fabric underneath but older shingles may just have plywood underneath.
form_title= Asphalt Shingles form_header= Put a new roof on your home with asphalt shingles. What color shingles do you need? *= _ [50] What size shingles do you need?*= _ [50] Are you replacing a whole roof?*= () Yes () No How old is the roof?*= _ [50]
The material used to make the shingles on a roof determines how often a roof needs to be replaced. For example, barring damage from extreme circumstances, slate shingles will probably last the entire lifetime of a house, where as asphalt shingles will probably need to be replaced every 15 to 30 years.
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.
Hi, do you mean how many bundles of shingles would be required for a 40 x 20 roof?
100 sq ft = 1 square.
Depends on weather, and brand. Generally shingles on a normal house will last 15 to 20 years in normal weather.