Roofing Over Asbestos Shingles

No roofer in their right mind would use asbestos based shingles on any project nor can these types of shingles be produced or sold in the united states.

Roofing over asbestos shingles.

No roofing company today uses asbestos in shingles. Asbestos cement materials will typically last about 50 60 years. I also suggestinstalling the underlayment sort of as you go when you install the new roof in order to minimize the number of fasteners required by the underlayment. However if the roof is in good condition it may not need to be disturbed so long as it is properly and regularly maintained.

Shingles placed on a roof before the mid 1980s might contain asbestos. Any asbestos cement roofing that shows evidence of damage such as broken roofing or noticeable surface weathering may need to be replaced. State permits are often required so if you are looking to have your asbestos shingles repaired or replaced be sure to contact a roofing contractor who will be able to assist you with your area s asbestos removal laws. Most asbestos shingles overhang on the eaves and often the gables.

Because of its fire resistant properties asbestos was common in many home materials including roofing shingles. By the 1930s asbestos was a staple of the roofing industry. Most state and local ordinances have laws governing asbestos shingles and their removal and disposal by anyone other than a licensed and certified asbestos contractor may be prohibited. If the asbestos is not airborne it is not a danger.

This would avoid the cost of the asbestos demolition and also keep the church relatively water tight during the process. However asbestos fibers can cause serious lung and respiratory problems if inhaled. If your roof or siding shingles are in good condition they are unlikely to pose a health hazard to you or your family. Asbestos roof shingles could prevent fires from starting or spreading from a neighboring home or building.

The asbestos in shingles siding and other home products is encapsulated that is surrounded by a coating of something else that keeps it from becoming airborne. Asbestos cement roofing shingles and siding products are not likely to release asbestos fibers unless sawed dilled or cut. If you do somehow end up with those shingles remaining on your house we doubt they will affect your sale. A local church is planning to re roof with metal shingles and we would like to sheet over the existing a c roofing and then install the shingles.

The east coast is filled with houses sided in these asbestos cement shingles. These shingles are a fact of life in that area and for houses of the early and mid 20th century.