Asbestos Siding And Asphalt Shingles House

The portland cement binds asbestos fibers into a hard mass.

Asbestos siding and asphalt shingles house.

The use of asbestos siding shingles was a popular one that was used in the us from the early part of the 20th century until the 1970s. The use of asbestos cement roof shingles was growing at a steady rate in the united states. In this photo of a house in new york state we can see both original cement asbestos wall shingles and newer fiber cement replacement wall shingles that do not contain asbestos. If they look old they might have asbestos fibers in them.

Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. Do not throw or drop removed asbestos siding. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely. State permits are often required of contractors for the removal of asbestos containing asphalt bituminous roofing products and asbestos cement shingles panels under the following conditions.

Determine when the shingles were installed on your roof. Nonfriable means they cannot be broken up by hand pressure. A brief history of asbestos cement siding. Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos.

This is the wavy edge asbestos cement shingle siding product. Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s. Photo guide to cement asbestos wall shingles or siding products. Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials.

Work from the top down removing the snails to keep from breaking the asbestos siding. If you don t know the age of the shingles inspect them for wear. Wrap asbestos siding in 6 mil thick plastic sheeting and secure the plastic with duct tape or place the debris in heavy duty plastic bags. Let the siding dry then prime and paint with the best exterior latex you can find.

Asphalt or cement roofing and siding that contain asbestos when intact and in good condition are generally considered nonfriable and are not hazardous. Asbestos shingles and siding on your house you found out that your house is covered in asbestos siding or roofing shingles and they are falling apart. Asbestos shingles are relatively strong but.