What Do Asbestos Siding Shingles Look Like

Look for siding that looks like roof shingles.

What do asbestos siding shingles look like.

This is the most common pattern used. Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials. Most likely the shingles are in two sizes 12 inch or 24 inch. The best method for determining if a substance contains.

You can t drive screws and nails through them without pre drilling. If the asbestos material is in good shape and will not be disturbed do nothing. Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos. If they look old they might have asbestos fibers in them.

This is the wavy edge asbestos cement shingle siding product. The bottom of an asbestos siding tile may have a wave like pattern though not always. Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. Testing for positive id.

The front may have a grainy sandy texture. Asbestos siding was manufactured to resemble many materials so it won t always look the same. This would trigger dust and asbestos dust is a problem as i ve mentioned. 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.

Old asbestos siding tiles may also have a wood grain texture like cedar. It is usually brittle and the back may be black and have the appearance of tar paper. A brief history of asbestos cement siding. Determine when the shingles were installed on your roof.

Asbestos shingles are relatively strong but brittle. If you don t know the age of the shingles inspect them for wear. The portland cement binds asbestos fibers into a hard mass.