What Do Asbestos Siding Shingles Look Like

Asbestos cement roofing shingles and siding products are not likely to release asbestos fibers unless sawed dilled or cut.

What do asbestos siding shingles look like.

The front may have a grainy sandy texture. Asbestos shingles are relatively strong but brittle. This would trigger dust and asbestos dust is a problem as i ve mentioned. Determine when the shingles were installed on your roof.

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

Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos. Photo guide to cement asbestos wall shingles or siding products. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely. Asbestos cement is a mixture of portland cement reinforced with asbestos fibers.

If they look old they might have asbestos fibers in them. If you don t know the age of the shingles inspect them for wear. Old asbestos siding tiles may also have a wood grain texture like cedar. Testing for positive id.

The portland cement binds asbestos fibers into a hard mass. This is the wavy edge asbestos cement shingle siding product. If the asbestos material is in good shape and will not be disturbed do nothing. It is usually brittle and the back may be black and have the appearance of tar paper.

Asbestos siding was manufactured to resemble many materials so it won t always look the same. Look for siding that looks like roof shingles. This is the most common pattern used.