Asbestos Asphalt Shingle Siding

If they look old they might have asbestos fibers in them.

Asbestos asphalt shingle siding.

Some asphalt siding may contain asbestos in the asphalt impregnated felt backer or asbestos may also be in the asphalt impregnated paper tar paper or felt used as a house wrap under the siding. Asbestos shingles were so common during the 20th century that almost any shingles installed between 1920 and 1986 probably include asbestos. You can t drive screws and nails through them without pre drilling. It is very difficult to remove spray paint graffiti without also dissolving or discoloring some of the siding surface coating material itself.

No installing new siding over the old asbestos siding isn t a viable option. Originally asbestos siding was used because of the fire resistant properties of asbestos. This would trigger dust and asbestos dust is a problem as i ve mentioned. The national emissions standards for hazardous air pollutants neshap identifies several asphalt containing roofing products that may also contain asbestos including.

The building shown at left located in hughsonville ny using the thatch edged shingle siding style is almost certainly sided with asbestos cement shingles. If you don t know the age of the shingles inspect them for wear. Asbestos shingles are relatively strong but brittle. Because asbestos in a mineral and fibrous adding asbestos to siding materials also increases strength and durability while providing some insulation and fireproofing to the structure.