Metal tile roofs manufactured prior to the early 1980s often contained a low level of asbestos in the mastic or bituminous adhesive coatings.  These coatings don’t present any danger when contained in the roof, however they will need to be disposed of properly through specialists.

There are some indicators which can help you identify if your roof contains asbestos

1. Tile age.  If the tiles are manufactured in the late 1980s or later, it is less likely that they will contain asbestos.
2. Tile coatings. Asbestos was used in the coatings to adhere stone chip to steel tiles.  If the surface of your roof is painted with no texture, it is less likely to contain asbestos.
3. The tile profile.  Asbestos containing tiles generally has scalloped design.  If it does not have a scalloped edge, it is less likely to contain asbestos.

If you are unsure if your roof contains asbestos, prior to reroofing please consult a roofing specialist to conduct testing.