Roof Material Asbestos

Many asbestos roofing materials have been present since the early 20th century.

Roof material asbestos.

Builders across the country heartily endorsed asbestos roofing as the best material on the market. It is black and pretty difficult to remove. Shingles weren t the only roof product containing asbestos materials. In the early 1920s american roofing material manufacturers johns mansville carey eternit and century were all offering at least one asbestos cement roofing shingle to their customers.

15 1991 pdf 3 pp 80 k letter to j. The use of asbestos cement roof shingles was growing at a steady rate in the united states. 14 1993 pdf 4 pp 134 k. Moran re applicability of the asbestos neshap to asbestos roofing dec.

Asbestos roofing materials require the same level of safety attention whatever their form. How to identify and safely remove asbestos roofing material acrm asbestos containing roofing material can present certain problems and concerns if discovered. Roofing shingles containing asbestos are manufactured from a mix of asbestos fibres and hydraulic cement. The primary area of concern is when removing or replacing the covering.

It is made of a mix of cement and asbestos fibers and as the majority of the materials which contain asbestos it is only dangerous when damaged and in poor condition. In fact most other roofing products produced in the early to mid twentieth century contained asbestos. Dufour re applicability of the asbestos neshap to asbestos roofing jan. It was one of the most used types of asbestos containing material for roof building mainly as an underlayment.

However for the most part simply having this material present on your roof does not equate to a danger. 21 1992 pdf 5 pp 158 k letter to j.