Is There Asbestos In Roofing Felt

Thanks to its impressive durability and fire resistance the mineral was widely used in a variety of roofing slates.

Is there asbestos in roofing felt.

Roofing tar and asphalt liquids. The use of asbestos cement roof shingles was growing at a steady rate in the united states. 12 1990 pdf 3 pp 36 k letter to d. Asbestos cement in roofing.

Cement sheets are one of the most commonly used roofing products that the mineral is found in and there are still a large number of. Rueckert re asbestos neshap apr. It was a universal solution to roof concerns. Roofing caulking mastic and sealant.

15 1991 pdf 3 pp 80 k letter to j. Work on roofing felt would not normally be notifiable provided that the material is in good condition. 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. In fact most other roofing products produced in the early to mid twentieth century contained asbestos.

Vermiculite attic insulation is another possible source of asbestos inside the flat roof. Due to its fantastic thermal qualities and being extremely fire retardant it is not surprising that asbestos was extensively used in roofing and insulation in the 20 th century. How dangerous is this. Asbestos roofing felt being cut.

Most serious cases are from unprotected workers who were actually involved in the production of asbestos roofing material with repeated exposure over many years. Asbestos fibers found their way into these roofing products. Roofing felt and underlayment. Roofing cement and cement based.

21 1992 pdf 5 pp 158 k letter to j. Builders commonly used asbestos felt as a floor backing and roofing material during much of the 20th century. Dufour re applicability of the asbestos neshap to asbestos. Flat roof asbestos like cement and felt based versions are still present on many roofs and still in existence can be identified based on hse guidelines for asbestos cement.

Asbestos containing roofing materials were a popular choice for the citizens of the u s. Many tradesmen suffered high levels of toxic exposure when working with asbestos felt in the past and it can lead to serious long term health consequences when it is uncovered in old buildings. The combination here is a true concern. However tasks on these particular materials can be carried out by non licensed workers who are appropriately trained.

There is also a strong link to asbestos exposure greatly increasing the risk of developing a serious condition in smokers.