Is There Asbestos In Roofing Felt

21 1992 pdf 5 pp 158 k letter to j.

Is there asbestos in roofing felt.

Builders commonly used asbestos felt as a floor backing and roofing material during much of the 20th century. 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. Asbestos containing roofing materials were a popular choice for the citizens of the u s. Work on any type of asbestos can be dangerous.

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 tar and asphalt liquids. 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.

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. 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. Moran re applicability of the asbestos neshap to asbestos roofing dec. Cropp re sawing asbestos roofing felt jun.

Asbestos cement in roofing. Most serious cases are from unprotected workers who were actually involved in the production of asbestos roofing material with repeated exposure over many years. Roofing felt and underlayment. How dangerous is this.

Asbestos fibers found their way into these roofing products. It was a universal solution to roof concerns. Roofing cement and cement based. There is also a strong link to asbestos exposure greatly increasing the risk of developing a serious condition in smokers.

12 1990 pdf 3 pp 36 k letter to d. 15 1991 pdf 3 pp 80 k letter to j. Roofing caulking mastic and sealant. The combination here is a true concern.

Vermiculite attic insulation is another possible source of asbestos inside the flat roof. However tasks on these particular materials can be carried out by non licensed workers who are appropriately trained. 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. Thanks to its impressive durability and fire resistance the mineral was widely used in a variety of roofing slates.

Work on roofing felt would not normally be notifiable provided that the material is in good condition.