Asbestos Siding 1950

A brief history of asbestos cement siding.

Asbestos siding 1950.

Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. Asbestos shingles are relatively strong but. The name has its origin in the greek word for inextinguishable. Asbestos cement coatings also were used.

Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely. Asbestos cement roofi ng and siding in the early 1900s manufacturers reinforced portland cement with asbestos fibers to create a fire resistant and durable building material. The harmful effects of asbestos were beginning to be acknowledged and the introduction of asphalt based roofing products began dominating in the late 1950s. Gypsum and trademarked in 1962.

Method of making color ornamented asbestos cement sheets pdf u s. History of asbestos cement siding roofing products. Questions answers about asbestos cement siding on buildings. Let the siding dry then prime and paint with the best exterior latex you can find.

The portland cement binds asbestos fibers into a hard mass. China glaze siding was popular in the 1950 s by era alone as a cementious product it would at least be treated as pacm presumed asbestos containing material. What to expect when buying a house built in the 1950 s. China glaze was a trademarked name for a cement asbestos siding shingle filed by u s.

Finally in 1989 asbestos became illegal when the environmental protection agency epa issued an asbestos ban and phase out rule. The epa asbestos web site contains general information on asbestos sources exposure and health effects what to do if you suspect asbestos training and laws and regulations. Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials. The product first made in 1905 served as a coating for boilers steam pipes and equipment that generated heat.

A highly effective and inexpensive fire retardant material and thermal and acoustic insulator asbestos was used extensively in home construction from the early 1940s through the 1970s. These houses have a great charm about them. What you should know about buying a house built in the 1950 s. House built 1950 in old houses.