Asbestos Siding 1950

History of asbestos cement siding roofing products.

Asbestos siding 1950.

The portland cement binds asbestos fibers into a hard mass. Finally in 1989 asbestos became illegal when the environmental protection agency epa issued an asbestos ban and phase out rule. 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. Gypsum and trademarked in 1962.

Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. 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. Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials. 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.

What to expect when buying a house built in the 1950 s. A brief history of asbestos cement siding. Asbestos cement coatings also were used. The product first made in 1905 served as a coating for boilers steam pipes and equipment that generated heat.

Asbestos shingles are relatively strong but. Bollaert s 1951 patent illustrated a decorative pattern embossed into asbestos cement siding sheets shingles boards. China glaze was a trademarked name for a cement asbestos siding shingle filed by u s. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.

What you should know about buying a house built in the 1950 s. 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. Questions answers about asbestos cement siding on buildings. These houses have a great charm about them.

Method of making color ornamented asbestos cement sheets pdf u s. The name has its origin in the greek word for inextinguishable. House built 1950 in old houses. The harmful effects of asbestos were beginning to be acknowledged and the introduction of asphalt based roofing products began dominating in the late 1950s.