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Fiber cement is a composite material made of cement reinforced with cellulose fibers. Originally, asbestos was used as the reinforcing material but, due to safety concerns, that was replaced by cellulose in the 1980s. [1] Fiber cement board may come pre-painted or pre-stained or can be done so after its installation. [2]
The asbestos fibres are intimately bound to the cement matrix and were considered to be immobilized in the cement and therefore less prone to be released in the environment, suspended in the air, and inhaled in the lung than in other materials or applications, such as thermal insulation or flocking, in which loose asbestos fibres were used.
Asbestos insulating board (AIB), also known by the trade names Asbestolux and Turnabestos, is an asbestos-containing board formerly used in construction for its fire resistance and insulating properties. [1] These boards were commonly used in the United Kingdom from the 1950s until production ended in 1980.
Asbestos is a mineral fiber that occurs in rock and soil [32] that has traditionally been used as an insulation material in many homes and buildings. It is fireproof, a good thermal and electrical insulator, and resistant to chemical attack and wear.
Asbestos turned out to be harmful to health and produces mesothelioma, a form of lung cancer, years after professional or occasional exposure . Starting from the seventies, asbestos use became progressively prohibited; however, in several countries, it is still used for building materials.
In time it became a generic term for other companies' similar asbestos-cement products, and later an even more generic term for a hard, fireproof composite material, fibre cement boards, typically used in wall construction. It can also be found in insulation, siding, roof gutters, and cement wallboard. The more prevalent transite found in wall ...
Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting ...
By the middle of the twentieth century, James Hardie had become the largest manufacturer and distributor of building products, insulation, pipes and brake linings containing asbestos. In Australia, it operated asbestos plants in New South Wales , Queensland , South Australia , Victoria and Western Australia .
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