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The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting structure. Those types of roofing material which are commercially available range from natural products such as thatch and slate to commercially produced products such as tiles and polycarbonate sheeting. Roofing materials ...
The roof is sheeted with corrugated fibro sheets and the walls with flat fibro sheeting, with fibro battens covering the joints. Example of asbestos cement siding and lining on a post-war temporary house in Yardley, Birmingham. Nearly 40,000 of these structures were built between 1946 and 1949 to house families.
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 ...
In 1943, Johns-Manville suppressed a report confirming the link between asbestos and cancer. During the 1960s, 1970s and 1980s, the company faced thousands of individual and class action lawsuits based on asbestos-related injuries such as asbestosis, lung cancer and malignant mesothelioma. Many new settlements included offering $600 for ...
He mixed 90% cement and 10% asbestos fibres with water and ran it through a cardboard machine, forming strong thin sheets. Originally, the reinforcing fibres were of asbestos and the material was commonly used as siding in house buildings due to its low cost, fire-resistance , water tightness, light weight, and other useful properties.
Front cover of a brochure for Hatscheks Eternit Schiefer (asbestos cement roof tiles) Fibre-reinforced cement products were invented in the late 19th century by the Austrian Ludwig Hatschek . Principally he mixed 90% Portland cement and 10% asbestos fibres with water and ran it through a cardboard machine.
Malthoid was once common enough to be used as a generic description of flat roofing material in New Zealand and South Africa (item 26). A description of a New Zealand house built about 1914 says it was, "built of timber framework. covered by sheets of asbestos. The roof was closely timbered, then covered by strips of Malthoid paper.
Asbestos (/ æ s ˈ b ɛ s t ə s, æ z-,-t ɒ s / ass-BES-təs, az-, -toss) [1] is a group of naturally occurring, toxic, carcinogenic and fibrous silicate minerals.There are six types, all of which are composed of long and thin fibrous crystals, each fibre (particulate with length substantially greater than width) [2] being composed of many microscopic "fibrils" that can be released into ...