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By the 1970s, the Occupational Safety and Hazard Administration (OSHA) was established and began issuing standard updates for fall protection in the construction industry. In 1994, OSHA also issued Subpart M Fall Protection Standard which required roof edge protection to be in place where employees were working six feet or more above a lower level.
In earlier days, birch bark was occasionally used as a flashing material. [7] Most flashing materials today are metal, plastic, rubber, or impregnated paper. [8]Metal flashing materials include lead, aluminium, copper, [1] stainless steel, zinc alloy, other architectural metals or a metal with a coating such as galvanized steel, lead-coated copper, anodized aluminium, terne-coated copper ...
Bullnose trim is used to provide a smooth, rounded edge for countertops, staircase steps, building corners, verandas, or other construction.Masonry units such as bricks, concrete masonry units or structural glazed facing tiles may be ordered from manufacturers with square or bullnosed corners.
A lifeline is a fall protection safety device in the form of an open fence composed of wire and stanchions secured around the perimeter of an area to prevent accidental falls. It is commonly found on sailboats [1] and construction sites, [2] as well as other situations where dangerous falls can occur, such as at scenic overlooks and in caves.
Construction site workers can also be exposed to asbestos, most commonly used in heat insulation. The asbestos fibers can cause respiratory and lung problems if inhaled. [53] Harmful chemicals are also found in paint used by workers on construction sites. Paints contain materials like binders, solvents, and pigments that give the desired color ...
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 ...
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