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It often consists of a toe board, a main guard rail and an intermediate rail.". [2] Roof edge protection can take the form of personal fall arrest systems (PFAS), fall restraint systems, guardrail systems, warning line systems, safety monitors, or ladders. Since construction is one of the most dangerous professions in the world, roof edge ...
Screen gutter guards are among the most common and most effective. They can be snapped on or mounted, made of metal or plastic. Micromesh gutter guards provide the most protection from small and large debris. [33] PVC type gutter guards are a less costly option, however, they tend to quickly become brittle due to sun exposure.
Wood shingles Fiber cement siding and shake shingles under the gable roof. Wood shingles are thin, tapered pieces of wood primarily used to cover roofs and walls of buildings to protect them from the weather. Historically shingles, also known as shakes, were split from straight grained, knot free bolts of wood. Today shingles are mostly made by ...
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The structural channel, C-channel or parallel flange channel (PFC), is a type of (usually structural steel) beam, used primarily in building construction and civil engineering. Its cross section consists of a wide "web", usually but not always oriented vertically, and two "flanges" at the top and bottom of the web, only sticking out on one side ...
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Any tool with a characteristically shaped cutting edge used for carving or cutting a hard material such as wood, stone, or metal by hand, with a mallet, or with mechanical power. Chiselling involves forcing the blade or cutting edge into the material in order to cut it. chop saw chops A type of vise. circular saw clamp. Also called a cramp.