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A metal used at the edges of a roof. Step flashing (soaker, base flashing) Pieces of flashing material which overlap each other in "steps". Counter flashing (cap flashing) Covers a base flashing. Pipe flashing (pipe boot, vent boot, pipe flange) A product used where pipes penetrate roofs. Chimney flashing
Also used to prevent condensation from forming on pipes, known as pipe sweating, which can damage components and create a hazardous work environment. Removable insulation blankets for freeze prevention: used to prevent subfreezing temperatures from affecting an indoor or outdoor component or pipe. Freeze damage can be costly and time consuming ...
Frost damage can occur as cracks, stone splinters and swelling of the material. When water freezes, the volume of water increases by 9 %. [ citation needed ] When the volumetric moisture content exceeds 91 %, then the volume increase of water in the pores of the material caused by freezing cannot be absorbed by sufficient empty pores.
When found in the home, asbestos often resembles grayish-white corrugated cardboard coated with cloth or canvas, usually held in place around pipes and ducts with metal straps. Things that typically might contain asbestos: [33] Boiler and furnace insulation. Heating duct wrapping. Pipe insulation ("lagging"). Ducting and transite pipes within ...
For insulation purposes, metal ducts are typically lined with faced fiberglass blankets (duct liner) or wrapped externally with fiberglass blankets (duct wrap). When necessary, a double walled duct is used. This will usually have an inner perforated liner, then a 1–2" (2.5-5 cm) layer of fiberglass insulation contained inside an outer solid pipe.
Three-pipe Snow Fence System Snow Guards in Jackson, WY, USA Standing seam metal roof with Snow guards to keep snow from sliding off the roof too quickly. A snow guard is a device used to retain snow and ice from falling from one surface to a lower one; in contemporary usage, they are installed to prevent snow/ice pack from avalanching and damaging people, plants, and property below.
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In construction, a building or structure is waterproofed with the use of membranes and coatings to protect contents and structural integrity. The waterproofing of the building envelope in construction specifications is listed under 07 - Thermal and Moisture Protection within MasterFormat 2004, by the Construction Specifications Institute, and includes roofing and waterproofing materials.
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