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In a fire, PVC can form hydrogen chloride fumes; the chlorine serves to scavenge free radicals, making PVC-coated wires fire retardant. While hydrogen chloride fumes can also pose a health hazard in their own right, it dissolves in moisture and breaks down onto surfaces, particularly in areas where the air is cool enough to breathe, so would ...
Hurricane fabric coverings are a newer, relatively lower cost type of shutter. Tested and approved systems are made from polypropylene fibers, polyamide fibers or from laminated or cast PVC. In 2011, a flat hurricane shutter system developed by UltraTek Worldwide was approved by Florida Building Code. [3]
Scrim is also an item that utilizes plies of tissue reinforced with a layer of nylon (much like a fishing line or heavy-duty mono-filament) or cotton thread. The layer of scrim is not counted in the ply count. Scrim is a glass fiber (previously burlap) open-mesh tape used to cover joints in plasterboard/wall board before plastering. It prevents ...
High-speed doors are made to handle a high number of openings, generally more than 200,000 a year. They must be built with heavy-duty parts and counterbalance systems for speed enhancement and emergency opening function. The door curtain was originally made of PVC, but was later also developed in aluminium and acrylic glass sections.
Various window blind styles. A window blind is a type of window covering. [1] There are many different kinds of window blinds which use a variety of control systems. A typical window blind is made up of several long horizontal or vertical slats of various types of hard material, including wood, plastic or metal which are held together by cords that run through the blind slats.
Sash curtains are used to cover the lower sash of the windows. Rod pocket curtains have a channel sewn into the top of the fabric. A curtain rod is passed through the channel to hang. [15] Thermal or blackout curtains use very tightly woven fabric, usually in multiple layers. They not only block out the light, but can also serve as an acoustic ...
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