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Laminated glass is often used in locations in the home most susceptible to injury from human impact such as bathrooms, doors, around staircases and in locations close to the floor (it fulfills the requirements of 'shatterproof glass' that is mandated for use in these locations by Australian Basic AS 1288 Glass in structures).
Toughened glass has actually been 'tempered' by being reheated and rapidly cooled once again. This process makes it much more powerful than standard glass it can withstand greater effect loads prior to breaking. It likewise makes it much safer because, when it does shatter, it burglarizes lots of little cubic pieces rather than dangerous fragments.
Toughened glass has no thermal or acoustic advantages over other glass of the very same toning or thickness. Secondary glazing is where single-glazed windows are retrofitted with a transparent acrylic or glass sheet connected to the within of the frame or openable sash with a secondary frame or with magnetic strips.
Secondary glazing will not perform also thermally as a produced IGU, since it is impossible to completely seal the boundary, however it can provide excellent noise control. Window films are a thin polymer movie consisting of a soaking up dye or reflective metal layer, with an adhesive support. They stick to your glazing to change its colour or make it reflective.
Applied to existing glass, some window films can cut in half the general SHGC of the window by soaking up and/or showing solar radiation. This can be particularly advantageous in hotter environments where cooling is the main concern, or on east and west elevations directly exposed to extended periods of sunlight. Nevertheless, window movies may also lower noticeable light transmittance.
For this reason, it is generally best to use an accredited installer of window film. Frames have a substantial influence on the thermal efficiency of doors and windows, due to the fact that energy can be gained and lost through the frame, as well as through the glass. Different kinds of frame will allow different levels of heat gain and loss, so careful option of frame is important for efficient passive design.
Nevertheless, aluminium is also an excellent conductor of heat and will decrease the insulating value of a glazing system, unless specifically crafted to minimize this. A 'thermally broken' frame is made up of 2 aluminium sections connected by a structural insulator (normally a low-conductivity structural polymer). This 'breaks' the thermal connection through the aluminium and lowers the heat flowing through the frame.
Wood frames are a great natural insulator that can suit some house styles. Wood frames should be made from types that have naturally high durability or be dealt with to avoid decay and deformation.
This can result in gaps that enable air infiltration unless good draught sealing (weather condition stripping) is set up. u, PVC is a form of plastic (unplasticised polyvinyl chloride, also called stiff PVC). u, PVC frames supply excellent thermal efficiency, frequently much better than wood or thermally damaged aluminium. u, PVC is long enduring and needs really little maintenance, and can be moulded into intricate profiles that offer exceptional air seals.
u, PVC windows and doors have excellent thermal efficiency Picture: Ben Wrigley (Light House Architecture and Science) Composite frames use aluminium profiles on the outer areas with either a timber or u, PVC inner area. These combine the low maintenance and durability of aluminium with much enhanced thermal efficiency.
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