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Laminated glass is often utilized in locations in the home most susceptible to injury from human impact such as bathrooms, doors, around staircases and in areas near to the flooring (it satisfies the requirements of 'shatterproof glass' that is mandated for usage in these areas by Australian Standard AS 1288 Glass in structures).
Toughened glass has been 'tempered' by being reheated and quickly cooled once again. This process makes it much more powerful than standard glass it can withstand greater effect loads before breaking. It also makes it safer since, when it does shatter, it breaks into numerous small cubic pieces rather than hazardous fragments.
Nevertheless, 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 the frame or openable sash with a secondary frame or with magnetic strips.
Secondary glazing will not perform as well thermally as a produced IGU, since it is difficult to absolutely seal the boundary, however it can supply great sound control. Window movies are a thin polymer film containing an absorbing dye or reflective metal layer, with an adhesive support. They adhere to your glazing to alter its colour or make it reflective.
Applied to existing glass, some window films can halve the total SHGC of the window by taking in and/or reflecting solar radiation. This can be especially beneficial in hotter climates where cooling is the main issue, or on east and west elevations directly exposed to long durations of sunlight. Nevertheless, window films may also minimize visible light transmittance.
For this reason, it is normally best to utilize a certified installer of window film. Frames have a substantial effect on the thermal performance of windows and doors, because energy can be acquired and lost through the frame, as well as through the glass. Various kinds of frame will enable various levels of heat gain and loss, so cautious choice of frame is necessary for effective passive design.
Aluminium is also an extremely excellent conductor of heat and will decrease the insulating value of a glazing system, unless particularly engineered to reduce this. A 'thermally broken' frame is comprised of 2 aluminium areas linked by a structural insulator (normally a low-conductivity structural polymer). This 'breaks' the thermal connection through the aluminium and reduces the heat streaming through the frame.
Wood frames are an excellent natural insulator that can suit some home designs. Lumber frames must be made from species that have naturally high sturdiness or be dealt with to avoid decay and contortion.
However, this can result in spaces that allow air infiltration unless great draught sealing (weather condition removing) is set up. u, PVC is a form of plastic (unplasticised polyvinyl chloride, also understood as stiff PVC). u, PVC frames provide excellent thermal performance, typically much better than timber or thermally damaged aluminium. u, PVC is long lasting and needs very little maintenance, and can be moulded into complicated profiles that provide exceptional air seals.
u, PVC windows and doors have exceptional thermal efficiency Picture: Ben Wrigley (Light Home Architecture and Science) Composite frames utilize aluminium profiles on the outer areas with either a lumber or u, PVC inner area. These combine the low maintenance and durability of aluminium with much improved thermal efficiency.
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