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Laminated glass is often used in locations in the home most vulnerable to injury from human effect such as bathrooms, doors, around staircases and in areas near to the flooring (it meets the requirements of 'shatterproof glass' that is mandated for usage in these locations by Australian Standard AS 1288 Glass in structures).
Toughened glass has been 'tempered' by being reheated and rapidly cooled again. This procedure makes it much stronger than standard glass it can resist greater effect loads before breaking. It also makes it much safer due to the fact that, when it does shatter, it breaks into many small cubic pieces instead of unsafe fragments.
However, toughened glass has no thermal or acoustic advantages over other glass of the 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 carry out also thermally as a manufactured IGU, considering that it is impossible to totally seal the perimeter, however it can offer good noise control. Window films are a thin polymer film consisting of an absorbing color 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 general SHGC of the window by taking in and/or showing solar radiation. This can be especially useful in hotter climates where cooling is the primary issue, or on east and west elevations straight exposed to long durations of sunshine. However, window movies might also decrease visible light transmittance.
For this factor, it is typically best to utilize a recognized installer of window film. Frames have a considerable effect on the thermal efficiency of doors and windows, because energy can be acquired and lost through the frame, as well as through the glass. Various kinds of frame will allow different levels of heat gain and loss, so cautious choice of frame is very important for efficient passive style.
However, aluminium is also a really good conductor of heat and will decrease the insulating value of a glazing unit, unless specifically engineered to minimize this. A 'thermally broken' frame is made up of 2 aluminium areas linked by a structural insulator (usually a low-conductivity structural polymer). This 'breaks' the thermal connection through the aluminium and lowers the heat flowing through the frame.
Wood frames are an excellent natural insulator that can match some house styles. Lumber frames need to be made from types that have naturally high durability or be dealt with to prevent decay and deformation.
This can result in gaps that permit air seepage unless good draught sealing (weather stripping) is set up. u, PVC is a type of plastic (unplasticised polyvinyl chloride, also called stiff PVC). u, PVC frames provide exceptional thermal efficiency, typically better than wood or thermally broken aluminium. u, PVC is long lasting and requires extremely little maintenance, and can be moulded into complicated profiles that supply excellent air seals.
u, PVC windows and doors have exceptional thermal performance Photo: Ben Wrigley (Light Home Architecture and Science) Composite frames utilize aluminium profiles on the external areas with either a timber or u, PVC inner area. These combine the low maintenance and toughness of aluminium with much enhanced thermal efficiency.
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