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Laminated glass is typically used in locations in the house most susceptible to injury from human impact such as bathrooms, doors, around staircases and in locations close to the flooring (it fulfills the requirements of 'shatterproof glass' that is mandated for use in these areas by Australian Basic AS 1288 Glass in buildings).
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 resist higher impact loads prior to breaking. It likewise makes it more secure due to the fact that, when it does shatter, it burglarizes many little cubic pieces instead of unsafe shards.
However, toughened glass has no thermal or acoustic advantages over other glass of the exact same toning or density. Secondary glazing is where single-glazed windows are retrofitted with a transparent acrylic or glass sheet connected to the inside of 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, given that it is impossible to absolutely seal the border, however it can provide good sound control. Window films are a thin polymer film containing an absorbing 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 movies can cut in half the overall SHGC of the window by absorbing and/or showing solar radiation. This can be particularly useful in hotter climates where cooling is the primary issue, or on east and west elevations straight exposed to extended periods of sunlight. Window movies may also lower visible light transmittance.
For this factor, it is usually best to utilize a recognized installer of window film. Frames have a substantial effect on the thermal performance of windows and doors, due to the fact that energy can be acquired and lost through the frame, in addition to through the glass. Various kinds of frame will allow different levels of heat gain and loss, so careful choice of frame is essential for efficient passive design.
Nevertheless, aluminium is also an excellent conductor of heat and will reduce the insulating value of a glazing system, unless particularly crafted to reduce this. A 'thermally broken' frame is made up of 2 aluminium sections linked by a structural insulator (usually a low-conductivity structural polymer). This 'breaks' the thermal connection through the aluminium and lowers the heat streaming through the frame.
Timber frames are a good natural insulator that can suit some home designs. Timber frames ought to be made from species that have naturally high sturdiness or be dealt with to prevent decay and deformation.
Nevertheless, this can result in gaps that permit air seepage unless excellent draught sealing (weather stripping) is set up. u, PVC is a kind of plastic (unplasticised polyvinyl chloride, likewise referred to as rigid PVC). u, PVC frames offer excellent thermal performance, frequently better than wood or thermally damaged aluminium. u, PVC is long enduring and requires very little maintenance, and can be moulded into complicated profiles that provide excellent air seals.
u, PVC doors and windows have excellent thermal performance Photo: Ben Wrigley (Light Home Architecture and Science) Composite frames use aluminium profiles on the external areas with either a timber or u, PVC inner area. These integrate the low upkeep and toughness of aluminium with much enhanced thermal efficiency.
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