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Laminated glass is often used in locations in the home most susceptible to injury from human impact such as restrooms, doors, around staircases and in areas near the flooring (it satisfies the requirements of 'shatterproof glass' that is mandated for usage in these areas by Australian Standard AS 1288 Glass in buildings).
Toughened glass has actually been 'tempered' by being reheated and quickly cooled again. This process makes it much more powerful than standard glass it can resist greater effect loads before breaking. It also makes it safer because, when it does shatter, it gets into lots of little cubic pieces rather than harmful shards.
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 inside of the frame or openable sash with a secondary frame or with magnetic strips.
Secondary glazing will not carry out as well thermally as a produced IGU, given that it is difficult to absolutely seal the perimeter, however it can offer good sound control. Window movies are a thin polymer film including a soaking up color or reflective metal layer, with an adhesive support. They stay with your glazing to change its colour or make it reflective.
Applied to existing glass, some window films can halve the overall SHGC of the window by soaking up and/or showing solar radiation. This can be especially useful in hotter environments where cooling is the primary issue, or on east and west elevations straight exposed to extended periods of sunshine. However, window movies might also minimize noticeable light transmittance.
For this factor, it is usually best to use a certified installer of window film. Frames have a significant effect on the thermal performance of doors and windows, since energy can be gained and lost through the frame, in addition to through the glass. Various types of frame will permit different levels of heat gain and loss, so careful choice of frame is very important for effective passive design.
Nevertheless, aluminium is likewise an excellent conductor of heat and will decrease the insulating worth of a glazing system, unless particularly engineered to minimize this. A 'thermally broken' frame is comprised of 2 aluminium areas connected by a structural insulator (typically a low-conductivity structural polymer). This 'breaks' the thermal connection through the aluminium and decreases the heat streaming through the frame.
They can be costly, however rates are reducing as they end up being more typical. Wood frames are a good natural insulator that can suit some house designs. Wood frames must be made from species that have naturally high toughness or be dealt with to prevent decay and contortion. Inspect that the timber is sourced from a sustainably handled forest.
This can result in spaces that allow air infiltration unless good draught sealing (weather removing) is set up. u, PVC is a type of plastic (unplasticised polyvinyl chloride, likewise called rigid PVC). u, PVC frames provide excellent thermal performance, typically better than wood or thermally damaged aluminium. u, PVC is long enduring and needs extremely 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 outer areas with either a lumber or u, PVC inner section. These integrate the low maintenance and toughness of aluminium with much enhanced thermal efficiency.
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