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Laminated glass is often used in areas in the home most vulnerable to injury from human impact such as restrooms, doors, around staircases and in locations near to the floor (it meets the requirements of 'safety glass' that is mandated for usage in these areas by Australian Basic 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 higher effect loads prior to breaking. It also makes it safer because, when it does shatter, it breaks into numerous small cubic pieces rather than dangerous shards.
Toughened glass has no thermal or acoustic benefits over other glass of the same toning or density. 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 carry out also thermally as a made IGU, given that it is difficult to totally seal the border, however it can provide great sound control. Window films are a thin polymer movie including an absorbing dye or reflective metal layer, with an adhesive backing. They stick to your glazing to alter its colour or make it reflective.
Applied to existing glass, some window films can cut in half the overall SHGC of the window by taking in and/or showing solar radiation. This can be particularly beneficial in hotter climates where cooling is the main concern, or on east and west elevations straight exposed to long durations of sunshine. However, window movies may also lower noticeable light transmittance.
For this reason, it is typically best to use an accredited installer of window movie. Frames have a significant impact on the thermal efficiency of doors and windows, because energy can be gained and lost through the frame, as well as through the glass. Different types of frame will permit various levels of heat gain and loss, so mindful option of frame is necessary for effective passive design.
Aluminium is also a very good conductor of heat and will reduce the insulating value of a glazing unit, unless particularly crafted to minimize this. A 'thermally broken' frame is comprised of 2 aluminium sections connected by a structural insulator (generally a low-conductivity structural polymer). This 'breaks' the thermal connection through the aluminium and decreases the heat streaming through the frame.
They can be pricey, however costs are reducing as they end up being more typical. Wood frames are an excellent natural insulator that can suit some house styles. Timber frames should be made from species that have naturally high resilience or be treated to prevent decay and contortion. Check that the lumber is sourced from a sustainably managed forest.
This can result in spaces that enable air seepage unless excellent draught sealing (weather stripping) is set up. u, PVC is a type of plastic (unplasticised polyvinyl chloride, likewise called stiff PVC). u, PVC frames supply outstanding thermal performance, frequently much better than timber or thermally damaged aluminium. u, PVC is long lasting and requires very little upkeep, and can be moulded into intricate profiles that provide exceptional air seals.
u, PVC windows and doors have exceptional thermal performance Picture: Ben Wrigley (Light Home Architecture and Science) Composite frames use aluminium profiles on the external sections with either a lumber or u, PVC inner section. These combine the low upkeep and durability of aluminium with much improved thermal performance.
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