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Laminated glass is often used in locations in the house most vulnerable to injury from human impact such as restrooms, doors, around staircases and in locations near the flooring (it satisfies the requirements of 'shatterproof glass' that is mandated for usage in these locations by Australian Basic AS 1288 Glass in buildings).
Toughened glass has been 'tempered' by being reheated and rapidly cooled again. This process makes it much stronger than standard glass it can resist greater effect loads prior to breaking. It also makes it safer because, when it does shatter, it gets into lots of little cubic pieces rather than unsafe fragments.
Nevertheless, 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 carry out too thermally as a made IGU, considering that it is difficult to completely seal the border, but it can offer excellent sound control. Window movies are a thin polymer film consisting of an absorbing color or reflective metal layer, with an adhesive backing. They stay with your glazing to change its colour or make it reflective.
Applied to existing glass, some window movies can cut in half the total SHGC of the window by soaking up and/or showing solar radiation. This can be particularly useful in hotter climates where cooling is the main concern, or on east and west elevations directly exposed to long periods of sunlight. However, window films may likewise minimize noticeable light transmittance.
For this factor, it is typically best to use a certified installer of window film. Frames have a significant effect on the thermal performance of windows and doors, since energy can be gotten and lost through the frame, in addition to through the glass. Different kinds of frame will allow different levels of heat gain and loss, so careful choice of frame is necessary for effective passive design.
However, aluminium is likewise a great conductor of heat and will reduce the insulating value of a glazing system, unless specifically crafted 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 decreases the heat streaming through the frame.
Lumber frames are an excellent natural insulator that can suit some house designs. Lumber frames should be made from types that have naturally high toughness or be treated to avoid decay and deformation.
This can result in spaces that enable air seepage unless great draught sealing (weather removing) is installed. u, PVC is a type of plastic (unplasticised polyvinyl chloride, likewise understood as rigid PVC). u, PVC frames provide outstanding thermal performance, often better than wood or thermally broken aluminium. u, PVC is long enduring and requires really little upkeep, and can be moulded into complex profiles that provide outstanding air seals.
u, PVC windows and doors have outstanding thermal efficiency Picture: Ben Wrigley (Light House 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 performance.
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