Window profi les | materials feature
PVC window profi les must satisfy a range of design criteria – from the practicality of heat insulation to the details of manufacturability and aesthetic appearance. Lou Reade reports
Vinyl outlook: window profi le developments
When it comes to PVC window and door frames, balancing the aesthetic aspirations of architects with the practical needs of consumers – such as effective insulation – can be diffi cult. However, a number of suppliers have used PVC effectively in this way. Aluplast has designed a new type of PVC door
system – which, it says, offers better insulation and a wider choice of design options. “Architects want higher glass surfaces that can be opened more easily,” said Patrick Seitz, managing director of Aluplast. “At the same time, consumers demand better thermal insulation, more protection from wind-driven rain and a more-effective foil for burglars.” This led Aluplast to develop three versions of its lift-and-slide door system – basic, standard and premium – which meet different levels of demand. The basic version is reinforced laterally and in the upper part with two steel pipes. The other two versions use thermally separated aluminium. The premium version, which uses glass reinforced
plastic (GRP), can be applied as a passive house solution. Energy effi ciency is improved by up to 40%. And with the possibility of triple glazing and func-
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tional glazing up to 51mm, this increases the freedom of choice and options – to both architects and home- owners, says Seitz. At Fensterbau Frontale 2016, Aluplast exhibited the lift-and-slide door – with the new barrier-free threshold and a slim frame around the fi xed glazing. With a total weight of around 300kg, the lift-and-slide door can be opened and closed easily without effort. In manufacturing, set-up times are reduced and tool changing is minimised. Due to an improved connection technique, aluminium shells can be mounted up to 50% faster than with the previous version.
Sustainable benefi ts Belgian profi le extrusion specialist Deceuninck recently exhibited a range of products for sustainable home- building that use its Linktrusion technology – in a series of live tests and demonstrations. “Linktrusion has been a ground-breaking composite
PVC-U and fi breglass extrusion that results in fully recyclable windows that are up to 30% better insulated and have up to a 40% saving on materials and weight,” said Peter Degrande, product development manager at Deceuninck.
September 2016 | PIPE & PROFILE EXTRUSION 23
Plastic window profi les must balance
aesthetic and practical
considerations
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