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ΓΡΑΦΕΙΟ ΟΕΥ ΣΥΔΝΕΫ

Level 2 / 219-223 Castlereagh Street, SYDNEY, NSW 2000

Tel: +61 2 9264 9130 - Fax: +61 2 9264 6135

Email: [email protected]

Βαϊανός ΩΡΑΙΟΠΟΥΛΟΣ-ΚΕΛΕΝΗΣ, Προϊστάμενος Γρφ. ΟΕΥ Σύδνεϋ

MAΪOΣ 2016

ΚΛΑΔΙΚΗ ΜΕΛΕΤΗ

ΕΝΕΡΓΕΙΑΚΩΝ ΚΟΥΦΩΜΑΤΩΝ

ΣΤΗΝ ΑΥΣΤΡΑΛΙΑΝΗ ΑΓΟΡΑ

Australian Window Association

http://www.awa.org.au

Οι τεχνικές προδιαγραφές για την εγκατάσταση παραθυρικών κουφωμάτων αλουμινίου στην Αυστραλιανή αγορά ελέγχονται από τον Φορέα ”AWA” του οποίου η κατηγοριοποίηση αφορά τόσο τις οικιστικού όσο και τις εμπορικού χαρακτήρα κατασκευές.

Το γενικό ποιοτικό πρότυπο που υιοθετείται εδράζει στη φιλοσοφία “WERS: Windows Energy Rating Sysyem” και κατηγοριοποιείται “commercial” / “residential”.

Το σοβαρότερο πρόβλημα που αντιμετωπίζουν στην Αυστραλιανή αγορά οι Ελληνικές εξαγωγές είναι οι καθυστερήσεις των φορτίων από Ελλάδα καθώς και το μεγάλο διάστημα που απαιτείται για το διαμετακομιστικό εμπόριο (περίπου τέσσερις εβδομάδες), με αποτέλεσμα η χρονική υστέρηση να έχει κόστος για τους κατασκευαστές που αναθέτουν τα εν λόγω έργα στους Έλληνες εργολάβους.

Από πλευράς Ελληνικών επιχειρήσεων που έχουν μέχρι στγμής συνάψει εδώ συνεργασίες με επιτόπιους συνεργάτες είναι η ΑΛΟΥΜΥΛ, η EUROPA, η ΕΛΒΑΛ, η EUROLINE και η PROFILCO.

Παράλληλα μία εταιρεία έχει πλήρως δραστηριοποιηθεί στην περιοχή της Νέας Νοτίου Ουαλίας, η ελληνικών συμφερόντων ECODPB/ECODESIGNPROVIDEBUILD.

Τα ελληνικά κουφώματα αλουμινίου θεωρούνται από τα ποιοτικότερα στη διεθνή αγορά και σαφώς υπερτερούν έναντι των ανταγωνιστών και κυρίως των Κινεζικών επιχειρήσεων. Σοβαρότεροι ανταγωνιστές από τη ΛΔ της Κίνας είναι οι εταιρείες: JenHoon, Yintec και Yuanda οι οποίες συνεργάζονται με Αυστραλούς κατασκευαστές (fabricators).

Υιοθετούνται τα ακόλουθα πρότυπα:

http://www.wers.net/wers-home

http://werscpd.net.barberry.arvixe.com/commercialbrowse.aspx

What is WERS

The Window Energy Rating Scheme enables windows to be rated and labelled for their annual energy impact on a whole house, in any climate of Australia.  To participate in WERS, window makers must obtain energy ratings for their products from a rating organisation that is accredited by the AFRC (Australian Fenestration Rating Council). WERS is independent of any one manufacturer and acts as a fair, rigorous and credible system for testing performance claims. WERS-rated windows must meet all relevant Australian standards. The scheme forms part of the quality assurance that smart manufacturers offer their customers. It is all about certified performance. The Window Energy Rating Scheme is managed by the Australian Window Association (AWA). To realise their full potential, WERS ratings are designed to 'plug in' to NatHERS, Australia's Nationwide House Energy Rating Software. Similarly, the FirstRate house energy rating software from the Sustainable Energy Authority of Victoria will accept data for 'real' windows. This enables designers to 'kick the tyres' of different windows during a rating before final selection is made.

About WERS

The Window Energy Rating Scheme rates whole of window product energy efficiency performance:

The Window Energy Rating Scheme enables windows to be rated and labeled for their annual energy impact on a whole house, in any climate of Australia. A New Zealand variant of WERS, the 'Window Efficiency Rating Scheme', is also available. To participate in WERS, window makers must obtain energy ratings for their products from a rating organisation that is accredited by the AFRC (Australian Fenestration Rating Council).

The Window Energy Rating Scheme is managed by the Australian Window Association (AWA): WERS is independent of any one manufacturer and acts as a fair, rigorous and credible system for testing performance claims. WERS-rated windows must meet all relevant Australian standards. The scheme forms part of the quality assurance that smart manufacturers offer their customers. It is all about certified performance. To realise their full potential, WERS ratings are designed to 'plug in' to NatHERS, Australia's Nationwide House Energy Rating Software. Similarly, the FirstRate house energy rating software from the Sustainable Energy Authority of Victoria will accept data for 'real' windows. This enables designers to 'kick the tyres' of different windows during a rating before final selection is made. Why You Should Choose Energy Rated Windows Energy Rating for windows is here to stay. The federal government's Australian Greenhouse Office helped to underwrite WERS as part of its commitment to improving energy efficiency and reducing greenhouse gas emissions from the built environment. Home resale value, comfort and amenity are improved by the use of high-performance windows. We have moved from an industry traditionally considered as providing a commodity building material to be sold on price alone into offering true consumer goods viewed as performance appliances for energy, noise and security. WERS conforms to the alternative solution path for energy efficiency within the Building Code of Australia.

How Custom Energy Ratings Are Produced: The information needed to generate a WERS rating is furnished on a commercial-in-confidence basis to the rating agency by the manufacturer. This takes the form of drawings, computer CAD files and material specifications for the window components. Most windows can be rated entirely by a two-stage process of computer simulation. This is the preferred and most economical option. The computer modelling software is the same as that used by the U.S. National Fenestration Rating Council (NFRC). It has been thoroughly validated against laboratory tests in all climates, hot and cold. WERS is truly international in its heritage and draws on over 100 person-years of research and development in 15 countries over the last decade. Occasionally, unusual or complex products may need to be measured by physical testing to establish their basic thermal behaviour. After initial modelling or testing, a second stage of computer simulation follows using NatHERS, from which the final WERS rating is generated.

History: The technical basis of the Window Energy Rating Scheme was established in 1995 under contract by Unisearch Ltd at the University of New South Wales. The foundation work was carried out by Dr. Peter Lyons and PC Thomas in the Solarch group of the UNSW Faculty of the Built Environment. Software assistance and the interface to the Nationwide House Energy Rating Scheme (NatHERS) was provided by CSIRO Division of Building Construction and Engineering. Funding was provided by the then Residential Window Association, the then Flat Glass Association of Australia and the research arm of Pacific Power.

Frequently Asked Questions

· What is a U-value or U-factor?

· What is the difference between R-value and U-value?

· What does Solar Heat Gain Co-efficient (SHGC) mean?

· What is Visible Transmittance (VT)?

· What is the difference between ANAC and NFRC ratings, and which one should I use?

· Why do I need the air infiltration figure from my AS2047 test report for an energy rating?

· What is Condensation Resistance (CR)?

· What is considered a standard aluminium window frame?

· What is considered a thermally improved aluminium window frame?

· What is considered a thermally broken aluminium window frame?

· What is spectrally selective glazing?

· What effect does the window type have on energy performance?

· Are there any recommendations I should consider to deliver comfort to my customer?

Energy Efficient Windows

Beautiful windows are possibly the most complex and interesting elements in the fabric of our homes.

They provide light and fresh air, and offer views that connect our interior living spaces with the great outdoors. However, ordinary windows can also represent a major source of unwanted heat gain in summer and significant heat loss in winter. Today, remarkable new framing and glazing materials have changed the energy performance of windows in a radical way. Energy efficient windows will make your home more comfortable, dramatically reduce your energy costs and help to create a brighter, cleaner, healthier environment. To enable the selection of high performance in different areas of Australia, WERS has split the country into three main areas that each require different window properties to achieve the best results. The map below shows these three main areas.

Cooling Climate Zones

The