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GGP December 2014

News BFRC hosts Japanese delegation GGF releases four new publications 6 December 2014 BWF issues guidance on slim IGUs The GGF has released four new and updated publications to help and guide members’, homeowners and the wider construction industry. The new publications include; The Quality of Vision: This new leaflet highlights the high standards that consumers should expect when buying top of the range sealed units and offers guidance for consumers to carry out a professional standard inspection to ensure their sealed units achieve the expected high quality of vision. This publication also covers areas such as special types of glass, condensation and patterned glass. Low Emissivity Glass and its Visual Quality: A leaflet designed to help consumers understand how low emissivity glass can increase the energy efficiency of their home. The leaflet also considers all UK variations of building regulations, reviews the pros and cons of the product as well as offering advice on how visual quality should be assessed. The Right Glazing in the Right Place: This safety and security leaflet has been revised and provides information on impact performance of glass and safety glazing in critical New guidance has been published by the British Woodworking Federation (BWF) to help firms placing orders for IGUs including narrow cavity or ‘slim’ glass units. ‘Slim’ units have cavities of 8mm or less, often with a reduced edge seal, and are favoured in listed buildings or conservation areas as they allow thinner timber profiles and bead detail. Concerns have been raised by BWF members about the quality of some of these units, which are supplied by a range of different manufacturers. Further investigation by the BWF has also highlighted that there are some ‘slim’ IGU suppliers who are seemingly unable to provide the appropriate test evidence required to ensure performance of the unit in the long term. Kevin Underwood, BWF technical director, said: “We have received a number of queries concerning certain ‘slim’ insulating glass units on the market. The new guidance addresses this concern, helping buyers to exercise appropriate care and ensure that when purchasing IGUs they know what to ask for and what they should expect from supporting documentation from their suppliers. IGUs that have been suitably tested and manufactured in a controlled manner should provide the levels of performance our members are looking for.” The BWF is advising its members to seek confirmation from suppliers that all the IGUs, both ‘standard’ and ‘slim’ types will be CE marked and will meet the requirements for the durability of glass units given in the BS EN 1279 series of standards. “In order to establish that the test evidence applies to the glass units which you’re intending to buy, you should ask the supplier for a copy of the system description, and check that this is fully consistent with what you’re buying,” explained Kevin Underwood. “The IGUs should also have been tested for durability, which means meeting the requirements for moisture penetration, gas leakage if appropriate, and edge seal strength. The production of the IGUs should also follow a factory production control system and periodic testing meeting the requirements of BS EN 1279.” Members are also advised to discuss the length of warranty that is being offered by their glazing suppliers on these units and to check the detail as to what these warranties will cover. They should also confirm that they will employ an acceptable glazing method using appropriate and compatible materials in an effort to avoid future problems. For a copy of the BWF fact sheet on slim IGUs, visit: www.bwf.org.uk/ assets/bwf-igu-advice.pdf locations, recommendations on the class of safety glass and plastics and also recommended thickness of glass together with a diagram of critical locations. Narrow Cavity Insulating Glass Units (IGUs) with Reduced Spacer-bar Sightlines: This new leaflet provides technical guidance to manufacturers and specifiers of narrow cavity Insulating Glass Units (IGUs) with cavity widths of 8mm or less and with reduced spacer-bar sightlines. To read or download the new publications, please visit: www.ggf.org.uk/publication/ A delegation of representatives of the Japanese window industry visited BFRC on 3 November to learn how BFRC, the UK’s leading window and doorset energy ratings system, was launched and developed. The visit was funded by the Japanese government and held at Glaziers Hall, London. The Japanese window industry is reportedly looking into creating a similar system to that provided by BFRC and came to the UK specifically to meet the BFRC team. BFRC is considered to be the world leader in window and doorset energy ratings and the Japanese delegation was in the country to find out how the system works, how it has been received by the UK industry, and the challenges that have been faced and overcome. The meeting started with a presentation from BFRC technical director, Gary Morgan, followed by an in-depth question and answer session. Giles Willson, BFRC chairman, Chris Mayne, BFRC managing director, and Toby Blamey, BFRC compliance manager, were also present. “BFRC was delighted to host this visit and share our knowledge and experience,” commented Chris Mayne. “BFRC’s technical expertise and history of operating one of the most successful and oldest established ratings systems is much in demand. This Japanese industry visit is the latest manifestation of what is worldwide interest. We would like to thank our colleagues at NSG for arranging this meeting.” “NSG Group is part of the industry body in Japan looking at window and doorset energy ratings. We obviously thought of BFRC and initiated a meeting,” added Phil Brown, European regulatory marketing manager, for NSG group. “Sharing the learnings gained from launching, operating and growing a successful system could be invaluable.”


GGP December 2014
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