- Swisspacer -

BFRC announces important changes to how spacer bar thermal values are determined

On 15th July 2013 the BFRC announced important changes to the way spacer bar thermal values are determined and handed responsibility for spacer bar thermal values to the European Warm Edge Working Group. The BFRC wrote to thermal simulators and sealed unit makers to advise them of these changes.

The European Warm Edge Working Group is made up of the leading warm edge spacer bar suppliers in Europe and is run under the guidance of the Bundesverband Flachglas (BF) – the German Flat Glass Group. Each warm edge spacer bar on the BF website has been tested by ift Rosenheim under identical agreed conditions.

The results are published on the Bundesverband Flachglas website and thermal simulators and sealed unit makers now need to refer to the datasheets on this website and take the equivalent 2-box model conductivity values for spacer bars. The datasheets can be accessed or downloaded at http://www.bundesverband-flachglas.de/shop/kostenfreie-downloads/bf-data-sheets-english.

The test results show that SWISSPACER ULTIMATE is the best warm edge spacer bar for thermal efficiency. Under the current rules of substitution, ULTIMATE is the only warm edge spacer that can be substituted for any other spacer bar.

Until January 2014, BFRC is also accepting equivalent conductivity reports for spacer bars tested to WA17/1 that do not yet have an official 2-box report. However, from 1st January 2014, only the spacer bars listed on the Bundesverband Flachglas website will be valid for use in Window Energy Ratings.

News title: -    BFRC announces important changes to how spacer bar thermal values are determined
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Formed in 1998 Swisspacer is part of Saint-Gobain Glass Solutions. The company has experienced massive growth in the UK over the past 2 years. Its no-investment needed price benefit has been a key advantage that has attracted sealed unit manufacturers and window fabricators and fuelled its growth.

The manufacturing and head office is in Switzerland and a second manufacturing facility is established in Germany. Much investment is taking place to expand production capacity to ensure that Swisspacer is able to satisfy the dramatic ongoing growth in demand for its high performance warm edge spacer bar products.

Swisspacer has a growing network of leading sealed unit manufacturers in the UK and Ireland using its products, including Solaglas, Pilkington, Carey Glass, Supaseal, Custom Glass, Uniglaze2, Glass Systems, Clayton Glass, System 3 and Hollow Seal among others.

Swisspacer exactly matches the shape and dimensions of aluminium spacers, and being rigid and self supporting it handles in a similar way. And because there is no need to invest in expensive new machinery, it makes it very easy to get up and running with warm edge. Automated solutions are however available from Lisec, Saint-Gobain Seva and Rottler and Ruediger.

Independent tests conducted by IFT Rosenheim, the leading European independent fenestration research and test facility, showed that Swisspacer V had the best PSI values of all the other leading brands of spacer bar that were submitted for testing. Using Swisspacer thermal insulation (U-value) can be improved by up to 20%. Swisspacer V and Swisspacer perform very well in the Window Energy Rating Scheme.

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