SGG Planitherm Ultra N – Another Breakthrough From Saint-Gobain Glass

Date: 13 April 2007

With the arrival of CE marking of IGUs (EN1279) on March 1st, it has been agreed that thermally insulating glass units should now state U-values with 90% argon-gas filling.

This means that the declared optimum centre-pane U-value of IGUs incorporating many existing high performance low-emissivity (low-E) products, such as SGG PLANITHERM TOTAL, will subsequently round down to 1.2 W/m2K. It is important to note that the performance of the component products themselves has not changed. With this in mind, SAINT-GOBAIN GLASS UK launches its most advanced low-E glass yet, SGG PLANITHERM ULTRA N.

SGG PLANITHERM ULTRA N is already considered to be the benchmark low-E product on the continent. It represents the latest development in low-E coating performance further extending the SGG PLANITHERM family, Europe's best selling low-E glass and the UK's leading high performance low-E coating brand.

The optimum centre-pane U-value of 1.1 W/m2K when 90% argon-filled of SGG PLANITHERM ULTRA N allows manufacturers even greater flexibility to meet the current requirements of UK Building Regulations relating to thermal insulation. Its superior performance is of particular interest for commercial applications using poorly insulating frame materials such as aluminium or steel, or projects where a 1.1 W/m2K U-value is specified.

With its remarkably neutral appearance in both transmission and reflection and excellent light transmittance of 80% (only 1% less than an ordinary float glass IGU), SGG PLANITHERM ULTRA N sets a new standard for glazing applications including façades, windows, structural glazing and overhead glazing.

Derek Dragten, Marketing Manager of Saint-Gobain glass, said. “The addition of SGG PLANITHERM ULTRA N to the SGG PLANITHERM family means that SAINT-GOBAIN GLASS can continue to provide optimal low-E solutions for the specific needs of our customers: With its optimized balance of low U-value and high g-value SGG PLANITHERM TOTAL remains the product of choice for domestic applications where window energy ratings are to be considered and SGG PLANITHERM ULTRA is ideal for applications where a superior thermal insulating performance of 1.1 W/m2K is required.”