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Energy Efficient Windows and Doors


WER Energy Window Label DuraflexWindow Energy Ratings (WER) provide information about the energy efficiency and thermal performance of windows. Thermal performance ratings are calculated by our in-house approved simulator and verified by the BFRC; the ratings scale goes from A++ to E, with ‘A++’ being the most efficient, and ‘E’ the least. The latest Building Regulations require all new homes to have windows with a minimum ‘C’ WER rating.

During the rating process the energy efficiency level is calculated and verified by BFRC, which is totally independent from any manufacturing or installing company. Manufacturers of BFRC rated product and BFRC Authorised Installers are audited to ensure that their energy efficient windows are achieving the stated rating. The BFRC energy ratings allow you to compare varying window products and choose the most suitable for your application.



Duraflex A++ Energy Rated Products


In line with Governments desire to reduce CO² emissions, building regulations require tightening of building thermal efficiency including windows and doors. The Duraflex Diamond Suite is able to meet the highest Window Energy Ratings, offering A++ rated energy efficient window systems that allow you to deliver sustainable and highly thermally efficient products to your customers. The Diamond Suite delivers market-leading A++ rated windows, with U-values as low as 0.8 and WER of A++32, certified by the British Fenestration Ratings Council (BFRC). 
Duraflex’s highly experienced Technical Support Team includes a dedicated in-house BFRC Approved Simulator, qualified to calculate U-vales and Window Energy Ratings, dedicated to supporting customers with their respective thermal calculation requirements and to advise on regulatory compliance.