Rockdoor is pleased to confirm that Door Energy Ratings (DER's) are here at long last. For over 4 years Rockdoor has been pushing for the introduction of DER's as a simple and widely recognised method of informing customers with regards the energy efficiency of Rockdoors. DER's are a voluntary scheme operated by the British Fenestration Ratings Council BFRC. What are Energy Ratings? Energy Ratings are a simple tool used to inform the homeowner about the energy rating of a specific product. The scales go from A being the most energy efficient down to G being the most energy inefficient. This will be no different for Doors, with A-rated doors being the most energy-efficient. Energy Rating Labels on Rockdoors We will shortly be able to introduce a labelling system to help customers identify which Rockdoors are the most energy-efficient. This will look exactly like the labelling system currently used for everything from Windows to Boilers and Washing Machines.