BFRC Rating The BFRC are by far the most reliable window and door Electrical power efficiency assessors in the UK. A++ Power rating A+ Vitality rating A Vitality score B Vitality ranking BFRC Rating The BFRC are probably the most dependable window and door energy general performance assessors in britain. https://bookmarkinginfo.com/story18877279/indicators-on-window-tinting-film-you-should-know