BFRC Rating The BFRC are quite possibly the most dependable window and doorway Vitality performance assessors in britain. A++ Electricity score A+ energy rating A Electricity rating B Power ranking BFRC Ranking The BFRC are probably the most trusted window and doorway Electricity effectiveness assessors in the united kingdom. A++ https://www.apptape.co.uk/blog/dec-advantages-of-window-tinting-films/