BFRC Score The BFRC are quite possibly the most dependable window and doorway Electricity performance assessors in britain. A++ energy ranking A+ Vitality ranking A energy ranking B Electrical power rating BFRC Rating The BFRC are essentially the most dependable window and door Vitality efficiency assessors in the united kingdom. https://www.apptape.co.uk/blog/dec-advantages-of-window-tinting-films/