Window ratings explained
Window Energy Ratings were created to offer a more reliable and relevant measure of the total performance of windows than the traditional measure of U- value.
The British Fenestration Ratings Council (BFRC) window energy rating scheme checks allthe components to ensure the final window achieves the energy efficient standard claimed. That includes:
- The heat loss through the frame material
The surface coatings on the glass to reflect or trap energy
The air leakage between the moving opening parts of windows
The solar gain it can expect during the year
With this system, A is best and G is the lowest performing window. The higher the energy rating, the more energy efficient it is.
To put this into context, latest Building Regulations require all new homes in England and Wales to have windows with a minimum ‘C’ WER rating.
Securahome fits ‘A’ rated windows as standard. The windows are manufactured and rigorously tested to withstand the European climate, keeping you warm, safe and comfortable in your home, whatever our British weather throws at us!