Window Ratings Explained
Thermal efficiency has never been more important and, in order to make the most of your home improvement investment, it’s vital to get to grips with Window Energy Ratings.
Window Energy Ratings (WER) were created to offer reliable, relevant and easy to understand measures of the total performance of windows rather than the traditional measure of U-value.
With the WER system, ‘A’ is the highest and ‘G’ is the lowest performing window for energy efficiency (similar to the ratings that you find on domestic appliances like washing machines).
To decide on a WER, the British Fenestration Ratings Council (BFRC) has created a system that checks all the components to ensure the final product reaches the energy efficient standard claimed.
- Heat loss through the frame material.
- Surface coatings on the glass to reflect or trap energy.
- Air leakage between the moving, opening parts of the window.
- Solar gain it can expect during the year.
Building regulations currently require all new homes in England and Wales to have windows with a minimum ‘C’ WER rating.
At Securahome we fit ‘A’ rated windows as standard. Our windows are rigorously tested to withstand the European climate, keeping you warm, safe and comfortable in your home, whatever the weather.