Window Energy Ratings (Energy-Efficient Glass)
Window Energy Ratings
Window Energy Ratings tell you how energy-efficient your windows are. The rating system is based on a scale of A ++ to G, with A ++ rated windows being the most energy-efficient. The scheme is similar to the energy ratings you will find on household appliances, white goods and light bulbs.
Considering the fact that up to 25% of the heat within most homes escapes through the windows, it’s easy to see why more and more people are opting for A-rated windows by installing energy-efficient glass into their existing window frames.
The Pilkington energiKare™ insulating glass unit uses a glass from the Pilkington K Glass™ or Pilkington Optitherm™ range
for the inner pane and, Pilkington Optiwhite™ for the outer pane. Pilkington Optiwhite™ is an “extra clear” glass, which allows more sunlight and solar heat to enter your home from the outside. By using a combination of these two special types of glass Pilkington energiKare™ is one of the leading insulating glass units, and when installed in an appropriate frame can achieve a Window Energy Rating of band A or higher.
Pilkington energiKare™ insulating glass units can be installed into most types of existing window frames. Find your nearest Pilkington energiKare™ installer here.
For more information on Window Energy Ratings visit the British Fenestration Ratings Council website.