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Windows Energy Ratings

Window Energy Ratings (WERs) were introduced as a means to demonstrate compliance with Part L of the Building Regulations during 2006 and their use has grown rapidly. WERs use a scale advising a homeowner of the level of energy efficiency achieved by a given window.

This label can be adhered to windows once they have achieved a rating as confirmed by the scheme provider; British Fenestration Rating Council (BFRC), British Standards Institution (BSI) or Thermal Rating Register (TRR). It uses a format which is familiar to householders because a similar scheme has been used to rate appliances such as fridges and washing machines for a number of years.

Energy efficiency is an important factor which is gradually being considered by more people as they shop for products. Having a highly rated window therefore gives the window company a beneficial selling tool. When used in conjunction with most good profile systems, Pilkington energiKare™ will achieve a WER of at least C and can achieve up to band A.