What Window Energy Ratings (WERs) should trade buyers look for in sealed glass units?

Trade buyers should choose high performance sealed glass units with an A+ or A++ window energy rating (WER) to meet energy efficiency standards. A high window energy rating (WER) improves thermal performance, helping installers offer better efficiency to customers. Always check the specifications of your window energy rating (WER) glass units to ensure compliance with Building Regulations.

U-Values WER - Window Energy Rating Sealant Desiccant Gas Spacers Manufacture Product