Document L Building Regulation Changes – Glass options
Building Regulation changes for 2022 Late 2021, building regulation changes for England were published by Government. These will com into effect from June 15th 2022. Replacement UPVC windows in existing dwellings This sector of the market will now be required to meet a minimum WER 'B' rating or 1.4W/m2.K whole window U-value including glazing. [...]