Changes to Part L of the Building Regulations are likely to intensify testing demand in the run up to the 31 December deadline for UKCA certification. The warning comes after recently implemented changes to Part L, which took effect on 15 June.

As part of a shift towards lowering domestic CO2 production through the Future Building Standard, all new doors and windows entering the market must meet new mandated U-values.

However, any existing products currently on the market which meet the new mandated U-values must still achieve UKCA marking in order to be sold in the UK from 1 January 2023.

The requirement is likely to affect hundreds of products manufactured outside of the UK, even if they have achieved CE marking in the country of manufacture.

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