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This is not true? L1A, L1B, L2A, and L2B exceed american insulation regulations by a huge amount, and they exceed the EU regulations as well. I did some roofing once upon a time.
This is not true? L1A, L1B, L2A, and L2B exceed american insulation regulations by a huge amount, and they exceed the EU regulations as well. I did some roofing once upon a time.
Most houses in the UK are not new builds, that’s the issue.