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Part L1B - Conservation of fuel and power in Existing Dwellings

This approved document gives guidance for compliance with the Building Regulations for building work carried out in England which applies to existing dwellings including alterations, conversions and extensions.

E2 Specialist Consultants
August 13 at 1:29pm
Today takes 2 of our engineers, air testing this enormous modular classroom in Tring, It took 4 fans to test this space and unfortunately resulted in a Fail. Remedial sealing will be required to areas that we have identified as leaking cold air infiltration. #preperationiskey

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