Garage Conversion in Beaulieu Park, Chelmsford

 

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CWN Developments' 'blog

2013-10-31
New house air permeability test passed wth flying colours

Part L of the Building Regulations sets the energy efficiency standards for new homes and requires that a sample of new homes on all developments is tested for air leakage (also known as air tightness, air permeability or air pressure testing)
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