Pressure Testing England and Wales - Blower Door Test according L1a

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Information to Pressure Tests / Blower Door Tests

With the aim to reduce todays CO2 emissions and to improve the energy efficiency of new homes, our building regulations undergo some eminent changes which oblige house builders to increase the performance of their dwellings. In order to comply with Building Regulations April 2006 part L1A (for England & Wales), all newly built homes must undergo a mandatory Air Permeability Test prior to occupation. This is also known as air tightness testing, pressure testing, air leakage testing or the blower door test.

Tests have to be carried out by an approved tester registered with the British Institute of Non-Destructive Testing (BINDT). Sustainable Homes Scotland has BINDT registered engineers and can provide fully complaint Building Regulation L1A testing and certification to the required ATTMA ‘TS1’ standard.

SHS operate on a nationwide basis for residential dwellings.

Green House Advancing:
If you are interested in making your home more energy efficient, we are happy to test existing homes to identify your main areas of energy loss – thus resulting in a more comfortable, more economic and more sustainable home.

London

Leeds

Cardiff

Newcastle

Reading

Gillingham

Darlington

Plymouth

Exeter

Bournemouth

Peterborough

Northampton

Norwich

Birmingham

Bristol

Also Covering:

Manchester Manchester Oxford Swansea Gloucester Portsmouth Luton Ipswich Wolverhampton Swindon Southport Liverpool Preston Nottingham Grimsby Sunderland Middlesbrough Stoke-On-Trent Leicester Brighton Eastbourne Chelmsford Southend On Sea.

 

Why is testing for Air Leakage necessary?
Most of the air leakage paths through the building fabric cannot be detected by visual inspection as they are often obscured by internal building finishes or external cladding. The only satisfactory way to show that a building fabric is reasonably airtight is to measure the rate permeability / leakage.

L1a approved Pressure Tester

 

Keeping your Home Air Tight

In contrast to controlled ventilation, air leakage is the migration of uncontrolled air to and from a building, which does not have a design purpose such as providing fresh air. It is the flow of air through gaps and cracks in the fabric of the building (sometimes referred to as infiltration or draughts).
Too much air leakage leads to unnecessary heat loss and discomfort for the occupants from cold draughts.



Obligatory L1A Pressure Test:
Building Regulations Part L1A for new dwellings came into force in April 2006, requiring that standards of air tightness in new dwellings are both achieved and proven by the means of Air Permeability Testing and certification.

© 2008 Sustainable Homes Scotland