Why use Energytest?
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BINDT registered– As registered members of the British Institute of Non Destructive Testing you can rest assured that our air leakage test report will be accepted as evidence for Building Regulations sign-off.
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EXPERIENCE– Our air test engineers are highly experienced in carrying out successful air leakage tests of buildings of all types and sizes.
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SUPPORT– For added piece of mind our air test engineers will be happy to assist you with free advice throughout the construction process.
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RELIABLE– Building Regulations sign-off is often time-constrained and stressful. We aim to complete every air leakage test within five working days from the point of engagement and shall attend site at a time that is convenient to you.
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COMPLIANCE– We can provide you with a single point of contact to serve all your Part L requirements. In addition to conducting your air leakage test, we can provide SAP calculations for design-stage and as-built submissions and issue an Energy Performance Certificate upon completion.
What is an air leakage test?
An air leakage test is a test to determine the level of uncontrolled air flow through gaps or cracks in the fabric of a building. The result of the air leakage test is expressed as a quantity of air leakage (m3 per hour) per square metre of building envelope.
The general requirement of Approved Document L1A is that each dwelling tested must achieve a maximum air permeability rate of 10m3/h/m2. However, in order to comply with the carbon emission target a lower air permeability rate may be required. The required air permeability rate for each dwelling can be found on the design-stage SAP report for that dwelling.
Too much air leakage leads to unnecessary heat loss (and consequently, higher CO2 emissions) and can lead to discomfort to the occupants through cold draughts.
