Offices Nationwide 

Air Leaking Testing Across the UK

What Air Permeability Rating Do I Need?

Your air permeability rating resembles the amount of uncontrolled air that's leaking from the dwelling. A passing score in the UK is 10 m³/(h.m²). If the air test fails, we will help you identify where these leakage areas occur in the hope that a passing rate will be achieved following a re-test.

What Does An Air Leakage Test Involve?

Air tests cannot be carried out if the wind speed is more than 13mph - 3 metres per second is the ideal wind speed when undertaking an air test in the UK. An air test involves placing a large fan, or several fans, to an opening within the property; usually a doorway. The fans will increase and decrease in speed that will in-turn change the building's air pressure and record the results.

During an air test in the UK the pressure of the room will be tested and as such all windows and doors that lead outside must be securely closed to avoid them swinging open and the test being abandoned. Similarly, all internal doors should be wedged open to avoid being slammed shut. Furniture will not be affected during the test, but smaller items such as paper must be held down or removed completely so they're not blown about.

There should be no outside access once the test has begun for approximately 90 minutes so plan accordingly. Workers can still do their job inside the property, within reason, though may feel some discomfort due to the noise of the fan and the draught that will be felt throughout the building.

When Should The Test Take Place?

A building envelope will need to be completed before the air test takes place - which should be one of the last surveys undertaken once all the walls, windows, doors etc. are complete and sealed. This ensures no air will escape and prevent drafts through the property which will in-turn improve your air permeability score.

Do I Need An Air Leakage Test?

Part L of the Government building regulations explains that on a large plot of new houses that are built to a similar specification, only a sample of the houses will need to be air tested.

All new buildings in England and Wales have had a mandatory requirement since 2006 (2010 in Scotland) that domestic and commercial buildings, over a certain size, must have a passing air leakage certificate before the property can be sold.

We offer air leakage testing throughout the UK where our experienced assessors will be happy to offer advice on the best ways to gain your air permeability rating. Planning your test in advance will help us determine how many tests you'll need ahead of time per property.

How Many Properties Need An Air Tightness Test?

The number of tests required are as follows:

  • 4 or less properties of the same type: one test needed per type
  • More than 4 but less than 40 dwellings of a type: at least two tests of each type
  • More than 40 properties of a type: 5% of each type UNLESS the first 5 get a passing score - then this can be dropped to just 2%

For further Air-Testing information for your area, be sure to check out Air-Testing-.co.uk.

E2 Specialist Consultants
July 22 at 5:05pm
One of our office-based consultants is hard at work on the SBEM calculation for a commercial new build in Bristol, Avon. You can get yourself an SBEM quote from our website: https://www.e2consultants.co.uk/Get-A-Quote/SBEM_Calculations

E2 Consultants Delivering compliance solutions for Architects & Developers    Head Office E2 HOUSE, South Park Way, Wakefield 41 Business Park, WF2 0XJ    Questions? Call: 0800 043 8100

» » »
Air Testing
» Domestic Services » Air Testing

In Area A

Domestic AIR Tightness Testing in Abbots Bromley, Domestic AIR Tightness Testing in Abbots Langley, Domestic AIR Tightness Testing in Abbotsbury, Domestic AIR Tightness Testing in Abbotskerswell, Domestic AIR Tightness Testing in Aberaeron, Domestic AIR Tightness Testing in Aberdare, Domestic AIR Tightness Testing in Aberdeen, Domestic AIR Tightness Testing in Aberfeldy, Domestic AIR Tightness Testing in Aberffraw, Domestic AIR Tightness Testing in Aberfoyle, Domestic AIR Tightness Testing in Abergavenny, Domestic AIR Tightness Testing in Abergele, Domestic AIR Tightness Testing in Aberlour, Domestic AIR Tightness Testing in Abersoch, Domestic AIR Tightness Testing in Abertillery, Domestic AIR Tightness Testing in Aberton, Domestic AIR Tightness Testing in Aberystwyth, Domestic AIR Tightness Testing in Abingdon, Domestic AIR Tightness Testing in Abinger Common, Domestic AIR Tightness Testing in Above Church, Domestic AIR Tightness Testing in Aboyne, Domestic AIR Tightness Testing in Accrington, Domestic AIR Tightness Testing in Acle, Domestic AIR Tightness Testing in Acton, Domestic AIR Tightness Testing in Acton Trussell, Domestic AIR Tightness Testing in Adbaston, Domestic AIR Tightness Testing in Addlestone, Domestic AIR Tightness Testing in Adlington, Domestic AIR Tightness Testing in Adwick le Street, Domestic AIR Tightness Testing in Aigburth, Domestic AIR Tightness Testing in Aintree, Domestic AIR Tightness Testing in Airdrie, Domestic AIR Tightness Testing in Albrighton, Domestic AIR Tightness Testing in Albury, Domestic AIR Tightness Testing in Alcester, Domestic AIR Tightness Testing in Aldbourne, Domestic AIR Tightness Testing in Aldeburgh, Domestic AIR Tightness Testing in Alderbury, Domestic AIR Tightness Testing in Alderley Edge, Domestic AIR Tightness Testing in Aldershot, Domestic AIR Tightness Testing in Aldridge, Domestic AIR Tightness Testing in Alexandria, Domestic AIR Tightness Testing in Alfold, Domestic AIR Tightness Testing in Alford, Domestic AIR Tightness Testing in Alford, Domestic AIR Tightness Testing in Alfreton, Domestic AIR Tightness Testing in Alfrick, Domestic AIR Tightness Testing in Alfriston, Domestic AIR Tightness Testing in Allerton, Domestic AIR Tightness Testing in Allgreave, Domestic AIR Tightness Testing in Allington, Domestic AIR Tightness Testing in Alloa, Domestic AIR Tightness Testing in Alness, Domestic AIR Tightness Testing in Alnmouth, Domestic AIR Tightness Testing in Alnwick, Domestic AIR Tightness Testing in Alsager, Domestic AIR Tightness Testing in Alston, Domestic AIR Tightness Testing in Altincham, Domestic AIR Tightness Testing in Alton, Domestic AIR Tightness Testing in Alton, Domestic AIR Tightness Testing in Alva, Domestic AIR Tightness Testing in Alvechurch, Domestic AIR Tightness Testing in Alverton, Domestic AIR Tightness Testing in Alyth, Domestic AIR Tightness Testing in Amble, Domestic AIR Tightness Testing in Ambleside, Domestic AIR Tightness Testing in Amersham, Domestic AIR Tightness Testing in Amesbury, Domestic AIR Tightness Testing in Amington, Domestic AIR Tightness Testing in Amlwch, Domestic AIR Tightness Testing in Ammanford, Domestic AIR Tightness Testing in Ampthill, Domestic AIR Tightness Testing in Andover, Domestic AIR Tightness Testing in Anerley, Domestic AIR Tightness Testing in Anfield, Domestic AIR Tightness Testing in Angmering, Domestic AIR Tightness Testing in Annan, Domestic AIR Tightness Testing in Annesley, Domestic AIR Tightness Testing in Anslow, Domestic AIR Tightness Testing in Anstruther, Domestic AIR Tightness Testing in Ansty, Domestic AIR Tightness Testing in Antrim, Domestic AIR Tightness Testing in Appleby in Westmorland, Domestic AIR Tightness Testing in Arbroath, Domestic AIR Tightness Testing in Ardfern, Domestic AIR Tightness Testing in Ardrossan, Domestic AIR Tightness Testing in Arlesey, Domestic AIR Tightness Testing in Arlesford, Domestic AIR Tightness Testing in Armadale, Domestic AIR Tightness Testing in Armagh, Domestic AIR Tightness Testing in Armitage, Domestic AIR Tightness Testing in Armthorpe, Domestic AIR Tightness Testing in Arnside, Domestic AIR Tightness Testing in Arrochar, Domestic AIR Tightness Testing in Artington, Domestic AIR Tightness Testing in Arundel, Domestic AIR Tightness Testing in Ascot, Domestic AIR Tightness Testing in Ash, Domestic AIR Tightness Testing in Ash, Domestic AIR Tightness Testing in Ashbourne, Domestic AIR Tightness Testing in Ashburton, Domestic AIR Tightness Testing in Ashby de la Zouch, Domestic AIR Tightness Testing in Ashford, Domestic AIR Tightness Testing in Ashford, Domestic AIR Tightness Testing in Ashington, Domestic AIR Tightness Testing in Ashley, Domestic AIR Tightness Testing in Ashtead, Domestic AIR Tightness Testing in Ashton, Domestic AIR Tightness Testing in Ashton in Makerfield, Domestic AIR Tightness Testing in Ashton Under Lyne, Domestic AIR Tightness Testing in Ashton-under-Hill, Domestic AIR Tightness Testing in Askham, Domestic AIR Tightness Testing in Aslockton, Domestic AIR Tightness Testing in Astley Cross, Domestic AIR Tightness Testing in Atherstone, Domestic AIR Tightness Testing in Atherstone, Domestic AIR Tightness Testing in Atherton, Domestic AIR Tightness Testing in Attleborough, Domestic AIR Tightness Testing in Auchterarder, Domestic AIR Tightness Testing in Auchtermuchty, Domestic AIR Tightness Testing in Averham, Domestic AIR Tightness Testing in Aviemore, Domestic AIR Tightness Testing in Avonmouth, Domestic AIR Tightness Testing in Awsworth, Domestic AIR Tightness Testing in Axborough, Domestic AIR Tightness Testing in Axbridge, Domestic AIR Tightness Testing in Axford, Domestic AIR Tightness Testing in Axminster, Domestic AIR Tightness Testing in Aylesbury, Domestic AIR Tightness Testing in Aylesford, Domestic AIR Tightness Testing in Aylsham, Domestic AIR Tightness Testing in Ayr,