Offices Nationwide
Air Testing
As part of thermographic surveys we can also use an air Pressure testing kit to depressurise the building and help detect any air leakage within the property..more
Air Testing & Leakage
We can offer additional services at discounted rates along side our tests! These are Sound Testing and Part F. Ask our Consultants for more
Part L1A
Conservation of fuel and power IN NEW DWELLINGS
Guidance for compliance for building work carried out that applies to New Dwellings.
Air Testing is sometimes referred to as Domestic Air pressure tests, Domestic Air tightness tests, Domestic Air tests, Domestic Air pressure testing, Domestic Air tightness testing, Domestic Air leakage testing.
Air Leaking Testing Across the UK
When Should The Test Take Place?
For obvious reasons, an air pressure test is generally one of the last surveys to be undertaken once all the walls, windows, doors etc. are complete and sealed to stop any air escaping and prevent drafts through the property. The building envelope will also need to be completed.
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%
Do I Need An Air Leakage Test?
Planning your test in advance will help our experience air assessment team covering the UK to determine how many tests you'll need ahead of time per property and will be happy to offer advice on the best ways to gain your air permeability rating.
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.
What Does An Air Leakage Test Involve?
Whilst the air tightness test is being undertaken, furniture will not be affected but smaller items such as paper must be held down or removed completely so they're not blown about. 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.
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. Please note: an air test cannot be carried out if wind speed is more than 13mph. 3 metres per second is the ideal wind speed when undertaking an air test in the UK.
Employees can still do their job inside a commercial building in the UK, within reason, though may feel some discomfort due to the noise of the fan and the draught that will be felt throughout the building. There should be no outside access once the test has begun - which lasts for approximately 90 minutes, so plan accordingly.
What Air Permeability Rating Do I Need?
A passing score in the UK is 10 m³/(h.m²) for an air permeability rating which resembles the amount of uncontrolled air that's leaking from the dwelling. Should the test fail, our air tightness team will help you identify where the leakages are happening in the hope that a passing score will be achieved after a re-test.
For further House-Leakage-Testing information for your area, be sure to check out Air-Testing-.co.uk.
Copyright 2024 E2 Specialist Consultants Limited
Company No. 06728970
In Area D
Domestic Air leakage testing in Dagenham, Domestic Air leakage testing in Dalbeattie, Domestic Air leakage testing in Dalkeith, Domestic Air leakage testing in Dalry, Domestic Air leakage testing in Dalton in Furness, Domestic Air leakage testing in Danbury, Domestic Air leakage testing in Darlington, Domestic Air leakage testing in Dartford, Domestic Air leakage testing in Dartmouth, Domestic Air leakage testing in Darwen, Domestic Air leakage testing in Datchet, Domestic Air leakage testing in Daventry, Domestic Air leakage testing in Dawlish, Domestic Air leakage testing in Deal, Domestic Air leakage testing in Defford, Domestic Air leakage testing in Denbigh, Domestic Air leakage testing in Denny, Domestic Air leakage testing in Denstone, Domestic Air leakage testing in Denton, Domestic Air leakage testing in Deptford, Domestic Air leakage testing in Derby, Domestic Air leakage testing in Dereham, Domestic Air leakage testing in Devizes, Domestic Air leakage testing in Dewsbury, Domestic Air leakage testing in Didcot, Domestic Air leakage testing in Dinas Powys, Domestic Air leakage testing in Dingle, Domestic Air leakage testing in Dingwall, Domestic Air leakage testing in Dinnington, Domestic Air leakage testing in Diss, Domestic Air leakage testing in Dobwalls, Domestic Air leakage testing in Dolgellau, Domestic Air leakage testing in Dolla, Domestic Air leakage testing in Donaghadee, Domestic Air leakage testing in Doncaster, Domestic Air leakage testing in Dorchester, Domestic Air leakage testing in Dorchester, Domestic Air leakage testing in Dorking, Domestic Air leakage testing in Dornoch, Domestic Air leakage testing in Douglas, Domestic Air leakage testing in Douglas, Domestic Air leakage testing in Dover, Domestic Air leakage testing in Downham Market, Domestic Air leakage testing in Downpatrick, Domestic Air leakage testing in Downton, Domestic Air leakage testing in Drayton, Domestic Air leakage testing in Driffield, Domestic Air leakage testing in Droitwich, Domestic Air leakage testing in Dromore, Domestic Air leakage testing in Dronfield, Domestic Air leakage testing in Droylsden, Domestic Air leakage testing in Drymen, Domestic Air leakage testing in Dudley, Domestic Air leakage testing in Dudley, Domestic Air leakage testing in Dufftown, Domestic Air leakage testing in Dukinfield, Domestic Air leakage testing in Dulverton, Domestic Air leakage testing in Dulwich, Domestic Air leakage testing in Dumbarton, Domestic Air leakage testing in Dumfries, Domestic Air leakage testing in Dunbar, Domestic Air leakage testing in Dunblane, Domestic Air leakage testing in Dunchurch, Domestic Air leakage testing in Dundee, Domestic Air leakage testing in Dunfermline, Domestic Air leakage testing in Dungannon, Domestic Air leakage testing in Dungeness, Domestic Air leakage testing in Dunhampton, Domestic Air leakage testing in Dunkeld, Domestic Air leakage testing in Dunmow, Domestic Air leakage testing in Dunoon, Domestic Air leakage testing in Duns, Domestic Air leakage testing in Dunsfold, Domestic Air leakage testing in Dunstable, Domestic Air leakage testing in Dunster, Domestic Air leakage testing in Dunwich, Domestic Air leakage testing in Durham, Domestic Air leakage testing in Dursley, Domestic Air leakage testing in Duxford, Domestic Air leakage testing in Dyce, Domestic Air leakage testing in Dymchurch,