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Swanley - Air Testing - 020 3390 0301
The office that covers this area is: London
Do I Need An Air Leakage Test?
Domestic properties and commercial buildings over a certain size must have a passing air leakage certificate before the property can be handed over following a sale. All new buildings in England and Wales have had this requirement since 2006 and in Scotland this has been mandatory since 2010.
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. This is outlined in Part L of Government building regulations.
Planning your test in advance will help our experience air assessment team covering Swanley 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.
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.
How Many Properties Need An Air Tightness Test?
If you have 4 or less properties of the same type then only one test needs to be undertaken per type. If you have more than 4 but less than 40 dwellings of a type then you need at least two tests to be done on each type. Finally, if there are more than 40 properties of a particular type then at least 5% of each type needs to be tested UNLESS the first 5 get a passing score - then this can be dropped to just 2%.
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 Swanley 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?
Employees can still do their job inside a commercial building in Swanley, 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.
During an air test in Swanley 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.
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 Swanley.
For further Air Testing information for your area, be sure to check out Air-Testing-London.co.uk.
Our other services include:
Acoustic Testing, Part F Ventilation Testing, Thermography, SAP Conversion Calculations, Part E, SAP Calculations (TER/DER), Part G - Water Calculations, Sustainability Statements, Environmental Noise, On Construction EPC, Code 4 Sustainable Homes, SAP Extension Calculations, Energy Statements,
Air Testing can also be known as:
Air Integrity Testing, Domestic House Leakage Testing, Domestic Air Leakage Testing, Air Leakage Testing, House Leakage Testing, Domestic Fan Pressure Testing, Domestic Air Testing, Domestic Air Tightness Testing, Air Pressure Testing, Air Tightness Testing, Fan Pressure Testing, Domestic Air Integrity Testing, Domestic Air Pressure Testing,
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Company No. 06728970