Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...more
Point of Reference
10 dBA is the sound level of normal human breathing. To put it into perspective, thunder is a whopping 120 dBA...more
Strood - Air Testing - 020 3390 0301
The office that covers this area is: London
Do I Need An Air Leakage Test?
Planning your test in advance will help our experience air assessment team covering Strood 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.
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.
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.
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%
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 Strood.
Employees can still do their job inside a commercial building in Strood, 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.
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.
What Air Permeability Rating Do I Need?
A passing score in Strood 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 Air Testing information for your area, be sure to check out Air-Testing-London.co.uk.
Our other services include:
Thermography, Energy Statements, Sustainability Statements, On Construction EPC, Acoustic Testing, Part F Ventilation Testing, Environmental Noise, Part G - Water Calculations, SAP Calculations (TER/DER), Code 4 Sustainable Homes, Part E, SAP Conversion Calculations, SAP Extension Calculations,
Air Testing can also be known as:
Domestic Air Pressure Testing, Domestic Fan Pressure Testing, House Leakage Testing, Domestic Air Integrity Testing, Fan Pressure Testing, Air Pressure Testing, Domestic Air Testing, Domestic House Leakage Testing, Air Tightness Testing, Air Leakage Testing, Domestic Air Tightness Testing, Domestic Air Leakage Testing, Air Integrity Testing,
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