Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...more
Sound intensity's measured in Decibels (dB). An logarithmic scale where an increase of 10 dB gives an apparent doubling of loudness...more
Sheffield - Air Testing - 0114 368 0192
What Does An Air Leakage Test Involve?
During an air test in Sheffield 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.
Employees can still do their job inside a commercial building in Sheffield, 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.
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 Sheffield. 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.
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 Sheffield 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.
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%.
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.
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.
Planning your test in advance will help our experience air assessment team covering Sheffield 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.
For further Air Testing information for your area, be sure to check out Air-Testing-Sheffield.co.uk.
Our other services include:
SAP Conversion Calculations, On Construction EPC, SAP Calculations (TER/DER), Part F Ventilation Testing, Code 4 Sustainable Homes, Energy Statements, Acoustic Testing, SAP Extension Calculations, Environmental Noise, Part E, Thermography, Sustainability Statements, Part G - Water Calculations,
Air Testing can also be known as:
Air Leakage Testing, Fan Pressure Testing, Domestic Air Leakage Testing, Air Tightness Testing, Air Integrity Testing, Domestic Air Tightness Testing, House Leakage Testing, Air Pressure Testing, Domestic House Leakage Testing, Domestic Air Integrity Testing, Domestic Air Testing, Domestic Fan Pressure Testing, Domestic Air Pressure Testing,
Copyright 2019 E2 Specialist Consultants Limited
Company No. 06728970