A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more
The Decibel Scale
Gives an approx of human perception of loudness. This is because the human ear has a logarithmic response to changes in sound level...more
Ventnor - Air Testing - 0239 366 0106
The office that covers this area is: Portsmouth
What Air Permeability Rating Do I Need?
A passing score in Ventnor 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.
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?
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?
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 Ventnor. 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 Ventnor 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 Ventnor, 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.
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.
Planning your test in advance will help our experience air assessment team covering Ventnor 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.
For further Air Testing information for your area, be sure to check out Air-Testing-Portsmouth.co.uk.
Our other services include:
Acoustic Testing, SAP Extension Calculations, Part G - Water Calculations, Sustainability Statements, Thermography, On Construction EPC, SAP Conversion Calculations, SAP Calculations (TER/DER), Part F Ventilation Testing, Part E, Energy Statements, Code 4 Sustainable Homes, Environmental Noise,
Air Testing can also be known as:
Air Leakage Testing, Domestic Air Leakage Testing, Domestic Air Integrity Testing, Air Integrity Testing, Domestic Air Testing, Fan Pressure Testing, Air Tightness Testing, Domestic House Leakage Testing, Domestic Air Pressure Testing, House Leakage Testing, Air Pressure Testing, Domestic Air Tightness Testing, Domestic Fan Pressure Testing,
Copyright 2019 E2 Specialist Consultants Limited
Company No. 06728970