Offices Nationwide 

Wrexham - Air Testing - 01978 633 079

The counties covered by this office are:
Flintshire, Gwynedd County, Denbighshire, Conwy County, Wrexham County, ,

Phone Number: 01978 633 079 Email: wrexham@e2consultants.co.uk

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.

We offer air leakage testing throughout Wrexham where our experienced assessors will be happy to offer advice on the best ways to gain your air permeability rating. Planning your test in advance will help us determine how many tests you'll need ahead of time per property.

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.

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 Wrexham 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?

There should be no outside access once the test has begun for approximately 90 minutes so plan accordingly. Workers can still do their job inside the property, within reason, though may feel some discomfort due to the noise of the fan and the draught that will be felt throughout the building.

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 Wrexham.

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%.

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.

For further Air Testing information for your area, be sure to check out Air-Testing-Wrexham.co.uk.

Our other services include:
Part F Ventilation Testing, Sustainability Statements, Part E, SAP Extension Calculations, Part G - Water Calculations, SAP Calculations (TER/DER), Energy Statements, Environmental Noise, SAP Conversion Calculations, Code 4 Sustainable Homes, Thermography, Acoustic Testing, On Construction EPC,

Air Testing can also be known as:
Domestic Fan Pressure Testing, Air Integrity Testing, Domestic Air Tightness Testing, Domestic House Leakage Testing, Domestic Air Pressure Testing, House Leakage Testing, Domestic Air Leakage Testing, Air Tightness Testing, Domestic Air Integrity Testing, Domestic Air Testing, Air Pressure Testing, Air Leakage Testing, Fan Pressure Testing,

E2 Specialist Consultants
June 19 at 5:17pm
An office-based E2 consultant is working on the SAP calculation and EPC for a domestic new build in North Wales. For all your SAP needs in North Wales, visit our dedicated site: https://www.sap-calculations-north-wales.co.uk

E2 Consultants Delivering compliance solutions for Architects & Developers    Head Office E2 HOUSE, South Park Way, Wakefield 41 Business Park, WF2 0XJ    Questions? Call: 0800 043 8100