Offices Nationwide 

Bristol - Air Pressure Testing - 0117 212 0189

The office that covers this area is: Cardiff

Phone Number: 0117 212 0189 Email: bristol@e2consultants.co.uk

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?

A passing score in Bristol 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.

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.

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.

We offer air leakage testing throughout Bristol 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.

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 Does An Air Leakage Test Involve?

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 Bristol.

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.

During an air test in Bristol 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.

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

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

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

E2 Specialist Consultants
March 22 at 2:33pm
A domestic thermal survey in Birmingham is on the cards to find heat loss. Our engineer will then walk around the property pointing out problem areas and images will be sent across to the client as evidence. For more info try our dedicated thermal site: https://bit.ly/2Ft1yyy

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