Ventilation Testing, also called Extract Testing, is now a requirement for all new builds in the UK, as per Part F of the Building regs. The process involves evaluation of the mechanical air flow rates, taking things like trickle vents and extractor fans into account.

Why are Ventilation Tests required in the UK?

It all boils down to the health of the building’s occupants. Builders have become comfortable with the requirements for achieving low air test scores, but this has increased the necessity to ensure correctly sized purpose ventilation systems are installed – which function as they should do. It’s all well and good to have a nice air-tight build which achieves a great air leakage score, but it needs to be properly ventilated or people will have breathing difficulties.

What’s more, if an extract unit is installed in a place where a lot of water vapour and pollutants are released, it needs to be removed to stop the spread to the rest of the building. Long-term impacts of dampness and mould can have serious effects on a person’s health, as we touched on in this article:build tight, ventilate right.

How can you help to
Achieve Compliance?

There are a few ways you can help to achieve compliance with the regulations to avoid reruns and hold ups in the process. Before the test:

  • Ensure that all trickle vents are installed correctly. Ideally, there should be one trickle vent per window and two for double windows

  • Ensure that all extractor fans and cooker hoods are functioning correctly – if they’re faulty, the testing becomes a lot more difficult

  • Check that there is at least a 10mm undercut for each internal door

Choose Purple Energy
for your Ventilation Test

We have a wealth of experience in all things relating to air quality and certification of new builds, and our experts keep things simple to get the job done.

  • We offer practical advice before the test to give you the best possible chance of passing first-time.

  • Our services are nationwide, and our prices are more-than-competitive. We offer discounts for Ventilation testing when combined with air tightness testing, and in some cases we can even take care of both tests at the same time.

  • All of our engineers are CSCS certified, and use the highest-quality, calibrated equipment to ensure accuracy in results.

If there is anything you feel unclear about or you simply want to speak to one of our team members, don’t hesitate to give our office a call.