Indoor air quality, airtightness and ventilation – a challenging balancing act - Bristol

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Book now for this very well-received event with a panel of expert speakers. Free Zero Carbon Hub guides x 4 for all attendees!
  • Does an airtight building result in an unhealthy internal environment?
  • What are the health consequences of poor indoor air quality?
  • What ventilation solutions are there to protect the occupants?

Indoor air quality, airtightness and ventilation – a challenging balancing act

In the past, under-ventilation of buildings was not seen to be much of an issue due to the unintended gaps in the external envelope providing plenty of fresh air to the occupants.

However due to improved workmanship, higher airtightness standards and legislative requirements, newer buildings are more airtight resulting in less uncontrolled fresh air entering buildings.

Improved airtight standards are to be welcomed as they reduce heat loss, lower carbon emissions and create a more comfortable internal environment but there is an increasing amount of concern that as we tighten up our buildings we are we creating unhealthy indoor environments that affect the well being of the occupants. The implications of poor indoor air quality (IAQ) can be very serious - sick building syndrome, reduced productivity in offices and poor learning in schools.

Speakers at this seminar will discuss the main problem areas, present case studies illustrating good practice and outline solutions including the recently launched Building Services Guide by the Zero Carbon Hub.


09.00     Registration and coffee
09.25     Introduction: Lucy Pedler, The Green Register
09.30     Why is ventilation becoming so important: Ian Mawditt, Four Walls
10.15     Pollutants and source control: Derrick Crump, UKIEG
11.00     Refreshments
11.25     Natural or mechanical ventilation? Evidence from recent studies: Ian Mawditt, Four Walls
12.05     Q&A Session
12.30     Lunch
13.30     Ventilation in non-domestic buildings –post occupancy evaluation studies on the user experience - Kev Couling, AECOM
14.20     The Zero Carbon Hub Services Guide: Lucy Pedler, The Green Register
14.45     Effective Ventilation and the control of Indoor Air Quality: Simon Jones, Aereco 
15.30     Refreshments
16.00     Debate - speakers and delegates to discuss the following questions:  
  • What levels of ventilation are appropriate?
  • What should the balance be between ventilation and source control?
  • What metrics should we be using to measure air quality?
16.30     Close

Please note speakers and timings are subject to change.

All delegates receive free copies of 4 Zero Carbon Hub guides:

  • The Builder's Book
  • Thermal Bridging Guide
  • Services Guide
  • SAP Untangled


Book 3 places at this event and get the 3rd place free. Book your places online as normal and we will deduct the cost of the 3rd place once your booking is received. This offer may not be used in conjunction with other offers.

What did previous delegates say about this event when held in London this summer?

​“Terrific event and fantastic to hear about so much really thorough research”
Kate de Selincourt, Sustainable Building Writer and Editor

“Useful evidence based research – good quality and informative with experts in field ... Brilliant event!”
Clare Murray, Levitt Bernstein

"The speakers were excellent!” [TGR Q: Any Improvements that could be made?] “None, I was very impressed”
Sara Ladkani, Sheppard Robson

“Useful level of insight to the issues from experts in their field. All of it [was useful]. Really liked panel at the end too.”
Cath Hassell, ech2o consultants ltd

"Useful practicalities of how to address air quality issues and respond to user problems.”
Duncan Reynolds, Churchill Hui

What did you find most useful? “All of it”
Mike Mundell

This event is held with support from:


Thanks to partners:

March 22nd, 2017 9:00 AM   to   4:30 PM
Create Centre
Smeaton Road
Bristol, BS1 6XN
United Kingdom

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Event Fee(s)
Members (TGR / ASBP / Passivhaus Trust / BSRIA) £ 99.00
Non-Members £ 149.00
Non-members Early bird rate (book before 28th Feb) £ 135.00
Members £ 99.00
Members £ 99.00
Non-Members £ 149.00
Non-Members £ 149.00

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