26 Sep 2016

The HEMAC Network, hosted by the Mackintosh Environmental Architecture Research Unit (MEARU) at the Glasgow School of Art, and funded by the Arts and Humanities Research Council, held its first symposium on 21st September 2016. The network aims to bridge the gap between the fields of indoor air quality, health,…

Read More

10 Sep 2016

The second in the STBA series of Masterclasses took place in September, with over 30 delegates learning from Ian Mawditt of fourwalls. Ventilation in retrofit projects is often one of the most overlooked considerations.  Yet ignoring ventilation is high risk, both in terms of occupant health and minimising moisture…

Read More

07 Apr 2016

fourwalls were part of the project team for this study, led by the Zero Carbon Hub. The study team visited 33 dwellings across 6 construction sites in 2015 to see how effectively their mechanical ventilation systems were designed, installed, commissioned and handed over to occupants. In summary, we found…

Read More

04 Mar 2016

A long time in the making, but we are pleased to announce that the MVHR meta study has now been published. The meta-study was commissioned by Innovate UK as part of the Building Performance Evaluation (BPE) Programme to provide an overview of the performance and use of whole-house heat…

Read More

29 Nov 2015

We are pleased to announce that the Bristolian’s Guide to Solid Wall Insulation was launched last week. The guidance, which includes a video and an online tool as well a the guidance document, was commissioned by Bristol City Council and led by the Sustainable and Traditional Buildings Alliance (STBA)….

Read More

22 Sep 2015

‘My fourwalls’ is a blog set up by Ian Mawditt of fourwalls to chart the progress and performance of a deep retrofit that he undertook on his own home in Bristol. His house is being monitored and he intends to continue to post energy and environmental performance data periodically….

Read More

30 Jun 2015

We need your help… fourwalls are working together with AECOM  to undertake a study of indoor air quality in naturally ventilated homes in England constructed to Part L / F 2010 of the Building Regulations. The study, which has been commissioned by the Government, will help inform future ventilation…

Read More

25 May 2015

fourwalls is pleased to be working with the Zero Carbon Hub on their In-Use Performance of Ventilation Systems in New Homes Study. The aims is to gather sufficient evidence in relation to design, installation and commissioning issues, which can lead to poor performance, both in air quality terms, and…

Read More

13 May 2015

Ian Mawditt from fourwalls presented ‘how to evaluate buildings – the lessons we have learnt from the Building Performance Evaluation programme’ at this event on behalf of Innovate UK. Watch the video here. Through the BPE programme it has become evident that new buildings are rarely evaluated and fine-tuned,…

Read More

19 Feb 2015

Ian Mawditt from fourwalls has been working in partnership with Professor Tim Sharpe from the Mackintosh Environmental Architecture Research Unit and Professor Rajat Gupta from Oxford Brookes University on a meta-study of domestic heat recovery ventilation systems. The study, funded by Innovate UK, uses project data from the recent…

Read More