THE CLIMATE CHALLENGE; APPOINTMENTS & NEWS 35


incorporated as part of the building design to provide shade to windows including extended roof eaves, balconies, upper floor eternal walkways, deep window reveals and the addition of brise soleil are all highly effective at blocking out high-angle summer sun. External roller blinds and shutters are another option more often seen in continental Europe; shutters can be opened and blinds retracted when shading is not required to maintain views out. CIBSE Technical Memorandum ‘TM37: Design for improved solar shading control,’ outlines options designers have in addressing solar gains. Solar control glazing can also be used to reduce solar gains, although this has the disadvantage that it will also reduce heat gains in winter when they can contribute to meeting space heating demand.


Internal blinds are another option, although less effective. CIBSE’s ‘Technical Memorandum Dynamic thermal modelling of basic blinds (TM69: 2022)’ recognises the role of internal shading in reducing indoor air temperatures along with the impact blinds have on internal daylight levels.


Increased ventilation is another mitigation option for overheating.


Opening windows is a cheap and effective way to expel heat from a dwelling, but only when outside temperatures are cooler than those inside, such as early morning. The option to open windows, however, is less than ideal for dwellings in noisy or polluted locations or where safety or security considerations prevent windows being opened wide. Of course, as the climate warms and outside temperatures rise, the effectiveness of natural ventilation in preventing overheating will diminish.


As summer temperatures in the UK continue their inexorable rise, tackling overheating in existing homes will become increasingly important. The EAC, called for Part O to be expanded to cover refurbishments of existing properties as well as material changes of use to residential properties. The committee is also calling for “a comprehensive national heat resilience strategy.” CIBSE is one of the leading sources of guidance on dealing with overheating. It is ready to work with the Government to make the built environment more climate resilient. For more information on CIBSE go to www.cibse.org


Dr Anastasia Mylona is technical director at CIBSE


Introducing Aluminium Systems Ltd


Based near Hinkley in Leicestershire, Aluminium Systems Ltd has been in operation since January 2011, designing, fabricating, and installing aluminium solar shading and screening products. Over that time, they have worked on a diverse range of projects, including the Manchester Velodrome, Aston Villa FC, the


National Trust, and Kent Fire and Rescue, to name but a few. Aluminium Systems Ltd is now delighted to announce a strategic partnership with P.C. Henderson Ltd, with the launch of Shutter Slide with aluminium louvre panels. This product gives clients the option to have manual or motorised sliding aluminium louvre door panels to provide solar shading or privacy.


01455 848300 www.alusystems.uk Vent-Axia leads the way at the HVR Awards HBD10_Aluminium Systems_PR.indd 1 18/10/2024 09:27


Vent-Axia impressed the judges at this year’s HVR Awards with its groundbreaking innovation. The Sussex-based company scooped an award for its Lo-Carbon Sentinel Econiq Cool-Flow within the ‘Domestic Ventilation Product of the Year’ category at the HVR Awards 2024. Designed to help


housebuilders manage overheating in new homes, the Lo-Carbon Sentinel Econiq Cool-Flow is Vent-Axia’s latest flagship mechanical ventilation with heat recovery (MVHR) system combined with its intelligent Econiq Cool-Flow Module. Vent-Axia received the accolade at a glittering awards ceremony on Thursday 12 September at London’s Chelsea Harbour Hotel.


0344 856 0590 www.vent-axia.com WWW.HBDONLINE.CO.UK HBD10_Vent-Axia_Appointments & News_PR.indd 1 21/10/2024 12:52


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