Natural-ventilation system boosts BREEAM design rating
Gilberts’ Mistrale natural-ventilation solution has played a key role in Filwood Business Park in Bristol achieving BREEAM ‘Outstanding’ at design stage. The system was able to balance a fresh internal environment with minimal ingress of noise from the busy roads around the site.
The £11 million business park won the Eco Green Building of the Year at the Bristol Green Capital awards. Some 1200 m2 of offices and 2300 m2 of workshops for SMEs has been designed by Stride Treglown, ch2m and constructed by Midas Group for Bristol City Council.
All the buildings use Mistral to provide single-sided ventilation in a cellular arrangement. Louvres with insulated dampers and sound attenuation modulate fresh air drawn in at low level, with air exhausted at high level. Ventilation is delivered 24 hours a day, enabling heat built up during the day to be purged at night.
James Horner of Stride Treglown says, ‘The ventilation strategy presented various challenges, including addressing potential noise ingress through any open windows from the busy surrounding roads. Gilberts provided a total solution for us.’