This is where the air is brought in and extracted through the same façade. A ‘passive’ single-sided strategy is mainly driven by wind pressure, usually through large façade opening devices. As penetration depths are less than 2 ½ times the floor to ceiling height this strategy is more suited to lower occupancy rooms and not higher occupancy rooms such as teaching spaces and seminar rooms.

In contrast a single-sided strategy using a ‘hybrid’ system (part natural, part mechanical) is more suitable for teaching spaces or seminar rooms.  This kind of system will achieve greater penetration depths and higher airflow rates and will also temper incoming air or provide space heating in winter, as well as boosting airflow during the warmer summer months.

Designing natural ventilation systems to be as efficient and effective as possible requires specialised expertise and support at the early concept and design stage.  Get in touch with us today: https://www.passivent.com/enquiries/.