Ventilation Strategies

Schools have generally been designed for natural ventilation and good natural lighting
This has resulted in narrow schools being provided with large openable windows,
often offering cross ventilation combined with stack ventilation by clerestory
windows. This can provide the required level of fresh air. However, classroom occupants
are typically not able to use the ventilation and have reduced air quality because of problems of operation.

Modern schools tend to be more air tight so it is desirable that occupants have control of ventilation and know how to use it.

Hybrid

Hybrid ventilation lowers the costs of ventilation, reducing ducting and plant. It also lowers ongoing costs for maintenance. Hybrid ventilation also suits using building thermal mass as opposed to a mechanical system where suspended ceilings used may reduce the contact of the air with the thermal mass.

Natural Ventilation Design

School Ventilation Australia initially determines how much ventilation air is needed. The capability to provide each person with adequate fresh air is assessed. This design capability takes in to account requirements for both the warmer and cooler months.

School Ventilation Australia provides these following advantages:

Naturally ventilated buildings are cheaper to construct than mechanically ventilated buildings, often 10% - 15% less. Fan energy is avoided, as air movement is achieved through well-designed opening windows, other ventilation openings, or more sophisticated ventilation stacks, providing lower operating and maintenance costs.

School Ventilation Australia takes care to design natural ventilation systems correctly.