Meeting Code with HERO®: Effective Washroom Ventilation

When designing the washrooms, the mechanical engineering team, Jewer Bailey Consultants, had to abide by the standards outlined in the 2020 Canadian National Building Code; specifically 9.32. Ventilation, which concerns exhaust ventilation, to deal with obnoxious odors. The supply airflow of the ventilation system must be within 10% of the exhaust airflow.

Both washrooms needed exhaust ventilation to move the stale, musty air out. Since there are 3 rooms in total within this ancillary space, two washrooms and a mechanical room, each space needed exhaust ventilation to keep the same air going out across the three spaces. The designers chose to use a HERO® Fresh Air Appliance.