Why don’t we rely on windows for ventilation?
It’s a thing called ‘control’. Just as we have ‘control’ layers for our building envelope, we also need ‘controlled’ mechanical ventilation for our building.
A window provides direct access to outside air, but is the air moving in or out, and what is in the air?
Is a window good for ventilation? Let’s ask the rice cooker. Watch the video below.
To achieve a higher performance outcome, mechanical ventilation must be part of design consideration.