In this episode Robyn sets out to answer the question of what is really happening in built homes with subfloors, are we getting it right? Do passive vents works? How do we successfully balance indoor air quality, energy efficiency, bushfire risk and design aesthetics?
- Fresh Ventilation's team has been crawling through subfloors for 16 years and has rarely seen one that's clean and dry.
- The NCC sets minimum requirements for subfloor vents, but passive vents struggle in many common situations — bushfire-rated areas with restricted mesh openings, narrow blocks hemmed in by fencing, low-lying positions in the landscape, and homes where renovations have blocked existing airflow paths.
- When passive vents aren't doing the job, mechanical subfloor ventilation is the answer — extracting damp air and drawing fresh air in, giving you control over where moisture goes.
- Renovations, new concrete slabs, and pools built uphill from your home can permanently change how water moves through your site — and your subfloor pays the price.
- If you've got mould in your home, cupping timber floors, or a musty smell, the subfloor is the first place to look. Eco Mould Solutions works alongside Fresh Ventilation where remediation is needed as well as ventilation.
- Cameron and Claire Grant are both certified Passive House tradespeople — bringing a high performance building lens to everyday ventilation problems.
📍 Find Fresh Ventilation at website | Instagram | phone/email
I'm a Principal Planner and Accredited Energy Assessor. If you’d like to work with me directly in pre-design for your project in Greater Sydney and Surrounds, or use energy rating information to help make project decisions,
I’d love to help bring your sustainable home vision to life!
