Why subfloor airflow matters
Poor airflow beneath a home can allow moisture to remain around timber, masonry and soil. Improving cross-flow ventilation can reduce damp conditions, musty odours and the risk of ongoing timber deterioration.
Natural and mechanical options
Some buildings can be improved with correctly positioned passive vents. Restricted or irregular spaces may require ducted extraction fans to move stale air to the exterior.
- Assessment of existing openings and obstructions
- Airflow layout matched to the subfloor shape
- Low-voltage or mains-powered fan options where suitable
- Timer-controlled operation designed for efficient use
Part of the wider damp diagnosis
Ventilation is not a universal cure. BRW considers ground moisture, wall symptoms, drainage and building construction so the recommendation addresses the conditions actually present.