Sub Floor Ventilation


Frequently a building inspector or pest inspector notifies clients when there is a situation with dampness or poor ventilation that is affecting the health of the home. Even though the home may be elevated it needs air circulating underneath it to keep it dry.

Dr Damp approaches a subfloor situation with a 3-pronged approach.

First we remove the damp air from the underfloor; secondly we force fresh air into the space to replace it and, finally, (the most critical step) we create an air circulation pattern that has a drying effect. This is calculated based on air volume so the correct amount of circulation occurs environmentally friendly air pumps.


Large vents have sometimes been installed in homes that we visit but unfortunately this doesn't always solve the problem. In one home, large vents had been placed at intervals of approx 1-metre apart but did not improve the airflow sufficiently and, unfortunately, this is generally the case. This is where the mechanical systems of Dr Damp comes into their own.

By elimination of a damp subfloor, situations such as dry rot and termites, you don’t have the conditions termites need to flourish. When the cost of treating termite infestation is considered, with about $4,000 - $6,000 to treat an average termite infestation (let alone replacing timber and gyprock!), it makes keeping your house ventilated a cost-effective investment. In all our experience in the past 10 years we have not seen termite infestation in any correctly ventilated sub floor area.