Poor sub-floor air quality can create fungi and mould build up which can lead to structural timber damage. This can also create dank musty odours and mould in your living space. Not only is this extremely unhealthy but it can also provide the perfect environment for termite infestation.
Swansea skylights highly recommend the Edmonds EcoFan ,a low voltage electric fan that removes 4000 Litres / minute of stale damp air from sub-floor spaces. Even if EcoFan is running continuously energy costs are only around $7 per annum.