Subfloor and Internal Ventilation Issues? Musty Odours?

A lack of subfloor ventilation and/or internal ventilation can cause moisture build-up in the home, which can result in musty odours, mould growth and rising damp. It is very often the case that the moisture problem is being caused by a lack of ventilation to some area of the property. A poorly ventilated subfloor is often the root cause of these issues.

Subfloor Ventilation and Internal Ventilation will fix Rising Damp and Musty Odours.

Increasing natural ventilation will sometimes enable a building to breathe enough to reverse an excessively-moist atmosphere. In the subfloor, cross flow ventilation is vital and modern building regulations have strict requirements as to the number of passive vents required per lineal metre of wall space. Older properties, however, tend to never have enough passive vents and often even those that are installed are inadequate due to the low level of many older houses.

Forced Air Ventilation in the Subfloor or Ceiling Cavity.

If moisture and damp is an ongoing problem, the best method of permanently relieving the property of a build up of moisture in either the subfloor or roof cavity is to add a mechanical (forced air) ventilation system. Forced air ventilation systems are controlled by a 24 hour timer or a hygrometer (humidity thermostat) automating the process of ongoing ventilation. Because they are powered and switched, these systems put the home or building owner in complete control of their indoor environment and they are therefore able to manipulate the indoor ventilation to permanently keep the property moisture-free. Drying the property prior to installing a forced air ventilation system is sometimes required.

Subfloor Ventilation to Prevent Rising Damp Problems.

If a lack of subfloor ventilation is causing an ongoing rising damp problem, the best method of resolving the build up of moisture in the property is to use a subfloor forced air ventilation system. These are typically switched via a 24 hour timer or a hygrometer (humidity thermostat) and are operated via 240V. Again, it must be stressed that drying the property before installing a forced air ventilation system is often recommended.