Sub floor ventilation can remove ground moisture from underneath raised floors, creating a drier and warmer sub floor area.

Many pests and building inspectors recommend sub floor ventilation to reduce termite risk.  These systems are very effective in homes that experience a continuing musty odour or where there is mould on shoes and clothes in wardrobes or on furniture in living spaces.

Your sub floor area may seem insignificant because it does not form part of your living room. However, the fact of the matter is that this space actually has a high impact on the quality of air you breathe in while you are indoors and may affect your health. Poorly ventilated sub floor areas are often damp. This dampness can result in mould, mildew, musty odours, wood rot and pest infestation in your sub floor area and can also contribute to the spread of mould, mildew and allergies above.

Types of Sub Floor Ventilation

Fresh Ventilation supplies and installs a range of efficient and technologically superior sub floor ventilation products.  Our systems utilise the latest in ventilation technology, with Australian made components and German made AC or EC motor centrifugal fans by ebm-papst.

  1. Standalone Ducted Sub Floor Ventilation Systems: Our own exclusive design, based on years of experience and trialling competing products. This system uses ducting and centrifugal fans and can be installed in almost any sub floor area.
  2. DVS Ducted Sub Floor Ventilation Addon: This component is an addon for the DVS EC Premium Connect System and the DVS EC Reclaim Connect System. It cannot be installed on its own.
  3. Standalone Wall-Mounted Sub Floor Ventilation Systems: Fresh Ventilation do not recommend or install wall-mounted sub floor ventilation products unless no other alternative is available. Wall-mounted systems have substantial limitations by design and mostly use inferior components further limiting their usefulness.  When access to a sub floor area is not possible, it may be possible to install wall-mounted fans. In this situation, the limited ventilation provided is better than none.  Ask us how we can help if this applies to you.
  4. DIY Standalone Sub Floor Ventilation Kits: Our own exclusive systems are available as DIY kits in our Online Store. We offer installation assistance and guidance by way of telephone conversations and personalised duct layouts with each kit.

Negative Pressure, Positive Pressure or Balanced Pressure?

All of our systems are available in any of the three pressure configurations – the components don’t change, the way they are installed determines the configuration.

Depending on how your sub floor ventilation fans are installed, they will either blow air into your sub floor area (positive pressure) or suck air out of your sub floor area (negative pressure).  If you have two or more fans installed, it is possible for fans to both blow air in and suck air out of your sub floor area (balanced pressure).

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About Home ventilation systems