How You Can Identify A Good Sub Floor Ventilation System

Copyright (c) 2016 Matt Reardon

Understandably, not every homeowner has technical knowledge of most features found within the house, including the sub floor ventilation system. However, there are simple signs that you can check out for, which will easily show you whether the ventilation system installed in your sub floor is good or bad:

- A good system would not only be cost-effective, but also energy efficient: Despite the fact that quality installations normally cost more than poor quality ones, you really shouldn't pay exorbitant amounts of money - something that's likely to happen if you don't hire the services of a good contractor. If you contract a reputable firm, you will always get a clear outline of the cost of installation without any hidden charges. Moreover, the firm will install a high quality system that is sure to be energy efficient.

- If the system isn't properly installed or it doesn't have good insulation, you might end up with obtrusive and irritating noises. Actually, the presence of noises would be sign that the setup might actually have a problem. Therefore, you must get the assurance from you contractor that the design of the ventilation system eliminates such obtrusive noises.

- You wouldn't want a system that requires constant maintenance every now and then. Only a high quality setup would run smoothly for long periods of time without requiring maintenance. It would also have a long lifespan, if properly used and maintained.

- Aesthetics is also an important component, despite the fact that much of your ventilation system would remain out of sight. It's important that the parts which would be visible are well-designed to complement the look of your house. Even the out-of-sight areas should have a good appearance, which can give an indication of the quality of design.

- Does it comply with Australian Standards? If your system doesn't comply with existing building code requirements, you would be putting your life and your property at risk. Such standards have been set out in order to maintain the integrity of buildings, as well as the health and safety of occupants. Specifically, the Australian Building Codes Board (ABCB) clearly states that sub-floor type ventilation must be provided at a minimum rate of 7,300 mm2 per lineal metre.

Actually, the ABCB provides various other conditions that must be met in order to have acceptable ventilation levels within the sub floor area. Some of these aspects would be featured in the design of the building; whereas, certain aspects must be factored in when installing the ventilation system. For instance, the substructure walling should have openings which allow for cross-ventilation and the space within shouldn't have any dead air spaces. Also, in order to allow for proper ventilation and installation of certain features like termite barriers, the area should have a minimum height of 150 mm (distance from the underside of the lowest subfloor frame to the ground surface).

By understanding such requirements and the features of a good ventilation system, you would notice if anything seems to go wrong or if you need to change the whole setup and get an effective unit.


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Mould Buster provides a cost effective sub floor ventilation system that will help prevent mould and rising damp. This system can be used as a stand-alone solution or even to complement the Heat Recovery Ventilation system. Contact Mould Buster today for this and other home ventilation solutions, please view our webpage for more details at http://mouldbuster.com.au/sub-floor-ventilation/ .