About us

Experts in passive ventilation.

VENT has been New Zealand’s leading specialist in the supply of passive ventilation systems and products for over 5 years and is now here in Australia as VENT Systems. VENT was created as a direct result of the misconception that the ‘Leaky Homes’ disaster that gripped New Zealand was caused solely by external moisture penetration and product failure. The pre-occupation with making homes increasingly more weather tight over the last few decades has prevented our buildings from breathing and has led to houses being designed and built without passive ventilation. Design and build of this nature gives rise to the potential for internal moisture issues.

It is now widely accepted in New Zealand that passive ventilation is a necessity to avoid internal moisture and the associated issues such as toxic moulds, structural decay of building products etc.

VENT Systems products & systems are specifically tailored for Australian buildings and the its extreme climatic conditions. VENT Systems products & systems are tried, tested and designed to avoid compromising the thermal envelopes of our buildings.

Internal Moisture

Research in New Zealand shows that internal moisture & condensation in the roof space is a widespread and growing problem across New Zealand. Whilst passive ventilation is becoming more common place, decades of focus on weather tightness and energy efficiency in New Zealand with little or no focus on passive ventilation are primary reasons for these problems.

The lack of passive ventilation causes condensation to occur. From this, mould is easily formed which is a major contributor to the alarmingly high level of asthma and respiratory diseases experienced in New Zealand. Passive ventilation is a method of allowing continuous airflow into a building above the thermal envelope. This eliminates internal moisture from the roof cavity and prevents condensation and mould from forming.

As a result of changes to the Australian National Construction Code in 2019 it is highly possible and probable that without incorporating passive ventilation into Australian buildings the same issues experienced in New Zealand will occur. The severity of the issue in Australia will vary depending on the various climatic zones.

If You Heat and Insulate and you don’t Ventilate, you will Condensate!

Applying this rule, it is VENTs mission to see the quality of New Zealand buildings improve significantly by simply allowing our buildings to breathe again. It is essential that buildings achieve balanced airflow through both the habitable and non habitable areas of the building before they can start to be considered as a healthy home or a healthy working environment.

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