Experts in passive ventilation.

Blue Building Solutions Australia Ltd t/a VENT Systems is the industry leader in providing products and solutions compliant with National Construction Code requirements.

From our humble beginnings over 14 years ago with VENT New Zealand, we have taken great pride in being New Zealand’s foremost supplier of top-quality passive ventilation systems and products. Our unwavering dedication and expertise have earned us a strong reputation for delivering exceptional product and system solutions to effectively manage moisture in the uninhabitable areas of buildings.

Now, we are excited to expand our unparalleled knowledge and proven product range to Australia as VENT Systems. We fully understand the unique demands presented by Australia’s extreme climatic conditions and have tailored our products and systems to meet these challenges effectively. With new requirements in the National Construction Code 2022 Vol 1: F8D5 / ABCB Housing Provisions Standard 10.8.3, VENT Systems has ensured that compliant product solutions are available for both concrete tiled roofs and Colorbond roofs. Our meticulous attention to detail ensures that our solutions seamlessly integrate into your building’s thermal envelope without compromising its integrity.

When you choose VENT Systems, you can have complete confidence in investing in cutting-edge passive ventilation solutions that offer superior performance, durability, peace of mind, and compliance with National Construction Code requirements. Our passionate team of experts is dedicated to creating healthier living spaces while effectively addressing internal moisture issues, preventing toxic mould, and mitigating structural decay.

Explore our wide range of specially crafted products and systems designed to enhance the ventilation efficiency of your residential or commercial property. Experience the VENT Systems difference and join the ranks of countless satisfied customers who have made us their preferred provider of passive ventilation solutions.

Internal Moisture

Buildings in Australia are facing an increasing vulnerability to problems arising from excessive internal moisture. The Australian National Construction Code underwent amendments in 2019 and 2022, with a specific focus on constructing more energy-efficient buildings that prioritize airtightness and condensation management. While the advantages of creating tighter and more efficient homes are significant, there is also a risk of encountering issues related to excess moisture if the appropriate balance of mechanical and passive ventilation is not incorporated into the construction process. Vent Systems specialises in providing passive ventilation solutions for the non-habitable areas of buildings, such as roof and wall cavities, effectively managing moisture and mitigating associated risks.

To effectively address these risks, it is crucial to comprehend the factors contributing to the creation of moisture within buildings. Several variables influence a building’s susceptibility to problems, including its location, orientation, level of airtightness, occupants’ behaviour, design, the positioning of roof membranes/sarkings, and the utilization of mechanical and passive ventilation systems.

Examining some of the primary sources of internal moisture in more detail:

  • Occupancy behaviour: An average family of four produces approximately 30 litres of moisture daily. Within an airtight building envelope lacking adequate ventilation, this moisture can become trapped, particularly in poorly designed roof cavities.
  • Temperature variations: As temperature drops across the building envelope, condensation occurs when humid air reaches the dew point temperature on surfaces cooled to outdoor levels. This phenomenon is often unavoidable.
  • Moist building products: Materials like timber and concrete slabs contain moisture and require sufficient time to dry out. When the building envelope is sealed, moisture becomes trapped inside.

By incorporating Vent Systems proven, calculated, continuous, and unimpeded product combinations within the roof and wall cavities, moisture can be effectively managed, preventing the accumulation of harmful moulds, structural decay, and excessive heat build-up.