Stacks of Cavi-Break insulation panels on a construction site with scaffolding and a worker's hand holding one panel.Hand holding a blue Cavi-Break strip from a packaging box describing features of the smarter building solution for steel and timber framing.

Built better, from the inside out.

Thermal Break and Cavity Ventilation products that go further than the building code requires.
Where to buy

The right product, chosen with forethought.

ATI develops and supplies thermal break and cavity ventilation products purpose-built for the Australian construction market.

Every product exists because there was a real gap that nothing else was properly filling.
50
Minimum 50 year lifespan*
24%
Higher Total Wall R-Value
1k+
Homes supplied
$2.5k
Potential savings per home

Designed for better practice.

Blue Bunnings Trade SilverWrap packaging stacked and secured with blue strapping.

Independently tested and documented to support NCC compliance without the guesswork.

Stacked blocks of Cavi-Strips in yellow, pink, white, and blue showing different thicknesses.

Available in multiple thicknesses to suit your current wall design or step up your Total Wall R-Value for stronger 7-Star outcomes.

Construction worker in a grey shirt marking a light blue wall near scaffolding on a building site.

ATI products are built to perform across the life of the building, not just at handover. Dimensional stability under load, tested R-values and compatibility with major cladding manufacturer guidance are built in from the start. That means fewer callbacks and greater confidence in the long-term outcome.

ATI product range

Each product in our range is independently tested, clearly documented and available through our stockist network.

Cavi-Break®

Cavi-Break applies vertically over framing members, providing a thermal break on steel frames and a defined cavity for condensation management on timber. Pairs with Cavi-Vent to complete the wall system.

Cavi-Break X10
Cavi-Break X12
Cavi-Break X20
Cavi-Break X35
Hand holding a blue Cavi-Break strip from a packaging box describing features of the smarter building solution for steel and timber framing.
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Cavi-Vent®

Cavi-Vent installs horizontally to create a drained and ventilated cavity behind cladding while maintaining continuous thermal separation. Pairs with Cavi-Break to complete the wall system.

Cavi-Vent X10
Cavi-Vent X12
Cavi-Vent X20
Cavi-Vent X35
Box of ATI Australian Thermal Industries Cavi-Vent X20 Strips at a construction site with scaffolding.
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Joist-Break Ultra

Joist-Break Ultra reduces thermal bridging at the joist interface for homes on posts and stumps. Better comfort underfoot, lower energy bills, and virtually no compression over 50 years.

Packaged Joist-Break Ultra 20 thermal break strip by Australian Thermal Industries at construction site.
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Non-Combustible Thermal Break Strip

For apartments, commercial and multi-storey applications where non-combustible materials are required under the NCC. Tested and classified under AS 1530.1, suitable for all BAL ratings.

Wall under construction with blue weatherproof barrier and white tape strips applied vertically.
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First-hand success stories

Philip Usher Constructions

Learn why Philip Usher Constructions chose ATI's Cavi-Break X10 for their Aged Care developments – and why consistent product quality, deep technical knowledge, and seamless delivery made it an easy decision to keep coming back.

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Bentley Development Management

Learn why Bentley Development Management chose Cavi-Break and Cavi-Vent for a 30-townhouse steel frame project in North West Brisbane – and why their cladding installers actively requested it after seeing what happens when wall cavities can't drain or ventilate.

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Better practice.
Proven by the code.

A pattern made from the ATI Logo