Product overview
This high-performance wall underlay offers a superior weather-resistive barrier that shields your building from wind and driving rain while allowing internal moisture to escape. Engineered with a non-porous monolithic TEEE layer, it ensures your structure remains airtight and durable even under the harshest environmental conditions.
Key features
- Roll dimensions: 1500mm width x 50m length
- Coverage: 75m² per roll
- Next-generation non-porous monolithic TEEE technology
- Highly vapour permeable (Class 4)
- 180-day UV resistance for extended exposure during construction
- High water resistance exceeding 10,000mm water column
- Airtight and weathertight weather resistive barrier (WRB)
- Red List Free for sustainable and healthy building projects
- Low flammability index in accordance with AS 1530.2
Common uses
- External wall underlay for timber framed buildings
- External wall underlay for metal framed buildings
- Weather protection behind ventilated and non-ventilated facades
- Secondary drainage layer to prevent moisture ingress into the building envelope

