Unitex Base Board® Cavity System

Appraisal number 758
Issued
Last updated 8 Apr 2026
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Description

The Unitex Base Board® Cavity System is an External Insulated Finishing system_blocked(EIFS) wall cladding. The system is designed for use as an external wall cladding system for residential buildings.

The Unitex Base Board® Cavity System consists of factory coated expanded polystyrene (EPS) sheets (Uni-Base Boards®), which are fixed over EPS battens to form a drained cavity. The render coating system consists of a fibreglass mesh reinforced base coat followed by the application of finishing renders. The chosen finishing render can be applied to give a range of different surface textures and is then finished with a 100% acrylic paint system.

The system incorporates a primary and secondary means of weather resistance (first and second line of defence) against water penetration by separating the cladding from the external wall framing with a nominal 20 mm drained cavity.

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder details

Sto Australia Pty Ltd

warehouse
96 Prosperity Way, Dandenong South, Victoria 3175, Australia
phone_enabled +61 3 9768 4900