Weather Defence rigid air barrier board


Siniat Weather Defence® is a rigid air barrier board used behind facade cladding systems to create a pressure equalised cavity for rain screen and ventilated facade systems. It is the quickest way to achieve a weathertight building, and offers an array of design benefits. 

  • Category
    Construction 4.0, Facade Screens, Pre-cladding
  • Range
  • Brand
  • Warranty
  • Type of use
  • Assembly
    Professional assembly required
Scope of use

Weather Defence is a rigid air barrier that is used behind facade cladding systems to create a pressure equalised cavity.

  • Classified as vapour permeable Class 4 and is recommended for use in Climate Zones 2 to 8. In Climate Zone 1, it is recommended to apply a vapour barrier over the external surface.
  • Plasterboard core
  • Safe to work with. Easy score and snap application 
  • Improves the acoustic and thermal performance of the facade.
  • Water, weather and mould resistant. Can be left exposed on frame for up to 12 months.
  • Improves airtightness of the building
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About the

Siniat is part of the Etex Group, global leaders in lightweight construction materials. With plasterboard manufacturing facilities in Matraville (Sydney, NSW), Altona (Melbourne, Vic) Bundaberg (Qld); compound manufacturing in Altona; metal profile lines in Beenleigh (Brisbane, Qld), over 300 employees and a national distribution network comprising company owned stores, Plastamasta Franchises and independent distributors, Siniat is a major supplier to the lightweight construction industry and a one-stop-shop for a complete wall framing solution. 

A quality range of products and systems designed for performance provide solutions for fire, water, sound and impact resistance, as well as space-giving, acoustic and aesthetic design for all commercial and residential construction projects. 

Siniat’s innovative lightweight construction systems include plasterboard, steel framing systems for walls and ceilings, decorative, acoustic wall & ceiling linings, facade linings and plaster finishing compounds and accessories for internal applications.

At ArchiPro we recognise and acknowledge the existing, original and ancient connection Aboriginal and Torres Strait Islander peoples have to the lands and waterways across the Australian continent. We pay our respects to the elders past and present. We commit to working together to build a prosperous and inclusive Australia.