Weathertex highly recommends the use of a cavity fixing system to provide the best protection for your wall against condensation problems such as mould, timber rot, corrosion and loss of thermal resistance. The Weathertex-endorsed cavity fixing system incorporates cavity battens over a breather membrane, acting as a physical barrier between the studs and the Weathertex cladding, allowing for the controlled escape of vapour from within the building whilst restricting the ingress of liquid moisture.
Providing separation between the vapour permeable membrane on the wall frame and external cladding, cavity battens are an integral component of the cavity fixing system. They should be fixed to each stud using galvanised nails, with a 5-10mm gap between butt joints.
When installing Weathertex weatherboards, cavity battens must be installed onto all studs. When installing Weathertex architectural panels, cavity battens must be installed onto all studs and noggings, ensuring a 20mm gap is left between nogging battens and stud battens to allow for drainage of any potential moisture.