b'InstallationCAVITY WALL SYSTEMSPreparationMinimum requirements for fasteners must be followed when installing the Weathertex Cavity System. See the Fasteners Section when selecting appropriate fasteners.Vapour permeable membrane must be installed between the timber frame and battens; see section on Wall Sarking Requirements. The membrane can be secured by the timber battens as they are installed along a wall.Care should be taken when installing bulk insulation to ensure the stud cavity is not over-filled. Over filling the stud cavity with bulk insulation will impinge in the cavity created by the cavity battens and hence reduce its effectiveness, and may void warranty.Cavity BattensCavity battens provide the separation between the vapour permeable membrane on the wall frame and the cladding. Weathertex provides and recommends the use of Weathertex Cavity Battens which are 1200 x 45 x 9.5mm. Check your local regulations and/or certifiers for recommended batten thickness. If using battens other than Weathertex supplied cavity battens, fastener lengths should be increased by the batten depth.When installing Weathertex Weatherboards cavity battens must be installed onto all studs. When installing Architectural Panels, cavity battens must be installed onto all studs and noggings. Cavity battens must be fastened to framework at a minimum of 600mm centres. Butt-join the stud battens leaving a 5mm gap while also leaving 20mm gaps between nogging battens to allow for drainage of any moisture. Cavity CloserTo protect against vermin and other material entering the cavity, the base of the cavity must be sealed using the Weathertex Large or Small Cavity Closer. Designed not to interrupt airflow in the cavity, a cavity closer must be installed at the base of the wall, above window heads, inter-storey flashings and at other points where a cavity is created by the design. The bottom of the battens is inserted into the cavity closer.Use 20mm Large Cavity Closer for: Classic and Primelok Weatherboards Use 10mm Small Cavity Closer for Selflok Weatherboards, WeathergrooveFix the cavity closer to the base plate at 300mm centres along the closer with 30 x 2.8mm flat head galvanised nails. Butt-join the cavity closers and ensure they are fixed in a straight, level line. It is important that the openings in the cavity closer are kept clear and unobstructed to allow free drainage and ventilation of the cavity. To provide the best protection for your wall against moisture and mould related problems Weathertex highly recommends the use of a cavity fixing system. Fixing over the Weathertex cavity system provides the best defence for your internal lining, frame, insulation and cladding against sick home syndrome. A cavity system creates a space within the wall that allows airflow to remove any moisture that accumulates in this space either from wind driven rain or condensation. Step 1Installing your Weathertex on the Cavity SystemInstall vapour permeable membraneTimber Frame Step 1Install vapour Step 1Step 3permeable membraneTimber Frame Install 9.5 Weathertex9.5mm Cavity BattenStep 1Install vapour Install vapour permeable membraneCavity Battens on Studpermeable membraneTimber Frame Timber Frame Step 3Install 9.5 Weathertex Step 3Step 3Cavity Battens on StudInstall 9.5 Weathertex 12mm Polystyrene Install 9.5 Weathertex Cavity Battens on StudCavity Battens on Stud SelflokThermal Break Note 1Battens on Noggins for9.5mm Cavity ArchitecturalPanelsNote 1Note 1 Batten SelflokBattens on Noggins for Battens on Noggins for ArchitecturalPanelsNote 1ArchitecturalPanelsBattens on Noggins for ArchitecturalPanelsSmall Cavity CloserStep 2Step 2InstallCavity Closer* See Details 9.5mm Cavity BattenInstallCavity Closer* See DetailsStep 2InstallCavity CloserStep 2* See DetailsInstallCavity CloserStep 4Install Weathertex as perPrimelok* See DetailsStandard InstructionsStep 4 9.5mm Cavity Install Weathertex as perBatten PrimelokStandard InstructionsStep 4Install Weathertex as per Step 4Standard InstructionsInstall Weathertex as per Ensure required groundStandard Instructionsclearance is maintained Large Cavity Closer(refer to general requirements )259.5mm Cavity Batten9.5mm Cavity Batten Ensure required ground clearance is maintained Selflok(refer to general requirements )Ensure required groundPrimelok clearance is maintained(refer to general requirements )Ensure required ground clearance is maintained 9.5mm Cavity Batten Small Cavity Closer 9.5mm Cavity Batten (refer to general requirements ) Large Cavity Closer9.5mm Cavity Batten9.5mm Cavity Batten 9.5mm Cavity Batten9.5mm Cavity Batten Selflok PrimelokSelflok9.5mm Cavity Batten9.5mm Cavity Batten Selflok Primelok SelflokPrimelok Small Cavity Closer Large Cavity CloserPrimelok 9.5mm Cavity BattenSmall Cavity Closer 9.5mm Cavity Batten Large Cavity CloserSelflok PrimelokSmall Cavity Closer Large Cavity Closer9.5mm Cavity Batten9.5mm Cavity Batten Selflok Primelok9.5mm Cavity Batten9.5mm Cavity Batten Selflok Primelok'