Preparation based on new substrate installations.
Preliminary Checks
Fibre cement sheet – please refer to substrate manufacturer installation instructions.
Vermin proofing track (supplied and installed by the main contractor as per cement sheet manufacturer instructions). The vermin proofing track can be manufactured from uPVC, aluminium or stainless steel and must be punched with 3-5 mm holes or slots complying with NZBC Acceptable Solution E2/AS1, Paragraph 9.1.8.3 to provide ventilation openings of 1000 mm2 per lineal metre.
Other cement sheet flashings may be required as determined by the substrate supplier.
Builder Supplied Flashings
Make sure all builder-supplied flashings are in place. The architectural drawings provide a list of possible flashings.
RCS Flashing Installation
Refer to the flashings as outlined within the Resene Construction Systems Specification
Control/Expansion Joint Setouts
For more information about control joints refer to the technical note on the Resene Construction webpage at the following link https://reseneconstruction.co.nz/control-joints/
The main contractor/substrate installer is responsible for all control joints, which must comply with the substrate supplier’s specifications.
Clean Surface
When the substrate has been left for a period of time, dust and dirt may build up on the surface. This contamination must be removed prior to render application.
Masking
Before applying the render, masking must be applied to all joinery, pipes, roofs, and all areas likely to be marked by the render. Use drop cloths and ground covers to keep the working areas clean.
Colour selection
For more information about light reflectance values refer to the technical note on the Resene Construction webpage at the following link https://reseneconstruction.co.nz/light-reflectance-values/
Rebated fibre cement sheet
When coating rebated fibre cement sheet joints, rebated edges must occur on all opposing sheet joints.
