Preliminary Checks
Confirm that the substrate is remaining in place. If existing weather boards are unstable, i.e., borer-infested or weather damaged beyond repair, and unable to support additional cladding, they must be removed. An engineer’s report will determine the stability of the substrate.
If the weatherboards remain in place, check that all exposed surfaces of the substrate are straight, plumb, and undamaged. If any loose substrate material is identified, it must be removed and replaced.
Fixing requirements will need to be adjusted to ensure accurate fixing of the cladding to the substrate occurs. Screw fixing is mandatory to avoid any internal damage to existing interior linings.
Existing landscaping must be protected and/or removed in consultation with the project owner to allow accurate cladding installation in accordance with Rockcote technical details.
Check with your local BCA, as consent and inspections may be required.
Wall Alignment
Using a straight edge, check that the joints are smooth and that the wall is flat and true. The RCS system installation is not designed to straighten deviations exceeding the specified RCS Render System thickness.
Existing Services / Structure
General
If they remain in place, all services must be back-flashed against the building wrap or against the existing weatherboards.
Plumbing
Plumbing services may need to be extended beyond the ‘new’ outside cladding line.
Electrical
Electrical services may need to be extended beyond the ‘new’ outside cladding line, and wiring must be wrapped with conduit.
Roofing
Face fixed fascia, roof and apron flashings may need to be extended/replaced to allow for extra cladding thickness. All external spouting must be removed prior to cladding installation.
