Elements and Performance Criteria
- Prepare for the work
- Applicable legislative, OHS and organisational requirements relevant to sub-floor preparation are verified and complied with
- Instructions and/or plans are read and interpreted to identify the process required to complete work tasks
- Sub-floors are inspected to ensure that they are dry, smooth, plane, sound and clean in accordance with ASNZS 2455.2 (1995) and AS 1884 (1995) and the extent of preparation is confirmed
- Trial applications of surface materials are made to determine suitability of the primer to the sub-floor, and the appropriateness of the screed compounds to level requirements, and compatibility to the primer
- Tools, equipment and materials are selected and checked prior to use to ensure that they are appropriate for the work, serviceable and in a safe condition
- Material safety data sheets, or equivalent, are read and applied during the work
- Materials and equipment are prepared and positioned for use
- Surfaces are cleaned in accordance with manufacturer recommendation
- From a datum line, define the grading, ramping and set downs
- Establish grid and mark the floor
- Drill for and position pin height
- Clean sub-floor
- Establish existing height and the height of finished ramp to the required threshold
- Establish the width of the ramp appropriate to the height of the finished threshold and in accordance with building codes and client requirements
- Establish existing height and the height of finished floor waste to the required threshold
- Establish height of finished floor at the perimeter
- Establish height of the finished floor at the floor waste/drain
- Repair defects in sub-floor (including expansion joints)
- Treatment of expansion/control joints
- Establish the extent of repair
- Remove unsound material and debris to ensure the mechanics of the control/expansion joint are unimpeded
- Prepare joint to ensure that repair compound does not impede the function of control/expansion joint
- Prime affected area
- Mix and install repair compound
- Inspect completed work to ensure functionality of the control/expansion joint is not impeded
- Recut the expansion/control joint as required
- Apply primers and screed compounds
- Complete housekeeping