Unit of competency Outline
Date retreived
22/07/2026 9:39 PM AWST
22/07/2026 9:39 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Prepare surfaces for waterproofing application
Prepare surfaces for waterproofing application
Unit of competency
National Code
CPCCWP2004A
CPCCWP2004A
State Code
W9621
W9621
TGA Status
Replaced
Replaced
DTWD Status
Transition (Replaced)
Transition (Replaced)
State Implementation and Classification
Approved Date
20/06/2014
Field of Education
040313 - Ceiling, Wall And Floor Fixing
Original Release Date
20/06/2014
Nominal Hours
80
Description
This unit of competency specifies the outcomes required to repair and prepare different material surfaces that form part of the application of waterproofing within the construction process.It includes the inspection, preparation for, and repair and finishing of surfaces prior to the application of the waterproofing process.
Notes
Elements and Performance Criteria
1. Plan and prepare.
- 1.1. Work instructions and operational details are obtained using relevant information, confirmed and applied for planning and preparation purposes.
- 1.2. Safety (OHS) requirements are followed in accordance with safety plans and policies.
- 1.3. Signage and barricade requirements are identified and implemented.
- 1.4. Tools and equipment selected to carry out tasks are consistent with the requirements of the job, checked for serviceability and any faults are rectified or reported prior to commencement.
- 1.5. Material quantity requirements are calculated in accordance with plans and specifications and quality requirements.
- 1.6. Materials appropriate to the work application are identified, obtained, prepared, safely handled and located ready for use.
- 1.7. Environmental requirements are identified for the project in accordance with environmental plans and regulatory obligations and applied.
2. Prepare work area.
- 2.1. Area to be waterproofed is identified from plans and specifications.
- 2.2. Surface to be waterproofed is inspected and tested to determine appropriateness of the installation and any contaminants, moisture or incompatible materials.
- 2.3. Ventilation is provided in accordance with material safety data sheets (MSDS).
- 2.4. Run-off and environmental controls are provided in accordance with regulatory and workplace requirements.
- 2.5. Work area is prepared for the waterproofing processes in accordance with manufacturer specifications.
- 2.6. Surface mounted wet area construction units, fixtures and attachments are detached, removed or arranged for removal from the work area and stored.
- 2.7. Building structure service penetrations, cavities or knockout sections are cleaned of unwanted materials or debris in accordance with good building practice.
- 2.8. Cross cavity flashings and overlapping are inspected for damage and fitness for purpose.
- 2.9. Work surface of the building structure is cleaned free of unwanted materials in accordance with good building practice.
3. Prepare and repair substrate.
- 3.1. Surface or area to be prepared and repaired is assessed for defects to ascertain responsibility for repair, referring areas of concern to supervisor or structural engineer.
- 3.2. Tools are selected to prepare and repair the surface consistent with surface condition and work to be undertaken.
- 3.3. Appropriate tools are used and applied safely to remove loose or protruding material to specification.
- 3.4. Surface is prepared for repair in accordance with manufacturer specifications and workplace procedures.
- 3.5. Method of repairing surface defects is determined in accordance with manufacturer specifications and is consistent with type of material surface, size of defect, compatibility of materials and specified finish.
- 3.6. Repair medium materials are selected, prepared and applied in accordance with manufacturers' and supervisor or structural engineer specifications and consistent with type of material, surface, size of defect, compatibility of materials and specified finish.
- 3.7. Appropriate water stops/hobs and bond breakers/fillets are installed in accordance with manufacturer specifications, drawings and finish levels.
- 3.8. Substrate to be waterproofed is prepared to manufacturer specification.
- 3.9. Substrate is prime coated with waterproofing material in line with manufacturer specification.
- 3.10. Primed surface area is cleaned free of unwanted materials to provide a smooth and uniform surface in accordance with specifications, manufacturer recommendations and good building practices.
- 3.11. Surface is protected until the application of the waterproof membrane in accordance with workplace procedures.
4. Clean up.
- 4.1. Work area is cleared and materials disposed of, reused or recycled in accordance with legislation, regulations and codes of practice and job specification.
- 4.2. Plant, tools and equipment are cleaned, checked, maintained and stored in accordance with manufacturer recommendations and standard work practices.
RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Information includes:
diagrams or sketches
instructions issued by authorised organisational or external personnel
manufacturer specifications and instructions, where specified
MSDS
memos
regulatory and legislative requirements pertaining to preparation of surfaces for the waterproofing application
relevant Australian standards
safe work procedures relating to preparation of surfaces for the waterproofing application
signage
verbal, written and graphical instructions
work bulletins
work schedules, plans and specifications.
Planning and preparation include:
assessment of conditions and hazards
determination of work requirements and safety plans and policies
equipment defect identification
work site inspection.
Safety (OHS) is to be in accordance with state and territory legislation and regulations and project safety plan and may include:
emergency procedures, including extinguishing fires, organisational first aid requirements and evacuation
handling activities that may require the assistance of others or the use of manual or mechanical lifting devices where size, weight or other issues, such as a disability are a factor
hazard control
hazardous materials and substances, including cement and curing agents
organisational first aid
PPE prescribed under legislation, regulations and workplace policies and practices
safe operating procedures, including the conduct of operational risk assessment and treatments associated with:
earth leakage boxes
lighting
power cables, including overhead service trays, cables and conduits
restricted access barriers
surrounding structures
traffic control
trip hazards
work site visitors and the public
working at heights
working in confined spaces
working in proximity to others
use of firefighting equipment
use of tools and equipment
workplace environmental requirements and safety.
Tools and equipment include:
angle grinders
brooms
brushes
buckets
caulking guns
chisels, including cold chisels
cutting blades
dumpy levels, laser and water levels
electric drills and screwdrivers
electric hammers
evacuating equipment
extension leads
floodlights and fans
hammers
high pressure water equipment
measuring tapes and rules
mixers and mixing apparatus
moisture meters
pump
rollers
scissors
spirit levels
straight edges
trowels
vacuum cleaners
wood floats.
Quality requirements include relevant regulations, including:
Australian standards
internal company quality policy and standards
manufacturer specifications
workplace operations and procedures.
Materials include:
acid etching compounds
brick, block and stone
caulking compounds
cleaning and degreasing agents
concrete
fibreglass
masonry
metal (ferrous and non-ferrous)
non-metallic
plaster
primers
proprietary fillers and binders
sand and cement
sheet material
timber.
Environmental requirements include:
clean-up management
dust and noise
sand clean-up management
vibration
waste management.
Surface defects include:
contaminants
cracked or damaged brick or block work
cracks and splits
holes
inadequate substrate fall
inappropriate fixings
incompatible materials
loose fittings, pipework and work stops
missing, cracked or damaged substrate
moisture
out of plumb and level surfaces
rough imperfect surfaces
sandy, loose and flaked surface materials
sheet flutter and soundness
substrate drumming
surface depressions or dents.
Inspection and testing are to determine:
preparatory requirements
performance of the repair
filling
priming work prior to installation of the waterproofing system.
Waterproofing processes may be applied to:
below ground
external
internal.
Waterproofing may be applied as:
a liquid
a sheet
injected material.
Wet areas include:
bathrooms
en suites
food preparation areas
foundation works
kitchens
laundries
lift pits
patios and decks
planter boxes
retaining walls
roofs
showers
slabs
stair wells.
Substrates include:
aerated autoclaved concrete materials:
Hebel
Thermolite
blockwork
brickwork
cement render
ferrous and non-ferrous piping
fibrous cement sheeting
pre-cast concrete
polyvinyl chloride (PVC)
reinforced in situ concrete
timber and timber-based products
wet area plasterboard.
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Information includes:
diagrams or sketches
instructions issued by authorised organisational or external personnel
manufacturer specifications and instructions, where specified
MSDS
memos
regulatory and legislative requirements pertaining to preparation of surfaces for the waterproofing application
relevant Australian standards
safe work procedures relating to preparation of surfaces for the waterproofing application
signage
verbal, written and graphical instructions
work bulletins
work schedules, plans and specifications.
Planning and preparation include:
assessment of conditions and hazards
determination of work requirements and safety plans and policies
equipment defect identification
work site inspection.
Safety (OHS) is to be in accordance with state and territory legislation and regulations and project safety plan and may include:
emergency procedures, including extinguishing fires, organisational first aid requirements and evacuation
handling activities that may require the assistance of others or the use of manual or mechanical lifting devices where size, weight or other issues, such as a disability are a factor
hazard control
hazardous materials and substances, including cement and curing agents
organisational first aid
PPE prescribed under legislation, regulations and workplace policies and practices
safe operating procedures, including the conduct of operational risk assessment and treatments associated with:
earth leakage boxes
lighting
power cables, including overhead service trays, cables and conduits
restricted access barriers
surrounding structures
traffic control
trip hazards
work site visitors and the public
working at heights
working in confined spaces
working in proximity to others
use of firefighting equipment
use of tools and equipment
workplace environmental requirements and safety.
Tools and equipment include:
angle grinders
brooms
brushes
buckets
caulking guns
chisels, including cold chisels
cutting blades
dumpy levels, laser and water levels
electric drills and screwdrivers
electric hammers
evacuating equipment
extension leads
floodlights and fans
hammers
high pressure water equipment
measuring tapes and rules
mixers and mixing apparatus
moisture meters
pump
rollers
scissors
spirit levels
straight edges
trowels
vacuum cleaners
wood floats.
Quality requirements include relevant regulations, including:
Australian standards
internal company quality policy and standards
manufacturer specifications
workplace operations and procedures.
Materials include:
acid etching compounds
brick, block and stone
caulking compounds
cleaning and degreasing agents
concrete
fibreglass
masonry
metal (ferrous and non-ferrous)
non-metallic
plaster
primers
proprietary fillers and binders
sand and cement
sheet material
timber.
Environmental requirements include:
clean-up management
dust and noise
sand clean-up management
vibration
waste management.
Surface defects include:
contaminants
cracked or damaged brick or block work
cracks and splits
holes
inadequate substrate fall
inappropriate fixings
incompatible materials
loose fittings, pipework and work stops
missing, cracked or damaged substrate
moisture
out of plumb and level surfaces
rough imperfect surfaces
sandy, loose and flaked surface materials
sheet flutter and soundness
substrate drumming
surface depressions or dents.
Inspection and testing are to determine:
preparatory requirements
performance of the repair
filling
priming work prior to installation of the waterproofing system.
Waterproofing processes may be applied to:
below ground
external
internal.
Waterproofing may be applied as:
a liquid
a sheet
injected material.
Wet areas include:
bathrooms
en suites
food preparation areas
foundation works
kitchens
laundries
lift pits
patios and decks
planter boxes
retaining walls
roofs
showers
slabs
stair wells.
Substrates include:
aerated autoclaved concrete materials:
Hebel
Thermolite
blockwork
brickwork
cement render
ferrous and non-ferrous piping
fibrous cement sheeting
pre-cast concrete
polyvinyl chloride (PVC)
reinforced in situ concrete
timber and timber-based products
wet area plasterboard.
EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
This unit of competency could be assessed in the workplace or a close simulation of the workplace environment, provided that simulated or project-based assessment techniques fully replicate construction workplace conditions, materials, activities, responsibilities and procedures.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
A person who demonstrates competency in this unit must be able to provide evidence of the ability to:
locate, interpret and apply relevant information, standards and specifications
comply with site safety plan and OHS legislation, regulations and codes of practice applicable to workplace operations
comply with organisational policies and procedures including quality requirements
safely and effectively operate and use tools, plant and equipment
communicate and work effectively and safely with others
as a minimum, prepare for the waterproofing of a bathroom on a suspended concrete slab, with fibrous cement sheeted walls at the corner junction of a masonry wall, ensuring:
correct identification of requirement and preparation for the work
correct selection and use of appropriate processes, tools and equipment
completing all work to specification.
Context of and specific resources for assessment
This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.
Assessment of essential underpinning knowledge will usually be conducted in an off-site context.
Assessment is to comply with relevant regulatory or Australian standards' requirements.
Resource implications for assessment include:
workplace location or simulated workplace
materials relevant to preparing surfaces for the waterproofing application
hand and power tools, plant and equipment appropriate to preparing surfaces for the waterproofing application
realistic activities covering the mandatory task requirements
specifications and work instructions.
Assessment of this unit of competency may be in conjunction with assessment of other units commonly performed at the same time in normal job roles.
Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.
Method of assessment
Assessment methods must:
satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package
include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application
reinforce the integration of employability skills with workplace tasks and job roles
confirm that competency is verified and able to be transferred to other circumstances and environments.
Validity and sufficiency of evidence requires that:
competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace
where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge
all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.
Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.
Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
This unit of competency could be assessed in the workplace or a close simulation of the workplace environment, provided that simulated or project-based assessment techniques fully replicate construction workplace conditions, materials, activities, responsibilities and procedures.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
A person who demonstrates competency in this unit must be able to provide evidence of the ability to:
locate, interpret and apply relevant information, standards and specifications
comply with site safety plan and OHS legislation, regulations and codes of practice applicable to workplace operations
comply with organisational policies and procedures including quality requirements
safely and effectively operate and use tools, plant and equipment
communicate and work effectively and safely with others
as a minimum, prepare for the waterproofing of a bathroom on a suspended concrete slab, with fibrous cement sheeted walls at the corner junction of a masonry wall, ensuring:
correct identification of requirement and preparation for the work
correct selection and use of appropriate processes, tools and equipment
completing all work to specification.
Context of and specific resources for assessment
This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.
Assessment of essential underpinning knowledge will usually be conducted in an off-site context.
Assessment is to comply with relevant regulatory or Australian standards' requirements.
Resource implications for assessment include:
workplace location or simulated workplace
materials relevant to preparing surfaces for the waterproofing application
hand and power tools, plant and equipment appropriate to preparing surfaces for the waterproofing application
realistic activities covering the mandatory task requirements
specifications and work instructions.
Assessment of this unit of competency may be in conjunction with assessment of other units commonly performed at the same time in normal job roles.
Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.
Method of assessment
Assessment methods must:
satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package
include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application
reinforce the integration of employability skills with workplace tasks and job roles
confirm that competency is verified and able to be transferred to other circumstances and environments.
Validity and sufficiency of evidence requires that:
competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace
where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge
all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.
Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.
Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| W1932 | BCGWP2004B | Prepare surfaces for waterproofing application | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| OCP03 | CPCCWP2004 | Prepare surfaces for waterproofing application | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| D383 | CPC20211 | Certificate II in Construction Pathways | Qualification |
| D403 | CPC31411 | Certificate III in Construction Waterproofing | Qualification |