Elements and Performance Criteria

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 waterproofing internal wet areas
relevant Australian standards
safe work procedures relating to waterproofing internal wet areas
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
electric drills and screwdrivers
fans
floor scrapers
hammers
heat welders
hot air welders
lights
measuring tapes and rules
moisture meters
nylon rollers
pressure rollers
fusion rollers
scissors
seam probes
solvent applicators
spirit levels
straight edges
vacuum cleaners.
Quality requirements include relevant regulations, including:
Australian standards
internal company quality policy and standards
manufacturer specifications
workplace operations and procedures.
Materials for internal application include:
adhesives
drainage cell
liquid applied, including:
acrylic
cementitious-based
injection
polyurethane
protection board
sheet, including:
bentonite composites
butanol
ethylene cop bitumen (ECB)
ethylene propylene diene monomer rubber (EPDM)
polyvinyl chloride (PVC)
substrate primer.
Environmental requirements include:
clean-up management
dust and noise
vibration
waste management.
Identification of the waterproofing system includes:
preparation of the substrate and waterproofing material
application to an internal wet area.
process:
testing
drainage
protection of the membrane system.
Waterproofing systems include:
cement-based waterproofing systems.
hot mix bituminous felt material membranes
liquid sealants
sealant devices
sheet and sprayed material membranes.
Considerations in water exclusion include:
capillary action
causes of water penetration, including:
leakage through wall and floor finishes
penetration at joints and junctions
movement from shrinkage
accumulated drainage
failure of or damage to waterproofing system corners and terminations
curing times of compounds and their applications
damp proof courses and flashings
direction of fall of substrate or decorative finish
hydrostatic pressure
impact of environmental conditions
joining
perimeter treatment, including:
pressure seals and over flashing
thermal shrinkage (expansion and contraction)
shelf life of waterproofing products
surface applications and protection requirements
use of bond breakers
use of sealants
waste allowances.
Structural considerations include:
design principles
drainage requirements
environmental factors, including:
water run-off and impact on adjoining property
allowing water flow
slope, fall and grade of surfaces
hydrostatic pressures
movement
substrate type and condition
waterproofing protection.
Internal wet area applications include:
bathrooms
en suites
laundries
showers
other wet process areas.
Wet area fixtures include:
bidets
pre-cast baths
shower bases
sink units
trough units
urinals
vanity units
water closets.
Substrates include:
aerated autoclaved concrete materials:
Hebel
Thermolite
blockwork
brickwork
cement render
ferrous and non-ferrous piping
fibrous cement sheeting
pre-cast concrete
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:
waterproof a bathroom incorporating:
lap up a wall
appropriate penetrations
wastes and hobs
install and detail a hobless frame shower enclosure and a bath that abuts a masonry connection wall, ensuring:
correct identification of requirement and installation of the waterproofing
correct selection and use of appropriate processes, tools and equipment
completing all work to specification
correct termination and overflashing.
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 waterproofing internal wet areas
hand and power tools, plant and equipment appropriate to waterproofing internal wet areas
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.