Site location for work application will be residential and commercial, and may be a new work site or an existing structure being renovated, extended, restored or maintained.

Nil

ELEMENT

PERFORMANCE CRITERIA

1. Prepare for planning.

1.1. Nature and scope of planning task are identified and confirmed.

1.2. Safety (OHS) requirements associated with planning, sizing and documenting the layout of roof drainage systems, and workplace environmental requirements, are adhered to throughout the work.

1.3. Work is organised and sequenced in conjunction with others involved in or affected by the work.

1.4. Tools and equipment required for planning, sizing and documenting the layout of roof drainage systems, including personal protective equipment, are selected and checked for serviceability.

1.5. Work area in which planning process is to be conducted is prepared.

2. Identify system requirements.

2.1. Information and specifications for the required work are obtained and confirmed, if necessary by site inspection.

2.2. Regulations and Australian standards relevant to the work are consulted and applied to all aspects of the work, including statutory and regulatory authority requirements.

2.3. Roof catchment areas and design flows are determined from rainfall data and relevant Australian standards.

2.4. Quantity and size of gutters, sumps, rain heads and downpipes are determined in accordance with relevant Australian standards, plans and specifications.

3. Plan system layout.

3.1. Layout of roof drainage system is planned in accordance with development plans, specifications, relevant Australian standards and workplace procedures.

3.2. Required materials and components of roof drainage system are specified and optimised in accordance with relevant Australian standards from the proposed design.

3.3. Plans are recorded in accordance with regulatory authorities' and workplace requirements.

3.4. Sustainability principles and concepts are applied to work preparation and application.

4. Restore work area.

4.1. Work area is restored in accordance with workplace procedures.

4.2. Tools and equipment used in the process are refurbished and left in accordance with workplace procedures.

4.3. Documentation is completed in accordance with workplace requirements.

Required skills

Required skills for this unit are:

communication skills to:

access information

enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand

follow instructions

identify requirements

organise and sequence tasks with others

read and interpret:

documentation from a variety of sources

regulations, relevant Australian standards, plans, specifications and drawings

use language and concepts appropriate to cultural differences

use and interpret non-verbal communication, such as hand signals

written skills to:

complete workplace documentation

record plans

identifying and accurately reporting to appropriate personnel any faults in tools, equipment or materials

numeracy skills to apply measurements and calculations

organisational skills, including the ability to plan and set out work

teamwork skills to work with others to action tasks and relate to people from a range of cultural and ethnic backgrounds and with varying physical and mental abilities

technological skills to:

access and understand site-specific instructions in a variety of media

use mobile communication technology.

Required knowledge

Required knowledge for this unit is:

accessing relevant information sources for the work activity and the processes for the calculation of catchment areas and design flows

capacity of fabrication machinery involved in the production of roof draining components

capillary action, thermal expansion and fabrication techniques to prevent leaking

characteristics of various metals and finishes

computers and computer-aided design (CAD) software

corrosion prevention treatment requirements of cut sheets

design concepts and performance measures for various roof draining components for all types of roofs

electrolysis and problems associated with the use of dissimilar metals

implications of climate variations for the design of roof draining components

job safety analysis (JSA) and safe work method statements (SWMS)

levelling and alignment processes

process of planning, sizing and documenting the layout of roof drainage systems

relevant statutory and authority requirements related to planning, sizing and documenting the layout of roof drainage systems

SI system of measurements

Australian standards applicable to roof drainage

workplace and equipment safety requirements.

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 providing that simulated or project-based assessment techniques fully replicate plumbing and services 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:

locating, interpreting and applying relevant information, Australian standards and specifications to the planning, sizing and layout of roof drainage systems

applying safety requirements throughout the work sequence, including electrical requirements and the use of personal protective clothing and equipment

as a minimum, the ability to design, size and document the layout of a roof drainage system for three varied roof types, including at least one type incorporating eaves gutter and one type for a commercial building incorporating box gutters, sumps or rain heads, ensuring:

application of sustainability principles and concepts

correct identification of details of the plan

correct selection and use of appropriate processes, tools and equipment

completion of all work to specification

compliance with regulations, relevant Australian standards and organisational quality procedures and processes

communicating and working effectively and safely with others.

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:

an induction procedure and requirement

realistic tasks or simulated tasks covering the minimum task requirements

relevant specifications and work instructions

tools and equipment appropriate to applying safe work practices

support materials appropriate to activity

workplace instructions relating to safe working practices and addressing hazards and emergencies

material safety data sheets

research resources, including industry related systems information.

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 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.

Safety (OHS) is to be in accordance with commonwealth, state and territory legislation and regulations and may include:

handling of materials

hazard control

personal protective clothing and equipment prescribed under legislation, regulations and workplace policies and practices

safe operating procedures, including recognising and preventing hazards associated with:

electricity

hazardous materials and substances

other machines

surrounding structure and facilities

trip hazards

underground services

use of tools and equipment

work site visitors and the public

working at heights

working in confined spaces

working in proximity to others

use of firefighting equipment

use of first aid equipment

workplace environment and safety.

Environmental requirements cover water quality management and may include:

clean-up protection

stormwater protection

waste management.

Tools and equipment may include:

computers running appropriate CAD software

drawing instruments

ladders

laser measuring devices

measuring equipment.

Information may include:

charts and hand drawings

diagrams or sketches

instructions issued by authorised organisational or external personnel

job drawings

manufacturer specifications and instructions

material safety data sheets (MSDS)

memos

organisation work specifications and requirements

regulatory and legislative requirements, particularly those pertaining to:

Building Code of Australia

OHS and environmental requirements

plumbing regulations

relevant Australian standards, including:

AS/NZS3500 National plumbing and drainage set: Part 3.2 Stormwater drainage

SAA and SNZ HB 114:1998 Guidelines for design of eaves and box gutters

safe work procedures relating to planning, sizing and documenting the layout of roof drainage systems

signage

verbal, written and graphical instructions

work bulletins

work schedules, plans and specifications.

Statutory and regulatory authorities include:

commonwealth, state and local authorities administering applicable Acts, regulations and codes of practice.

Materials for design of roof drainage systems may include:

drafting and drawing materials

plans and specifications

manufacturer catalogues and specifications.

Components of roof drainage system may include:

downpipes

gutters

rain heads

sumps.

Sustainability principles and concepts:

cover the current and future social, economic and environmental use of resources

may include:

efficient design principles are used throughout to minimal environmental impact

efficient use of material are incorporated in the design including recycling of material

rainwater harvesting concepts are applied

efficient energy use

disposal of waste material to ensure minimal environmental impact.

Unit sector

Plumbing and services

Nil

This unit contains employability skills.