This unit of competency supports the attainment of the understanding and skills to produce working drawings for residential buildings and requires the demonstration of two and three-dimensional drawing skills and compliance within the context of relevant legislation, the Building Code of Australia (BCA) and Australian standards.

Nil

ELEMENT

PERFORMANCE CRITERIA

1. Use drawing instruments, equipment and materials to set out drawings.

1.1. Drawing instruments, equipment and materials are used to produce working drawings for residential buildings with scaled line work, simple geometric shapes, lettering, numbering and correct setting out of drawings.

2. Produce drawings at varying scales using architectural conventions for linework, lettering and symbols.

2.1. Linework is applied in a range of different types and media in accordance with standard industry drawing practice for production of building drawings.

2.2. Hand letter text is formed in a variety of formats.

2.3. Different drawing scales are identified and used.

2.4. Graphic symbols are identified and used.

2.5. Orthographic projection in building drafting applications is drawn accurately to scale.

2.6. Notations and dimensions are added to complete drawing.

3. Read and interpret plans and specifications for a single storey dwelling.

3.1. Interrelationships between plans and specifications are identified and interpreted.

3.2. Key information is located and interpreted according to drawings, specifications and application of Australian standards.

4. Draw three dimensional sketches.

4.1. Annotated 3-D sketches of various building components are produced to specifications using parametric (e.g. isometric) or perspective techniques.

5. Produce building permit approval drawings.

5.1. Building permit approval drawings, including detailed specification notes for residential dwellings, are completed to architectural conventions.

Required skills

Required skills for this unit are:

ability to respond to change and contribute to workplace responsibilities, such as current work site environmental and sustainability frameworks or management systems

communication skills to:

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

written skills to:

produce detailed specification notes

provide notations and dimensions on drawings

use language and concepts appropriate to cultural differences

use and interpret non-verbal communication

interpret and apply information from plans and specifications to develop required drawings

numeracy skills to produce drawings for residential buildings

planning and organisational skills to collect, organise and analyse information

technological skills to:

enable production of working drawings

complete documentation and calculations.

Required knowledge

Required knowledge for this unit is:

codes of conduct and ethics

drafting and drawing protocols

processes for the administration and preparation of documentation

processes for the interpretation of reports, working drawings and specifications

relevant federal, state or territory legislation and local government policy and procedures

research methods

structural, design and construction principles of buildings

terminology, definitions and fault identification.

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:

comply with OHS regulations applicable to workplace operations

apply organisational management policies and procedures, including quality assurance requirements where applicable

produce two and three-dimensional drawings for residential building projects, including at least one orthographic, one isometric and one perspective drawing

produce drawings to appropriate body/individual as determined by the project brief.

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 mandatory 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 work 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.

Working drawings for residential buildings include:

area analysis

BCA Class 1 and 10 buildings

computer-generated or paper-based presentations

construction notes

details

elevations

floor plans

general notes

location

neighbouring buildings

plan and specification interpretation

projections

sections

services

single storey dwellings (elementary or conventional)

site plans

two and three-dimensional drawings.

Production of building drawings includes:

banks and landscaping

base structure - timber and masonry

cathedral ceilings

certificate of title to land

chimney construction

complex roof and wall shapes

composite construction (e.g. steel and timber)

conversion of plans and specifications to architectural and building detail

drawing protocols, including:

abbreviations

legends

lettering standards

numbering

paper size

scale

standard units of measurement

symbols

electrical connections plan

excavation cut and fill

flashings and box gutters

general plumbing services plan

glazing, including bay window construction

insulation and sarking

internal and external wall claddings

joinery

land surveyor plans

large span timber beams and connections, including glue laminated beams

levels and contours

retaining walls

roof construction

sewerage connection and easement plan

soil classification and tests

stairs

stormwater connection and easement plan

timber and masonry

upper floor construction

wall construction

window and door schedules.

Application of Australian standards includes:

AS1100 Architectural drawing and supplement

AS1684 Residential timber framing

AS2870 Residential slabs and footings

AS3700 Masonry.

Unit sector

Construction

Nil

This unit contains employability skills.