The unit involves interpreting plans and designs to prepare a limited range of roof truss drawings and production documents using computers in a timber products, production or design setting

The skills and knowledge required for competent workplace performance are to be used within the scope of the person's job and authority

ELEMENT

PERFORMANCE CRITERIA

1. Prepare to interpret plans or designs

1.1. Applicable Occupational Health and Safety (OHS), environmental, legislative and organisational requirements relevant to interpreting a range of plans and designs to prepare timber roof truss drawings and production documents using computers are identified and followed

1.2. Information about plans or designs, identified standards, design factors and specifications is gathered

1.3. Stakeholders are identified and consulted where clarification is needed

1.4. Drawings and documentation are maintained to identified standards

2. Create roof truss layouts

2.1. Computersoftware is checked for currency

2.2. Design factors and data are input to the software

2.3. Pitching lines and load bearing points are identified

2.4. Roof shapes are input and roof truss layout is created

2.5. Design requirements outside software limitations are referred to appropriate personnel for resolution

3. Review roof truss layouts

3.1. Roof trusses are designed and proved against identified standards

3.2. Roof truss designs are reviewed and amended to ensure efficiency is met with respect to available materials and production requirements, while maintaining identified standards

3.3. Design variations are referred to appropriate stakeholders following organisational referral procedures, where design varies from identified standards

4. Create outputs

4.1. Drawings and documentation are prepared

4.2. Drawings and documentation are communicated and stored, in line with identified standards

This describes the essential skills and knowledge and their level required for this unit.

Required skills

Technical skills sufficient to accurately prepare roof truss drawings and production documents to identified standards using custom software

Communication skills sufficient to interact with stakeholders

Literacy skills sufficient to locate, interpret and apply relevant information and to accurately record outputs

Numeracy skills sufficient to select and use appropriate mathematical techniques

Problem solving skills sufficient to identify problems and appropriately initiate solutions or referral processes

Required knowledge

Applicable Commonwealth, State or Territory legislation, regulations, standards, codes of practice and established safe practices relevant to the full range of processes for the interpretation of plans and designs to prepare timber roof truss drawings and production documents using computers

Organisational and site standards, requirements, policies and procedures relevant to interpreting plans and designs to prepare a limited range of timber roof truss drawings and production documents using computers

Environmental protection requirements, including the safe disposal of waste material

Limits of ability and authority with respect to non-conforming design

Common industry standard sizes, profiles and spacing dimensions

Established communication channels and protocols

Problem identification and resolution strategies and common fault finding techniques

Types of tools and equipment relevant to preparing timber roof truss drawings and procedures for their safe use, operation and maintenance

Appropriate mathematical procedures for estimating and measuring including calculating time to complete tasks

Procedures for recording and reporting workplace information

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

A person who demonstrates competency in this unit must be able to provide evidence that they can use computer software to prepare timber roof truss drawings and documents from plans and designs provided

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements of this unit and include demonstration of:

following applicable Commonwealth, State or Territory legislative and regulatory requirements and codes of practice relevant to interpreting plans and designs to prepare timber roof truss drawings and production documents using computers

following organisational policies and procedures relevant to interpreting plans and designs to prepare a limited range of timber roof truss drawings and production documents using computers

preparation of roof truss drawings and production documents suitable for manufacture of roof trusses

Context of and specific resources for assessment

Competency is to be assessed in the workplace or realistically simulated workplace

Assessment is to occur under standard and authorised work practices, safety requirements and environmental constraints

Assessment of required knowledge, other than confirmatory questions, will usually be conducted in an off-site context

Assessment is to comply with relevant regulatory or Australian Standards requirements

The following resources should be made available:

workplace location or simulated workplace

materials and equipment relevant to undertaking work applicable to this unit

specifications and work instructions

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of the FPI11 Training Package

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of required knowledge

Assessment must be by direct observation of tasks, with questioning on required knowledge and it must also reinforce the integration of employability skills

Assessment methods must confirm the ability to access and correctly interpret and apply the required knowledge

Assessment may be applied under project-related conditions (real or simulated) and require evidence of process

Assessment must confirm a reasonable inference that competency is able not only to be satisfied under the particular circumstance, but is able to be transferred to other circumstances

Assessment may be in conjunction with assessment of other units of competency

The assessment environment should not disadvantage the candidate

Assessment practices should take into account any relevant language or cultural issues related to Aboriginality, gender or language backgrounds other than English

Where the participant has a disability, reasonable adjustment may be applied during assessment

Language and literacy demands of the assessment task should not be higher than those of the work role

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.

OHSrequirements:

are to be in line with applicable Commonwealth, State or Territory legislation and regulations, and organisational safety policies and procedures, and may include:

personal protective equipment and clothing

safety equipment

first aid equipment

fire fighting equipment

hazard and risk control

fatigue management

elimination of hazardous materials and substances

management of hazardous materials and substances

ergonomic office layouts and practice

manual handling including shifting, lifting and carrying

Legislative requirements:

are to be in line with applicable Commonwealth, State or Territory legislation, regulations, certification requirements and codes of practice and may include:

award and enterprise agreements

industrial relations

Australian Standards

Building Code of Australia

confidentiality and privacy

OHS

the environment

equal opportunity

anti-discrimination

relevant industry codes of practice

duty of care

Organisational requirements may include:

legal

organisational and site guidelines

policies and procedures relating to own role and responsibility

quality assurance

procedural manuals

quality and continuous improvement processes and standards

OHS, emergency and evacuation procedures

ethical standards

recording and reporting requirements

equipment use and maintenance and storage requirements

environmental management requirements (waste disposal, recycling and re-use guidelines)

procedures relating to economical design with respect to production and materials

Roof trusses must include:

"A" type truss

truncated standard truss

girder truss

truncated girder

jack truss

rafter truss

gable truss

saddle truss

Roof trusses may include:

raking truss

parallel chord truss

vaulted truss

truncated saddle truss

scissor truss

Identified standards may include:

Building Code of Australia

Australian Standards

organisational quality standards

Design factors may include:

roof material loads

wind zone and applied loads

commercial or residential output

additional roof loading

post disaster structures

roof shape

roof lines

Stakeholders may include:

clients

builders

manager

supervisor

production staff

engineers

architects and designers

building certifiers

software providers

Drawings and documentation may include:

drawing views

drawing notes

records of conversation

records of amendments

functional and pictorial images

design records

component cutting details

Computer software must include:

software capable of developing a design outcome to an identified standard

Roof shapes may include

hipped

gabled

bowstring

mansard

skillion

dual pitch

bell

Available materials may include:

timber dimensions, grades and treatments

nail plate and other hardware dimensions

Production requirements may include:

plant availability

labour availability

production schedules

Timber Manufactured Products and Timber Merchandising

This unit contains employability skills