FWPTMM3204
Interpret designs to prepare timber roof truss drawings and documents using computers


Application

This unit of competency describes the outcomes required to interpret designs and plans to produce roof truss drawings and production documents using computers in a timber production or design setting.

The unit applies to Production Manager, Designer, Timber Manufactured Products Technician.

No licensing, legislative, regulatory, or certification requirements apply to this unit at the time of publication.


Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions.

1. Interpret plans and designs

1.1 Gather information about designs and plans, design factors and specifications.

1.2 Access and interpret industry and organisational codes and standards to ensure production of compliant drawings and production documents.

1.3 Identify stakeholders and consult where clarification is needed.

2. Create roof truss layouts

2.1 Design roof trusses to ensure compliance with identified standards.

2.2 Check computer software for currency.

2.3 Input design factors and data to software.

2.4 Identify pitching lines and load bearing points.

2.5 Input roof shapes and create roof truss layout.

2.6 Refer design requirements outside software limitations to appropriate personnel for resolution.

3. Review roof truss layouts

3.1 Identify available materials and other production efficiencies and amend designs.

3.2 Review designs to ensure identified standards are maintained.

3.3 Follow organisational procedures to refer design variations to relevant stakeholders where design varies from identified standards.

4. Create outputs

4.1 Prepare drawings and documentation in line with identified standards.

4.2 Store drawings and documentation and communicate to relevant stakeholders.

Evidence of Performance

A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit. If a specific volume or frequency is not stated below, then evidence must be provided that the following requirements have been performed on at least one occasion:

follow organisational policies and procedures relevant to interpreting plans and designs to prepare roof truss drawings and production documents using computers

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


Evidence of Knowledge

A person competent in this unit must be able to demonstrate knowledge of:

content and application of industry and organisational codes and standards for timber roof trusses including

Building Code of Australia

Australian Standards

organizational quality standards

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

roof trusses including:

A Type truss

Truncated standard truss

Girder truss

Truncated girder

Jack truss

Rafter truss

Gable truss

Saddle truss

Raking truss

common industry standard sizes, profiles and spacing dimensions

shapes of common roof types:

bell

bowstring

dual pitch

gabled

hipped

mansard

skillion

for the drawing software:

available drawing types

design limitations

system functions and capabilities

methods to input and amend design factors and other data

methods to store and retrieve drawings

organisational policies and procedures specific to producing drawings and documents using computers:

workplace health and safety

communication reporting lines for internal and external stakeholders

filing computerised drawings and documentation


Assessment Conditions

The following resources must be made available:

computers, keyboards and industry current software programs used to produce drawings and documentation for roof truss layouts

industry and organisational codes and standards for roof trusses

designs, plans and technical specifications for roof trusses

relevant personnel for the purposes of communicating information

documents, spreadsheets and commonly used proforma documents

organisational policies and procedures for producing drawings and documents using computers

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessor requirements

Assessors must:

hold the appropriate assessor competency standards as outlined in regulations; and

be able to demonstrate vocational competencies at least to the level being assessed; and

be able to demonstrate how they are continuing to develop their VET knowledge and skills as well as maintaining their industry currency and assessor competence.


Foundation Skills

This section describes those core and employment skills that are essential to performance and are not explicit in the performance criteria.

Numeracy skills to:

interpret numerical data from designs and plan specifications involving height, length , angles, shape, pitch and load

identify and interpret numerical requirements within industry and organisational codes and standards

input accurate numerical data into software systems

recognise and interpret computer outputs of non-conforming measurements.

Oral communication skills to:

ask questions and actively listen to clarify contents of designs, plans and technical specifications

clearly articulate reasons for variations from industry and organisational codes and standards.

Reading skills to:

interpret:

WHS procedures, industry and organisational codes and standards

designs, plans and technical specifications.

Writing skills to:

input accurate written text into software systems

produce accurate and detailed documents to support interpretation of drawings and assist with production.

Planning and organising skills to:

plan and organise own work in logical sequence and manage own timing and productivity to complete drawings and documents within deadlines.

Problem-solving skills to:

recognise software design limitations and non-conforming designs and refer to others for resolution.

Teamwork skills to:

work as part of an internal and external design and construction team to produce compliant drawings and production documents.

Technology skills to:

use a computer, keyboard and software to complete roof truss drawings and production documents.


Range Statement

Not Applicable


Sectors

Timber Manufactured Products

Timber Merchandising