25280 version 1
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Describe the system characteristics and installation process for
translucent roof
Level
3
Credits
8
Purpose
People credited with this unit standard are able to describe the system
characteristics, installation processes, and common installation problems for
translucent roof.
Subfield
Plumbing, Gasfitting and Drainlaying
Domain
Roofing
Status
Registered
Status date
23 January 2009
Date version published
23 January 2009
Planned review date
31 December 2013
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
The Skills Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0227
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Legislation relevant to this unit standard includes but is not limited to – Health and
Safety in Employment Act 1992, Building Act 2004.
2
Reference
The NZ Metal Roof and Wall Cladding Code of Practice, 2008 is available from the
New Zealand Metal Roofing Manufacturers Inc – http://www.metalroofing.org.nz.
3
The following applicable document is available for download on the Department of
Building and Housing website: http://www.dbh.govt.nz/
– Building code compliance document Clause E2, containing Acceptable Solution
E2/AS1 for External Moisture.
 New Zealand Qualifications Authority 2016
25280 version 1
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4
The New Zealand Building Code (NZBC) is a schedule to the Building Regulations
1992. It provides requirements for compliance with the Building Act 2004 when
constructing a new building or altering an existing one. The Building Code sets out
performance standards that building work must meet and covers aspects such as
structural stability, fire safety, access, moisture control, durability, and services and
facilities.
5
Definitions
Industry use – common use in the roofing industry.
Job specifications – refer to the documented information found in construction
drawings, project specification documents, legislation, regulations and codes.
Manufacturer recommendations – refer to product information and product data
sheets provided by the manufacturer of any given product.
6
This unit standard may be assessed against off-job.
Elements and performance criteria
Element 1
Describe the system characteristics of translucent roof.
Performance criteria
1.1
The characteristics of translucent roof systems are described in terms of cost to
purchase, time to install, finish, robustness, vulnerability to damage, durability,
insulation properties, expansion, profile, and type options.
1.2
New Zealand translucent roof systems are described in terms of their
applications on buildings.
Range
may include but not limited to – sheet material, fastenings,
installation accessories, roof slope, sheet span, appearance.
1.3
Material properties for translucent system types are described in terms of solar
filtering and R-value insulation.
1.4
Advantages and limitations of translucent roof systems are described with
comparison to other roof systems.
1.5
Framing support systems for translucent roof systems are described in
accordance with job specifications and manufacturer recommendations.
Range
1.6
may include but is not limited to – felt or foam isolation.
Fastening for translucent roof systems is described in accordance with
manufacturer recommendations.
 New Zealand Qualifications Authority 2016
25280 version 1
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Element 2
Describe the installation processes for translucent roof.
Performance criteria
2.1
Preparation for installation of translucent roof is described in accordance with
manufacturer recommendations and the New Zealand Metal Roof and Wall
Cladding Code of Practice.
Range
planning, fastening holes, sheet layout and sequence planning,
tools and equipment, accessories and flashings required.
2.2
Expansion allowance requirements are described in accordance with system
manufacturer recommendations.
2.3
Cavity batten requirements are described in accordance with manufacturer
recommendations.
2.4
The placement of translucent roof is described in accordance with manufacturer
recommendations and industry practice.
Range
may include but is not limited to – handling sheeting, walking on
sheeting, purlin protection, cutting, pre-drilling, laying out sheets,
laps, sealants, fixing, stop ends.
Element 3
Describe common installation problems for translucent roof.
Performance criteria
3.1
Common installation problems are described in terms of their cause and effect.
Range
may include but is not limited to – purlin spacings, fixing pattern,
lap joint seals, expansion and contraction, condensation control.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
 New Zealand Qualifications Authority 2016
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Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact The Skills Organisation info@skills.org.nz if you wish to suggest changes
to the content of this unit standard.
 New Zealand Qualifications Authority 2016