1687 version 4
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Fix underlay for concrete roof tiles
Level
4
Credits
4
Purpose
People credited with this unit are able to: demonstrate knowledge of the
composition and use of underlays commonly used on a concrete tile roof; lay
underlay for a concrete tiled roof; and maintain a safe working environment.
Subfield
Plumbing, Gasfitting and Drainlaying
Domain
Roofing
Status
Registered
Status date
27 October 2006
Date version published
22 August 2008
Planned review date
30 April 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 the Health and
Safety in Employment Act 1992, and the Building Act 2004.
2
Performance must comply with current legislation, regulations, and codes. For more
detailed information about which regulations and codes are relevant, please refer to
the assessors’ page of The Skills Organisation Ltd website http://www.skills.org.nz.
New Zealand Standard (NZS) 4206:1992 Concrete interlocking roofing tiles which is
within this unit standard is available from http://www.standards.co.nz.
 New Zealand Qualifications Authority 2016
1687 version 4
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3
Definitions
Company requirements include the policy, procedures, and methodologies of the
company. They include requirements documented in company and site health and
safety plans, quality assurance documents, and contract work programmes;
Site procedures refer to the procedures which are required to be observed for safe
work practices at a particular site;
Job specifications refer to the documented information found in construction
drawings, project specification documents, legislation, regulations, and codes;
Manufacturers’ recommendations refer to product information and product data
sheets provided by the manufacturer of any given product.
4
This unit standard applies to both new roof and re-roofing installation.
Elements and performance criteria
Element 1
Demonstrate knowledge of the composition and use of underlays commonly used on a
concrete tile roof.
Performance criteria
1.1
The types of underlay commonly used are identified, and the characteristics of
each are described in terms of the manufacturer’s recommendations.
1.2
The implications of non or incorrect use of underlay are explained with respect
to adverse consequences on the performance of the roof.
1.3
Situations where underlay must be used to conform to the requirements of NZS
4206:1992 are identified and explained to illustrate the reasons for its use.
Element 2
Lay underlay for a concrete tiled roof.
Performance criteria
2.1
The underlay manufacturer’s durability statement is checked to confirm
compliance with job specifications.
2.2
Underlay is laid and fixed in accordance with the requirements of NZS
4206:1992, or the job specification where its requirements exceed those of the
standard, in accordance with company requirements.
2.3
Underlay damaged during roofing activity is repaired or replaced in accordance
with the requirements of NZS 4206:1992 or the requirements of the job
specification where they exceed those of the standard, in accordance with
company requirements.
2.4
Underlay finishes are formed in accordance with job specifications and
company requirements.
 New Zealand Qualifications Authority 2016
1687 version 4
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Element 3
Maintain a safe working environment.
Performance criteria
3.1
Work practices are carried out without injury to people or damage to equipment,
building, or plant, in accordance with legislation, regulations, codes, health and
safety in employment guidelines, and company requirements.
3.2
Personal protective equipment for the task at hand is selected and worn in
accordance with manufacturers’ recommendations.
Range
includes but is not limited to – hard hat, sunblock, ear muffs, safety
glasses, gloves, knee pads, high visibility clothing, safety harness.
3.3
Work area is cordoned off and safety notices and notification of work signs are
distributed and erected, in accordance with site procedures.
3.4
Work area is kept clear of debris and unnecessary items in accordance with site
procedures.
Please note
Providers must be accredited by the Qualifications Authority, 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 the Qualifications Authority 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.
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