25274 version 1
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Demonstrate basic knowledge of concrete roof tile systems
Level
2
Credits
5
Purpose
People credited with this unit standard are able to identify roof parts and
types; identify concrete roof tile types and explain laying terminology;
describe the purpose and types of flashings and accessories; describe the
key functions of underlay on a concrete tile roof; describe concrete roof tile
fasteners; and identify preliminary processes to be followed when working on
roofs.
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 by NZQA.
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
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
25274 version 1
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3
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.
4
NZS 4206:1992 Concrete
http://www.standards.co.nz/.
5
Definition
Site procedures – refer to the procedures which are required to be observed for safe
work practices at a particular site.
6
This unit standard may be assessed against off-job.
Interlocking
Roofing
Tiles
is
available
from
–
Elements and performance criteria
Element 1
Identify roof parts and types.
Performance criteria
1.1
The parts that form the roof are identified using industry terminology.
Range
1.2
Common residential roof types are identified using industry terminology.
Range
1.3
includes but is not limited to – gable, dutch gable, four hip,
mansard, skillion.
Roof frame structures are identified in terms of their component parts,
construction material, and the component purposes.
Range
1.4
includes but is not limited to – dormer, eaves, fascia board,
flashing, flat roof, gable, hip, hip end, ridge, soffit, valley.
includes but is not limited to – tile batten, purlin, rafter, roof
underlay.
Roof pitch factors are identified in terms of slope, effect on concrete roof tile
installation, water run-off variation, and recommended pitch for concrete tile
roofs.
 New Zealand Qualifications Authority 2016
25274 version 1
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Element 2
Identify concrete roof tile types and explain laying terminology.
Performance criteria
2.1
Concrete roof tiles are identified in terms of different profile variations available.
Range
2.2
may include but is not limited to – hacienda, villa, elbana,
centurion, type 3.
Tile laying terminology is explained in terms of tile layout on the roof.
Range
lap, straight bond, cross bond.
Element 3
Describe the purpose and types of flashings and accessories.
Performance criteria
3.1
The purpose, type, and installation location of accessory tiles are described.
Range
3.2
includes but is not limited to – ridge tile, barge tile, hip starter.
The purpose and requirements of flashings on concrete roofs are described.
Element 4
Describe the key functions of underlay on a concrete tile roof.
Performance criteria
4.1
Key functions of underlay are described in accordance with NZS 4206.
4.2
Situations where underlay is required are described in accordance with NZS
4206.
Element 5
Describe concrete roof tile fasteners.
Performance criteria
5.1
Nails and clips are described in terms of function and location when attaching
roof tiles.
 New Zealand Qualifications Authority 2016
25274 version 1
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Element 6
Identify preliminary processes to be followed when working on roofs.
Performance criteria
6.1
Processes to follow for securing and storing delivered tiles and battens are
identified in accordance with site procedures.
6.2
Methods for moving concrete tiles are identified in terms of machinery used and
safe lifting techniques.
6.3
Procedures to follow when walking on roof framing and on finished roof tiles are
identified in accordance with site procedures.
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.
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