25273 version 1
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Level 2
Credits 4
Purpose People credited with this unit standard are able to interpret plans and specifications for roofing and perform simple roofing calculations.
Subfield Plumbing, Gasfitting and Drainlaying
Domain
Status
Status date
Date version published
Roofing
Registered
23 January 2009
23 January 2009
Planned review date
Entry information
31 December 2013
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 the Building Act
2004.
2 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.
3 Definition
Job specifications
– refer to the documented information found in construction drawings, project specification documents, legislation, regulations and codes.
4 This unit standard may be assessed against off-job.
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New Zealand Qualifications Authority 2020

25273 version 1
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Element 1
Interpret plans and specifications for roofing.
Performance criteria
1.1 Interpretation includes determining dimensions and quantities of materials in accordance with plans and specifications.
1.2
1.3
Plans and specifications are interpreted correctly in accordance with the NZBC.
Parts of drawings and specifications where roofing information can be obtained are identified.
2.1
Range may include but is not limited to – elevations, plan views, sections, detail drawings, scale drawings, full size.
Element 2
Perform simple roofing calculations.
Performance criteria
Roofing areas are calculated correctly in accordance with plans and specifications.
2.2 Underlay quantity is calculated correctly in accordance with plans and specifications.
2.3 Accessory quantities are calculated correctly in accordance with plans and specifications.
Range may include but is not limited to – ridges, valleys, guttering, barges.
2.4 Waste factors are calculated in accordance with job specifications.
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.
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New Zealand Qualifications Authority 2020

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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.
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New Zealand Qualifications Authority 2020