25272 version 1
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Describe rainwater handling systems and discharge factors on roofs
Level
3
Credits
4
Purpose
People credited with this unit standard are able to describe rainwater
handling systems and surface water discharge factors.
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
The following applicable documents are available for download on the Department of
Building and Housing website: http://www.dbh.govt.nz/
– Building Code compliance document Clause E1, containing Acceptable Solution
E1/AS1 for Surface Water.
– Building Code compliance document Clause E2, containing Acceptable Solution
E2/AS1 for External Moisture.
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.
 New Zealand Qualifications Authority 2016
25272 version 1
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3
Definitions
Industry practice – sound industry practice that meets legislative requirements.
Job specifications – refer to the documented information found in construction
drawings, project specification documents, legislation, regulations and codes.
Elements and performance criteria
Element 1
Describe rainwater handling systems.
Performance criteria
1.1
Rainwater handling components and systems are described in accordance with
the NZBC and industry practice.
Range
1.2
Rainwater handling system materials and finish coatings types are described in
terms of their advantages and disadvantages.
Range
1.3
includes but is not limited to – guttering, spouting, attachment
systems.
materials – plastics, metals; coatings – paint, factory steel colour
coating, plain.
Rainwater handling component checks are described in terms of meeting job
specifications.
Element 2
Describe surface water discharge factors.
Performance criteria
2.1
Surface water discharge options are described in terms of stormwater drainage,
water harvesting, soak pits, site permeability, outfalls.
2.2
Surface water discharge factors are described in terms of safeguarding people
from injury and property from damage.
2.3
The purpose of NZBC Acceptable Solution E1/AS1 is described in terms of its
use as a surface water discharge information source.
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.
 New Zealand Qualifications Authority 2016
25272 version 1
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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