25282 version 1
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Form and install flashings for metal roof and wall cladding
Level
4
Credits
25
Purpose
People credited with this unit standard are able to: check pre-fabricated metal
flashings; form simple metal flashings; install simple metal flashings; form
and install specialised metal flashings; form and install penetration flashings
for drainage outlets; and form flashing intersections, corners and
terminations.
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
25282 version 1
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4
The New Zealand Building Code 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
This unit standard applies to metal roof and wall cladding. Flashings can be formed
and installed for either.
6
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
Check pre-fabricated metal flashings.
Performance criteria
1.1
Pre-fabricated metal flashings are checked to ensure that they meet job
specifications in accordance with industry practice.
Range
dimensions, folding angles, coding, length and number, meet
cover requirements, colour.
Element 2
Form simple metal flashings.
Performance criteria
2.1
Measurements for flashings are made and recorded in accordance with industry
practice and job specifications.
Range
2.2
measurements, folding limits, setting out.
Flashings are marked out, folded, and cut in accordance with industry practice
and job specifications.
 New Zealand Qualifications Authority 2016
25282 version 1
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Element 3
Install simple metal flashings.
Range
one vertical wall flashing; one horizontal wall flashing; any two of – barge,
apron, ridge, parapet.
Performance criteria
3.1
Preparation for installation is carried out in accordance with industry practice
and job specifications.
Range
3.2
Flashing is fixed in accordance with industry practice and job specifications.
Range
3.3
organisation, selection of tools and equipment, preparation of
surfaces, pre-fitting.
may include sealing.
Flashing is checked for protection from water, vermin, and bird intrusion in
accordance with industry practice and job specifications.
Element 4
Form and install specialised metal flashings.
Range
one expansion flashing; one unsealed lapped flashing; any two of – head, sill
and jamb flashing, capping internal barge.
Performance criteria
4.1
Measurements for specialist flashings are made and recorded in accordance
with job specifications.
Range
measurements, folding limits, setting out.
4.2
Specialist flashings are marked, folded, and cut in accordance with industry
practice and job specifications.
4.3
Preparation for installation is carried out in accordance with industry practice.
Range
4.4
Flashing is fixed in accordance with industry practice and job specifications.
Range
4.5
organisation, selection of tools and equipment, preparation of
surfaces, pre-fitting.
may include sealing.
Flashing is checked for protection from water, vermin, and bird intrusion in
accordance with industry practice and job specifications.
 New Zealand Qualifications Authority 2016
25282 version 1
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Element 5
Form and install penetration flashings for drainage outlets.
Range
watershed, tray, tapered, soaker, diverter, cricket.
Performance criteria
5.1
Roof catchment area and profile design are checked and confirmed as suitable
in accordance with job specifications.
5.2
Measurements for penetration flashings are made and recorded in accordance
with industry practice and job specifications.
5.3
Penetration flashings are marked, folded, and cut in accordance with industry
practice and job specifications.
5.4
Preparation for installation is carried out in accordance with industry practice
and job specifications.
Range
5.5
Flashing is fixed in accordance with industry practice and job specifications.
Range
5.6
organisation, selection of tools and equipment, preparation of
surfaces, pre-fitting.
may include sealing.
Flashing is checked for protection from water, vermin and bird intrusion in
accordance with industry practice and job specifications.
Element 6
Form and install flashing intersections, corners, and terminations.
Range
evidence is required for three of the following intersection types – valley gutters,
ridge hip intersections, barge-ridge intersections, apron and parapet capping,
apron and ridge, saddle flashing.
Performance criteria
6.1
Preparation is carried out in accordance with industry practice and job
specifications.
Range
6.2
organisation, selection of tools and equipment, preparation of
surfaces.
Flashings are marked, folded and cut in accordance with industry practice and
job specifications.
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25282 version 1
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6.3
Flashings are fixed in accordance with industry practice and job specifications.
Range
6.4
may include sealing.
Flashings are checked for protection from water, vermin, and bird intrusion in
accordance with industry practice and 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.
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