NZQA Expiring unit standard
20517 version 4
Page 1 of 3
Title
Install glass in aluminium and Polyvinyl Chloride (PVC) joinery
Level
4
Purpose
Credits
6
This unit standard is for experienced people working in the
glazing industry.
People credited with this unit standard are able to demonstrate
knowledge of glazing systems for aluminium and PVC joinery;
and prepare to install, and install glass in aluminium and PVC
joinery.
Classification
Glass and Glazing > Flat Glass
Available grade
Achieved
Explanatory notes
1
Definition
Worksite requirements – refer to instructions to staff on policy and procedures which
are documented in memo or manual format and are available in the workplace.
These requirements include but are not limited to – company specifications and
procedures, work instructions, manufacturer’s specifications, product quality
specifications, legislative requirements.
2
All work to be done in accordance with the requirements of the Health and Safety in
Employment Act 1992, Building Act 2004, New Zealand Standard (NZS) 4223.3:1999
Code of practice for glazing in buildings – Human impact safety requirements, NZS
4223.4:2008 Code of practice for glazing in buildings – Wind, dead, snow, and live
actions, available at http://www.standards.co.nz.
3
This unit standard applies to annealed, toughened, laminated, and leadlight glass,
and the installation of patent glazing bars.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of glazing systems for aluminium and PVC joinery.
Range
includes but is not limited to – pocket glazing with gaskets and wedges, bead
glazing with gaskets and wedges, pressure bead glazing, bead glazing with
butyl and foam tapes, bead glazing with tapes and sealants
Evidence requirements
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
20517 version 4
Page 2 of 3
1.1
Installation process for each glazing system used for glazing aluminium and
PVC joinery is described in accordance with worksite requirements.
1.2
Sealant and glazing materials used for glazing aluminium and PVC joinery are
identified in accordance with worksite requirements.
Range
evidence is required for each of the glazing systems in the
element range.
Outcome 2
Prepare to install glass in aluminium and PVC joinery.
Evidence requirements
2.1
Selection of glazing materials and sealants reflects their suitability for the
installation method and the specifications for the work.
2.2
All necessary equipment, tools, and installation materials are checked and
assembled before work begins in accordance with worksite requirements.
2.3
Aluminium and PVC joinery frames to be glazed are checked in accordance
with worksite requirements.
Range
includes but is not limited to – obstruction free, clean, dry, primed
and/or sealed, compatibility with glazing material and glazing
systems.
Outcome 3
Install glass in aluminium and PVC joinery.
Evidence requirements
3.1
Installation of glass meets job specifications and worksite requirements.
Range
requirements may include but are not limited to – correct blocking,
glass is plumb and square and correctly orientated, tapes are
sealed at corners, gaskets and wedges are not stretched, tooled
joints are finished correctly, labels are applied where required.
3.2
Where required, reassembly of disassembled frames is completed in
accordance with worksite requirements.
3.3
Operations are completed without injury to personnel or damage to product and
equipment in accordance with job specifications and worksite requirements.
3.4
Installation is cleaned and work area is left clear and cleaned in accordance
with worksite requirements.
3.5
Customer is advised of any relevant maintenance requirements in accordance
with worksite requirements.
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
Replacement information
20517 version 4
Page 3 of 3
This unit standard, unit standard 20515, and unit
standard 20516 were replaced by unit standard 28757.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 April 2004
31 December 2017
Review
2
21 May 2010
31 December 2017
Review
3
18 June 2015
31 December 2017
Rollover
4
15 October 2015
31 December 2020
Consent and Moderation Requirements (CMR) reference
0073
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR 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.
Building and Construction Industry Training
Organisation
SSB Code 101562
 New Zealand Qualifications Authority 2016