25292 version 1
Page 1 of 5
Demonstrate knowledge of liquid roof membrane systems
Level
2
Credits
6
Purpose
People credited with this unit standard are able to demonstrate knowledge:
of liquid roof membrane substrates and system materials; equipment used in
liquid membrane roofing; regulations and important information sources that
apply to liquid roof membrane projects; liquid roof membrane project
organisation; site preparation activities; and liquid roof membrane installation
process.
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
25292 version 1
Page 2 of 5
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
This unit standard includes EPDM liquid membrane covered by Building Code
compliance document Acceptable Solution E2/AS1 for Clause E2 External Moisture.
5
Definitions
Alternative solution – a building design solution that differs totally or partially from
those contained in the Acceptable Solutions, but still meets the performance
requirements of the Building Code. It can be a minor variation from a Compliance
Document, or a radically different design and construction approach.
Industry use – common use in the roofing industry.
Job specifications – refer to the documented information found in construction
drawings, project specification documents, legislation, regulations and codes.
Manufacturer recommendations – refer to product information and product data
sheets provided by the manufacturer of any given product.
Notifiable work is as defined in A Guide to the Health and Safety in Employment Act
1992 (Wellington: Department of Labour, 2003); available at
http://www.osh.govt.nz/order/catalogue.
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.
Elements and performance criteria
Element 1
Demonstrate knowledge of liquid roof membrane substrates and system materials.
Performance criteria
1.1
Roofing terms relevant to liquid membrane are identified in accordance with
industry use.
Range
at least five terms.
1.2
Substrate types suitable for liquid roof membrane are identified in accordance
with manufacturer recommendations.
1.3
The importance of proper substrate preparation is identified in terms of
achieving soundness of the finished installation.
1.4
Roof slope suitable for liquid roof membrane application is identified in
accordance with the NZBC.
 New Zealand Qualifications Authority 2016
25292 version 1
Page 3 of 5
1.5
System materials used in liquid roof membrane application are identified in
accordance with job specifications and manufacturer recommendations.
Range
includes membrane reinforcement.
Element 2
Demonstrate knowledge of equipment used in liquid membrane roofing.
Performance criteria
2.1
Personal protection equipment used for installing liquid roof membrane is
identified in accordance with material safety data information and site
procedures for liquid roof membrane application.
Range
includes solvent spray system.
2.2
Firefighting equipment and its potential use when applying liquid roof membrane
is described in accordance with site procedures.
2.3
Equipment and personal tools used for applying liquid roof membrane are
described in terms of their purpose.
Range
equipment includes – scaffolding, ladders, residual current device
(RCD), mixing paddles, airless spray unit;
personal tools include – apron, hammer, rule, chalk line, stanley
knife, trowel set, scissors, caulking gun, clean pails, nap roller,
scraper.
Element 3
Demonstrate knowledge of regulations and important information sources that apply to
liquid roof membrane projects.
Performance criteria
3.1
The information contained in Material Safety Data Sheets (MSDS) is identified.
3.2
The function of the NZBC and associated regulations is identified in relation to
liquid membrane roofing projects.
3.3
The purpose of an alternative solution is identified in relation to the NZBC.
3.4
The primary purpose of notifiable work is identified compared to non-notifiable
work.
 New Zealand Qualifications Authority 2016
25292 version 1
Page 4 of 5
Element 4
Demonstrate knowledge of liquid roof membrane project organisation.
Performance criteria
4.1
The function of a work schedule is identified in terms of controlling the work.
4.2
The function of a job sheet is identified in terms of defining the work.
4.3
Weather considerations are identified in terms of their effect when carrying out
and planning the work.
4.4
The roles and responsibilities of project people are described in accordance
with company requirements.
Range
may be for a simulated scenario;
project people may include but are not limited to – site supervisor,
foreperson, architect, installation gangs, owner.
Element 5
Demonstrate knowledge of site preparation activities.
Performance criteria
5.1
A minimum of three basic site preparation activities are identified.
5.2
Delivered material checks are identified in accordance with job specifications.
5.3
Material storage requirements are identified according to material type in
accordance with site procedures.
5.4
Roof structure inspections are identified that establish readiness for liquid roof
membrane application in accordance with job specifications.
Element 6
Demonstrate knowledge of liquid roof membrane installation process.
Performance criteria
6.1
Liquid roof membrane installation process is identified in accordance with
manufacturer recommendations.
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.
 New Zealand Qualifications Authority 2016
25292 version 1
Page 5 of 5
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