2045 Install, Glass to Glass And/Or Metal with Structural Silicone Glazing

Explanatory notes

1Definition

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.

2All 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, available at

Outcomes and evidence requirements

Outcome 1

Clean and prepare substrates for structural silicone glazing.

Evidence requirements

1.1Materials and equipment are checked against job specifications in accordance with worksite requirements.

1.2Any oil, grease and soluble salts are removed from substrates using agents compatible with substrate finish in accordance with worksite requirements.

1.3Any traces of cleaning agents are removed from substrate surfaces in accordance with worksite requirements.

1.4Surfaces are protected from contamination after cleaning and prior to application of sealant in accordance with worksite requirements.

1.5Substrates are primed, where required, in accordance with worksite requirements.

Rangeincludes but is not limited to – primer is applied only to those areas which can be sealed within the same working day to avoid contamination after priming and prior to sealant application.

1.6Sealant suitable for the application is selected in accordance with worksite requirements.

1.7Preparation is completed without injury to personnel or damage to products and equipment in accordance with job specifications and worksite requirements.

Outcome 2

Install glass and apply sealant.

Evidence requirements

2.1Glass is securely fixed to minimise movement and checked for re-contamination prior to sealant application in accordance with worksite requirements.

2.2Primed surfaces are touch dry, masking tape is applied and all voids, gaps or joints are sealed in accordance with worksite requirements.

2.3Sealant is tooled into voids, gaps or joints in accordance with worksite requirements.

2.4Masking tape and any spills are removed without damage to, or contamination of, surfaces in accordance with worksite requirements.

2.5Sealant is fully cured prior to movement of the frame or panel in accordance with worksite requirements.

2.6Glass is installed without injury to personnel or damage to products and equipment in accordance with job specifications and worksite requirements.

Outcome 3

Complete structural silicone glazing.

Evidence requirements

3.1Glazed frames or panels are weatherproofed, cleaned, and made free from residue in accordance with worksite requirements.

3.2Operations are completed without injury to personnel or damage to products and equipment in accordance with job specifications and worksite requirements.

3.3Structural silicone glazing is tested for adhesion failure in accordance with worksite requirements.

3.4Customer is advised of any relevant maintenance requirements in accordance with worksite requirements.

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

This CMR can be accessed at

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.