6513 Restore, Preserve, and Maintain Natural Stone Features, Monuments, and Buildings

NZQA registered unit standard 6513 version 4 Page 1 of 5

Title Restore, preserve, and maintain natural stone features, monuments, and buildings

Level 5 Credits 20

Purpose People credited with this unit standard are able to: demonstrate knowledge of factors relating to degradation of natural stone; complete project preparations to restore, preserve, and maintain natural stone features, monuments, and buildings; set up work area; restore damaged area; preserve and maintain natural stone; and complete work operations.

Classification Masonry > Stonemasonry

Available grade Achieved

Explanatory notes

1 New Zealand Standards, legislation, and guides relevant to this unit standard include: Health and Safety in Employment Act 1992 (HSE Act); Resource Management Act 1991; Building Act 2004; NZS 4210:2001, Masonry construction: Materials and workmanship; A Guide to Respiratory Protection (Department of Labour, 1999), available at http://www.osh.govt.nz/order/catalogue/pdf/RespiratoryProtection.pdf.

2 Glossary of Terms Company requirements refer to instructions to staff on policy and procedures that are documented in memo or manual form and are relevant to the workplace. Specifications refer to documented specifications and may include any or all of the following: manufacturer's specifications and/or recommendations; material specifications; job specifications; and specialist specifications, for example: architect; designer; engineer; client. Site safety plan refers to the documented safety plan for the site which is required by law to ensure compliance with the requirements of the HSE Act 1992.

3 Reference material relevant to this unit standard include: Safety data sheets relevant to products or materials being used for this unit standard, available from manufacturers or suppliers, containing product ingredient content, safe application and use information.

4 Natural stone products include granite, marble, basalt, and limestone.

Building and Construction Industry Training Ó New Zealand Qualifications Authority 2018 Organisation SSB Code 101562 NZQA registered unit standard 6513 version 4 Page 2 of 5

Outcomes and evidence requirements

Outcome 1

Demonstrate knowledge of factors relating to degradation of natural stone.

Evidence requirements

1.1 Physical causes of degradation are described in terms of thermal expansion, freezing, incorrect manufacturing, incorrect installation, incorrect cleaning, quality of anchorage system, incorrect adhesives, and incorrect anchorage system.

1.2 Chemical causes of degradation are described in terms of carbon dioxide and sulphur dioxide.

1.3 Characteristics of type of natural stone are identified in terms of carbonaceous, siliceous, and sandstone.

Outcome 2

Complete project preparations to restore, preserve, and maintain natural stone features, monuments, and buildings.

2.1 Client's requirements are confirmed in terms of restoration work to be undertaken.

2.2 Types of stone for the work are identified in accordance with specifications.

Range consider all types – granite, marble, concrete, basalt, sandstone.

2.3 Restoration requirements are identified in terms of type of deterioration and extent.

2.4 Specifications are drawn up in terms of areas to be restored.

2.5 Schedule of work is developed to meet specifications.

2.6 Access to site is arranged to meet proposed schedule of work.

2.7 Site safety precautions are complied with as set down in the site safety plan.

Outcome 3

Set up work area.

3.1 Area where restoration is to be conducted is in accordance with site plan and specifications.

3.2 Actions taken in the event that the site is not suitable are in accordance with company requirements.

3.3 Plant and materials are located to facilitate work flow.

3.4 Work of other trades is protected prior to commencement of work in accordance with company requirements.

3.5 Lifting and handling equipment is set up in accordance with specifications.

Outcome 4

Restore damaged area.

4.1 Damaged area is cut out without further damage to surrounding stonework.

4.2 Area to be repaired is stabilised to prevent damage to project and injury to personnel.

Range injection of resin, riveting of slabs, chemical nogs, expansion nogs, injection dowels, sealed joins, replacement of anchors.

4.3 Stone is restored with profile and design in accordance with specifications.

Range natural stone, plastic stone.

4.4 Completed restoration is in accordance with specifications.

Outcome 5

Preserve and maintain natural stone.

5.1 Stonework is cleaned using method consistent with type and condition of stone.

Range low pressure water spray, controlled sand blasting, dry or wet chemicals.

5.2 Agent applied to restored area to preserve and protect the stonework is consistent with type of stone.

Range consider all types – granite, marble, concrete, basalt, sandstone.

5.3 Preventative maintenance programme is established in accordance with contract.

Outcome 6

Complete work operations.

6.1 Operations are completed without damage to project, plant, or materials.

6.2 Activities comply with the requirements of the site safety plan.

6.3 Plant is used, maintained, repaired, cleaned, and stored in accordance with specifications and company requirements.

6.4 Documentation is completed in accordance with company requirements.

6.5 Worksite is left as specified in terms of contract with client.

6.6 Surplus materials are dealt with in accordance with legal and company requirements.

Range hazardous, non-hazardous.

Planned review date 31 December 2013

Status information and last date for assessment for superseded versions Process Version Date Last Date for Assessment Registration 1 30 January 1997 31 December 2011 Revision 2 8 April 1999 31 December 2011 Review 3 19 September 2008 31 December 2011 Revision 4 21 July 2011 N/A

Consent and Moderation Requirements (CMR) reference 0048 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 (CMRs). 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.

Comments on this unit standard

Please contact the Building and Construction Industry Training Organisation [email protected] if you wish to suggest changes to the content of this unit standard.

Building and Construction Industry Training Ó New Zealand Qualifications Authority 2018 Organisation SSB Code 101562