NZQA Expiring unit standard version 2 Page 1 of 5. Describe roof shingle preparation and installation procedures

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1 Page 1 of 5 Title Describe roof shingle preparation and installation procedures Level 3 Credits 12 Purpose People credited with this unit standard are able to: describe the planning and checks required prior to installing roof shingles; demonstrate knowledge of material calculations; describe the process of installing and checking a roof shingle substrate and battens; describe the process of installing asphalt roof shingles, wooden shingles, and slate shingles; and describe the installation considerations for flashings on roof shingles. Classification Plumbing, Gasfitting and Drainlaying > Roofing Available grade Achieved Explanatory notes 1 Legislation relevant to this unit standard includes but is not limited to Health and Safety in Employment Act 1992, Building Act The following applicable document is available for download on the Department of Building and Housing website: Building Code compliance document Clause E2, containing Acceptable Solution E2/AS1 for External Moisture. 3 The New Zealand Building Code (NZBC) is a schedule to the Building Regulations 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 Definitions 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 Shingles is used as in this unit standard as a term to include shakes; roof shingles are coverings designed to protect buildings by having individual elements overlapping each other. Shingles are made from materials such as asphalt, sawn wood or composite materials; shakes are split from timber logs (instead of sawn) and reshaped by manufacturers, they are thicker at the butt end than timber shingles.

2 Page 2 of 5 Site procedures refer to the procedures which are required to be observed for safe work practices at a particular site. 5 This unit standard may be assessed against off-job. Outcomes and evidence requirements Outcome 1 Describe the planning and checks required prior to installing roof shingles. 1.1 The function of plans and specifications is described in relation to a job sheet, material schedule, and work schedule. 1.2 Site check activities are described in accordance with common job preparing the site, health and safety checks and signs, site hazards. 1.3 Notifiable work activities and procedures relevant to roof shingles are identified and described in accordance with Department of Labour requirements. 1.4 Roof framing checks that are used to verify the builder s work prior to commencing roof installation are described. 1.5 On-site storage of shingles is described in accordance with site procedures. 1.6 The purpose of an initial site meeting is described in terms of job organisation. Outcome 2 Demonstrate knowledge of material calculations. 2.1 Methods of calculation are described in accordance with job roof area from plans, shingle area, underlay area, substrate area. Outcome 3 Describe the process of installing and checking a roof shingle substrate and battens. 3.1 Description includes identifying the substrate sheet pattern, fixing, and expansion gaps. 3.2 Description includes identifying potential defects in substrate and battens.

3 Page 3 of Description includes checking the structure for conformity with the NZBC. 3.4 Description includes the laying of underlay and membrane, where required, in accordance with manufacturer recommendations. Outcome 4 Describe the process of installing asphalt roof shingles. 4.1 Description includes the mark out of the plywood substrate in accordance with the shingle manufacturer recommendations. 4.2 Description includes identifying the effects of asphalt shingle temperature on shingle installation. 4.3 Description includes the laying procedure in accordance with job initial course, ridges, hip cappings. 4.4 Description includes forming valleys in accordance with job open valley, closed valley. 4.5 Description includes identification and installation of flashings for an asphalt shingle roof. 4.6 Description includes the use of asphalt roof cement to seal shingles down in accordance with manufacturer recommendations. Outcome 5 Describe the process of installing wooden shingles. 5.1 Description includes laying details for the starter course and subsequent courses in accordance with manufacturer recommendations. 5.2 Description includes the laying procedure options for timber ridges and hip cappings in accordance with job 5.3 Description includes the laying procedure for valleys in accordance with job 5.4 Description includes identification and installation of flashings for a wooden shingle roof.

4 Page 4 of 5 Outcome 6 Describe the process of installing slate shingles. 6.1 Description includes laying details for the starter course and subsequent courses in accordance with manufacturer recommendations. 6.2 Description includes the laying of slate ridges and hip flashings in accordance with job 6.3 Description includes the forming of slate valleys in accordance with job 6.4 Description includes identification and installation of flashings for a slate shingle roof in accordance with job Outcome 7 Describe the installation considerations for flashings on roof shingles. 7.1 Description includes identification of examples of penetrations in accordance with the NZBC. 7.2 Description includes lap allowances and fixings for flashings in accordance with job 7.3 Description includes sealant application to seal flashing joints in accordance with job Replacement information This unit standard was replaced by unit standard 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 23 January December 2020 Review 2 16 March December 2020 Consent and Moderation Requirements (CMR) reference 0227 This CMR can be accessed at

5 Page 5 of 5 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.