Roofing licence class competencies
Description
This licensing class covers practitioners assembling or installing roofs, or roofing materials for any category of building.
This licensing class includes:
- Concrete or Clay Tile Roof
- Profiled Metal Roof and/or Wall Cladding
- Metal Tile Roof
- Roof Membrane
- Torch on Roof Membrane
- Liquid Membrane Roof
- Shingle or Slate Roof
Competencies
- Competency 1: Demonstrate knowledge of the regulatory environment of the building construction industry.
- Competency 2: Demonstrate knowledge of current Roofing trade practice.
- Competency 3: Carry out planning for roof work.
- Competency 4: Carry out roof work.
These competencies may be demonstrated by meeting some or all of the following performance indicators.
Performance indicators
Competency 1: Demonstrate knowledge of the regulatory environment of the building construction industry.
1.1 Explain the purpose of the Building Act, Building Code, Health and Safety in Employment Act, Resource Management Act and their relationship with the construction process.
1.2 Describe the key features of the Licensed Building Practitioner Scheme.
Includes but not limited to – the licensing classes, restricted building work, and accountability to the Building Practitioners Board.
1.3 Describe the roles and responsibilities of key parties involved in the design and building process.
Roles may include but are not limited to – Licensed Building Practitioners (Design, Site, Specialist, Trade), engineers, other trades (e.g. electrical, plumbing, tiling), building consent authorities (BCAs), and clients.
1.4 Describe how roofing fits within the building consent process.
Includes but not limited to – trigger points for consent, application, inspection, code compliance certificates, and consequences of non-compliance.
1.5 Explain the importance of, and operate within the scope of individual competence, and recognise when other expertise is required.
Includes but not limited to – the implications of the different roofing areas of practice.
Competency 2: Demonstrate knowledge of current roofing trade practice.
2.1 Explain relevant technical roof terms and construction methods.
2.2 Explain relevant current roof installation methods and trade practice.
May include but not limited to – verifying that substrate/structure meets industry requirements, checking roof pitch and establishing falls, laps and junctions in respect of roof layout, timber treatment, use of materials in relation to: corrosion, environmental exposure, exposure to weather, sealants and fixings, rain water goods, drinking water supplies.
2.3 Access and interpret relevant technical information.
May include but not limited to – compliance documents including E2/AS1, (for buildings generally designed under NZS3604) and manufacturers' technical information, industry codes of practice.
2.4 Demonstrate knowledge of the work of other trades and the process of coordination and integration.
Other trades may include but not limited to – electrical, plumbing, tiling, drainlaying, gas fitting, excavating, bricklaying and blocklaying, plastering, carpentry, building services, and window installation.
2.5 Describe safe working practices onsite including working at heights and personal protective equipment (PPE).
May include but not limited to – temporary safety barriers, scaffolding, equipment and machinery, electrical equipment, and safety of others.
2.6 Describe the management of environmental issues on site.
May include but not limited to – building waste and hazardous materials disposal, storage of materials and use of solvents.
2.7 Explain preliminary site set-up requirements.
May include but not limited to – documentation, access, site signage, temporary water and electricity, toilet, and site storage.
Competency 3: Carry out planning for roof work.
3.1 Read and interpret working drawings, specifications, work programming, and schedules of quantities.
3.2 Prepare and/or confirm availability of site specific safety plan.
May include but not limited to – hazard identification, working at height, securing loose material, and material safety data (MSD).
3.3 Confirm roof materials supply and delivery and arrange equipment.
May include but not limited to – measurements, calculation and estimation of quantities, ordering and coordinating material supply and delivery, and planning own work in coordination with the main contractor.
Competency 4: Carry out roof work.
This competency may be demonstrated by meeting some or all of the performance indicators in one or more of the following areas of practice.
Area of practice 1: Concrete or Clay Tile Roof
4.1.1 Work safely at all times.
May include but not limited to – personal safety and safety of others.
4.1.2 Manage environmental issues onsite.
May include but not limited to – building waste and hazardous materials disposal, storage of materials and use of solvents, complying with the Resource Management Act requirements.
4.1.3 Confirm structure is prepared for work to begin.
May include but not limited to – fascia, framing, substrate, valley boards, batten spacings, and anti-ponding boards.
4.1.4 Undertake preparations for installation of concrete or clay tile roof.
May include but not limited to – determining batten set out, setting out bottom course, setting out valley, securing and laying underlay, installing valley trays and flashings.
4.1.5 Carry out installation of concrete or clay tile roof.
May include but not limited to – pinning out roof, laying roof underlay, fixing battens, loading tiles on to roof and laying in sequence, fixing tiles, fitting cut tiles (for valleys and hips), and measuring and fitting top course.
4.1.6 Complete and finish concrete or clay tile roof.
May include but not limited to – installing roof accessories, installing flashing, penetrations and other accessories, bedding and pointing accessories, removing debris from work area, and inspecting finished roof and correcting defect .
Area of practice 2: Profiled Metal Roof and/or Wall Cladding
4.2.1 Work safely at all times.
May include but not limited to – personal safety and safety of others.
4.2.2 Manage environmental issues onsite.
May include but not limited to – building waste and hazardous materials disposal, storage of materials and use of solvents, complying with the Resource Management Act requirements.
4.2.3 Confirm structure is prepared for work to begin.
May include but not limited to – fascia, framing, substrate, valley boards, purlin spacings.
4.2.4 Undertake preparations for installation of profiled metal roof and/or wall cladding.
May include but not limited to – determining fixing pattern, confirming underlay/support, and under flashings.
4.2.5 Carry out installation of profiled metal roof and/or wall cladding.
May include but not limited to – loading roof materials on to work area, determining fixing pattern, marking and pre-drilling sheets, fixing roof and/or wall cladding.
4.2.6 Complete and finish metal roof and/or wall cladding.
May include but not limited to – installing penetrations, installing accessories, measuring and installing flashings, cleaning swarf and debris from work area, and inspecting finished roof and correcting defects.
Area of practice 3: Metal Tile Roof
4.3.1 Work safely at all times.
May include but not limited to – personal safety and safety of others.
4.3.2 Manage environmental issues onsite.
May include but not limited to – building waste and hazardous materials disposal, storage of materials and use of solvents, complying with the Resource Management Act requirements.
4.3.3 Confirm structure is prepared for work to begin.
May include but not limited to – fascia, framing, substrate, valley boards, batten spacings.
4.3.4 Undertake preparations for installation of metal tile roof.
May include but not limited to – determining batten set out, and setting out bottom course.
4.3.5 Carry out installation of metal tile roof.
May include but not limited to – pinning out roof, laying roof underlay, installing valley trays, fixing battens, loading tiles on to roof, fixing tiles, fitting cut tiles (for valleys and hips), and measuring and fitting top course.
4.3.6 Complete and finish metal tile roof.
May include but not limited to – nailing off to manufacturers' specifications, installing roof accessories, flash penetrations and other accessories, cleaning swarf and debris from work area, and inspecting finished roof and correcting defects.
Areas of practice 4: Roof Membrane
4.4.1 Work safely at all times.
May include but not limited to – personal safety and safety of others.
4.4.2 Manage environmental issues onsite.
May include but not limited to – building waste and hazardous materials disposal, storage of materials and use of solvents, complying with the Resource Management Act requirements.
4.4.3 Confirm structure is prepared for work to begin.
May include but not limited to – fascia, framing, substrate.
4.4.4 Undertake preparations for installation of roof membrane.
May include but not limited to – checking substrate including, material, moisture content, falls, fixings, soundness, removing loose material, taping of plywood joints, installing accessories – scuppers, substrate vents, overflows, sumps, forming rebate, and installing drip flashings.
4.4.5 Carry out installation of roof membrane.
May include but not limited to – loading membrane on to roof, arranging membrane orientation and cutting to length, applying adhesive and laying membrane, applying seam tapes to waterproof joints and laps, and pressure rolling membrane and laps.
4.4.6 Complete and finish roof membrane
May include but not limited to – finishing membrane to upstands, chases, pressure bar flashings, flashing roof penetrations, removing debris, inspecting finished roof and correcting defects, and carrying out water test.
Area of practice 5: Torch on Roof Membrane
4.5.1 Work safely at all times.
May include but not limited to – personal safety and safety of others.
4.5.2 Manage environmental issues onsite.
May include but not limited to – building waste and hazardous materials disposal, storage of materials and use of solvents, complying with the Resource Management Act requirements.
4.5.3 Confirm structure is prepared for work to begin.
May include but not limited to – fascia, framing, substrate.
4.5.4 Undertake preparations for installation of torch on roof membrane.
May include but not limited to – checking substrate including, moisture content, falls, fixings, soundness, removing loose material, installing accessories – scuppers, substrate vents, overflows, sumps, forming rebate, and installing drip flashings.
4.5.5 Carry out installation of torch on roof membrane.
May include but not limited to – loading and arranging sheet and lap orientation (including cutting), applying primer and allowing to dry, applying under flashings, torching on membrane to substrate, and torching and fusing the end and side laps.
4.5.6 Complete and finish torch on roof membrane.
May include but not limited to – finishing membrane to upstands, chases , pressure bar flashings, flashing roof penetrations, removing debris, correcting defects, applying surface coatings, if required, and inspecting finished roof.
Area of practice 6: Liquid Membrane Roof
4.6.1 Work safely at all times.
May include but not limited to – personal safety and safety of others.
4.6.2 Manage environmental issues onsite.
May include but not limited to – building waste and hazardous materials disposal, storage of materials and use of solvents, complying with the Resource Management Act requirements.
4.6.3 Confirm structure is prepared for work to begin.
May include but not limited to – fascia, framing, substrate.
4.6.4 Undertake preparations for installation of liquid membrane roof.
May include but not limited to – checking substrate including, moisture content, falls, fixings, soundness, removing loose material, rectifying and filling defects to substrate, installing accessories – scuppers, overflows, sumps, substrate vents, and installing drip flashings.
4.6.5 Carry out installation of liquid membrane roof.
May include but not limited to – applying primer and allowing to dry, applying penetration and joint reinforcing strips to substrate, and applying membrane.
4.6.6 Complete and finish liquid membrane roof.
May include but not limited to – finishing membrane upstands and drip flashings, flashing roof penetration, removing debris, applying surface coating, if required, inspecting finished roof, and correcting defects.
Area of practice 7: Shingle or Slate Roof
4.7.1 Work safely at all times.
May include but not limited to – personal safety and safety of others.
4.7.2 Manage environmental issues onsite.
May include but not limited to – building waste and hazardous materials disposal, storage of materials and use of solvents, complying with the Resource Management Act requirements.
4.7.3 Confirm structure is prepared for work to begin.
May include but not limited to – fascia, framing, substrate, valley boards, batten spacings, and anti-ponding boards.
4.7.4 Undertake preparations for installation of shingle or slate roof.
May include but not limited to – installing underlays and underflashings, battens and/or plywood, installing drip flashings, and sorting and sizing shingles.
4.7.5 Carry out installation of shingle or slate roof.
May include but not limited to – pinning out roof, laying roof underlay, fixing battens, loading shingles or slate onto roof, fixing shingles or slate, fitting cut shingles or slate (for valleys and hips), and measuring and fitting top course.
4.7.6 Complete and finish shingle or slate roof.
May include but not limited to – flashing penetrations and fitting flashings, removing debris, inspecting finished roof, and correcting defects.
Frequency of assessment
The first assessment of current competence will occur 2 years after the date of the issue of the licence. Ongoing assessments will occur every 2 years after the date of the last assessment.