Technical Statement
Scope of use
Roofing Industries EZI-FLO™ gutter systems for buildings constructed within the scope of:
• AS/NZS3500.3
• MRM (MRM Code of Practice)
• SA HB 39 Installation code for metal roof and wall cladding
New Zealand Building Code (NZBC)
The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:
- Clause B1 Structure: Performance B1.3.1, B1.3.2, B1.3.3, B1.3.4, B1.3.5, B1.3.6, B1.3.7
- Clause E1 Surface water: Performance E1.3.1, E1.3.2, E1.3.3, E1.3.3(a), E1.3.3(b), E1.3.3(c), E1.3.3(d), E1.3.3(e), E1.3.3(f)
Notes
NEW ZEALAND BUILDING CODE (NZBC)
• B1— Structural, gutter brackets at fixed to the fascia to load application.
• B2/AS1 will be met by nominated materials in the following environments as defined in COLORCOTE or COLORSTEEL
• E1— sets the design rainfall intensities and also makes other requirements for gutters
Evidence
The product meets the requirements set out in the following documents, or relevant parts of cited standards within the documents:
The product has and can make available the following additional evidence to support the above statements:
New Zealand Metal Roofing Manufacturers Association Inc (NZMRM) Code of Practice
Supporting evidence
The product has and can make available the following additional evidence to support the above statements:
Use in Service History
Roofing Industries EZI-FLO™ Rainwater System
Test information available for our coil supplied by NZ Steel (COLORSTEEL) and Pacific Coilcoaters (COLORCOTE) and past history of in-service use of metal long run roof and wall cladding within New Zealand.
Product Criteria
Design requirements
Selection of the correct grade of material and appropriate surface coating is imperative to ensure gutter performs satisfactorily in the environment it is to be installed in and to meet the requirements of the NZBC.
Refer to COLORCOTE and COLORSTEEL using all the latest coating technology to AS/NZS 2728 depending on the durability required for the environment.
Contact Roofing Industries for environmental categories and surface coating literature. Zincalume, Aluminium-Zinc-Magnesium and Galvanised steel and is available in a full range of COLORCOTE and COLORSTEEL pre-painted finishes.
Installation requirements
For full Installation requirements refer to:
• MRM - COP
• NZBC Acceptable Solutions
• RANZ
Materials in contact with Roofing Industries EZI-FLO™ Gutter must be compatible as specified in E2/AS1 Table 21.
Maintenance requirements
Regular maintenance will extend the life of Roofing Industries EZI-FLO™ Gutter and associated accessories.
• Maintenance guides are available from Roofing Industries or can be downloaded from either NZ Steel (COLORSTEEL)or Pacific Coilcoaters (COLORCOTE) website. Guide to regular maintenance.
• Inspect the roof, including fasteners, and repair any damage every 6 months.
• Wash areas not receiving regular rain washing with fresh water at least every 3 – 6 months.
• Remove debris from gutters every 3 - 6 months.
• Remove any noticeable build-up of salt deposits and/or other contaminants when identified.
• Please consult with your local distributor when considering over painting to ensure correct procedures are followed
Environmental
COLORCOTE and COLORSTEEL pre-painted steel has been extensively tested and proven in some of New Zealand's most extreme UV, wind, rain, snow and ice environments.
All COLORCOTE and COLORSTEEL is factory painted at either NZ Steel, Glenbrook or Pacific Coilcoaters, Penrose.
Both plants operate within strict environmental controls.
Environmental category literature available by request or the roof.co.nz website or by contacting Roofing Industries technical helpline 0800 844 822
Roofing Industries recently completed and achieved GreenTagCertTM GreenRate Level A certification for our roll-Formed Metal Roofing, Cladding, Flashing and Rainwater Systems using COLORCOTE.
Relationships
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New Zealand Made |
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Member of New Zealand Green Building Council |