Refer to ~ for ~.

Refer to pre-painted metal cladding section/s for the protective coating required to meet the NZBC durability requirements.

Refer to the general section 1233 REFERENCED DOCUMENTS. The following documents are specifically referred to in this section:

Health and Safety at Work Act 2015

Health and Safety in Employment Regulations 1995

WorkSafe - Guidelines for the provision of facilities and general safety in the construction industry.

WorkSafe - Scaffolding in New Zealand - Good Practice Guidelines

Manufacturer's and supplier's documents relating to this part of the work:

Ribon Continuous Interlocking Soffits Manual

BRANZ Appraisal 1093 - Ribon Continuous Interlocking Soffit System

Manufacturer/supplier contact details

The following abbreviations are used throughout this part of the specification:

Provide a material manufacturer/supplier warranty:

• Provide this warranty on the manufacturer/supplier standard form.
• Commence the warranty from the date of practical completion of the contract works.

Refer to the general section 1237 WARRANTIES for additional requirements

Provide a installer/applicator warranty:

• Provide this warranty on the installer standard form.
• Commence the warranty from the date of practical completion of the contract works.

Refer to the general section 1237 WARRANTIES for additional requirements

Installers to be experienced in the installation of Ribon Continuous Interlocking Soffit System and approved by Ribon Ltd.  If requested provide evidence of qualification / experience prior to commencing work.

Refer to the requirements of the Health and Safety at Work Act 2015.  Comply with:

• Relevant New Zealand safety legislation including Health and Safety in Employment Regulations 1995.
• WorkSafe publications including, Guidelines for the provision of facilities and general safety in the construction industry.
• WorkSafe - Scaffolding in New Zealand - Good Practice Guidelines
• Relevant codes of practice, guides, guidelines and standards.

Substitutions are not permitted to any specified system, or associated components and products.

Refer to the general section 1239 OPERATION & MAINTENANCE for provision of the following general operation and maintenance information as electronic PDF format documents:

~

Provide this information prior to practical completion.

Design and use the fixings appropriate for the wind design parameters and to NZMRM CoP and Ribon Ltd requirements.   Allow for specific loadings at corners and the periphery of the soffit, where localised pressure factors apply.

NOTE: Consult with Ribon Ltd for requirements.

Install soffit in accordance with the NZMRM CoP and Ribon Continuous Interlocking Soffits Manual, to form a weather-tight performance for the completed soffit system, including all penetrations through the soffit and junctions with walls, roofs and parapets.

To NZBC C/AS1, 5.4 Exterior surface finishes, NZBC C/AS2, 5.8 External cladding systems or NZBC C/VM2.

Co-ordinate to ensure substrate and preparatory work is complete and other work programmed in the order required for access and completion of the soffit.

Ribon 150 panel roll formed from formable grade 0.55 BMT G300 ColorCote® MagnaFlow™ pre-painted coil with protective film, coated to AS1397.  Manufactured in custom lengths as required to a maximum length of 8m.  Available in the ColorCote® MagnaFlow™ and ColorCote® MagnaFlow X™ colour ranges.

Refer to SELECTIONS for Coating Systems - Exposure Zone classification and colour range.

Formability steel sheet, roll forming to G300, coated to AS 1397.

Formability steel sheet, roll forming to G300, coated to AS 1397.

Formability steel sheet, roll forming G300, coated to AS 1397

Formability steel sheet, roll forming to G300, coated to AS 1397.

Formability steel sheet, roll forming to G300, coated to AS 1397.

Aluminium alloy series 5000 temper H36 for roll forming.

Aluminium alloy series 5000 temper H36 for roll forming.

Ribon wall bracket manufactured from 0.90 BMT GALV, ZINCALUME® or ZAM® products.  Folded from coil to form a U-channel in 6m lengths.  Slots punched out into the back of the bracket to fix bracket to wall framing.  Bracket used to retain the end of the soffit bracket or as hangers from the building's support framing which act as suspended framing to support the Ribon Extension Bracket.

Ribon Soffit Bracket manufactured from 0.90 BMT GALV, ZINCALUME® or ZAM® products.  Brackets formed from flat patterns laser cut to length, which are then pressed to form strengthening ribs and folded tabs, used to retain the panel.  Brackets available in 4 standard lengths.  Refer to SELECTIONS.

Ribon Fascia Pivot Bracket manufactured from 0.90 BMT GALV, ZINCALUME® or ZAM® products.  Brackets are laser cut as a flat pattern and then pressed to provide strengthening.  Bracket fixed to Soffit Bracket with a 4mm rivet and when used in combination support sloping soffits from 0° to 22.5°.  Bracket can also be used to support a fascia / gutter system.  Refer to SELECTIONS.

Ribon Extension Bracket manufactured from 0.90 BMT GALV, ZINCALUME® or ZAM® products.  Brackets are laser cut as a flat pattern and machine pressed to form a Z shape or U-channel.  Bracket fixed to Soffit Bracket to provide support for larger areas of soffit.  Bracket can also be fixed directly to the framing or fixed to suspended framing made up of Wall Bracket hangers.  Bracket also used to retain soffit panels.  Refer to SELECTIONS.

Ribon Panel Joiner, an extruded powder coated two-piece aluminium jointer, manufactured in 4m lengths. Used to join soffit panels at external and external mitres and for soffit panel lengths longer than 8m.

To AS 3566.  Screws appropriate to the cladding material and the supporting structure, as required by Ribon Ltd and with a minimum Class 4 or 5 durability and not less than the material being fixed.  Screws into timber to penetrate a minimum of 30mm.  Screw fasteners to be head stamped identifying the manufacturer and class.  Refer to SELECTIONS.

Sealed aluminium, minimum diameter 4.0mm.  Refer to Ribon Ltd for requirements.

Proprietary fascia panel / gutter system to manufacturer's details and requirements as shown on the drawings.

Neutral curing MS sealant or polymer sealant as required by Ribon Ltd and used as directed.

Inspect the roof framing and supporting structure to ensure that it is complete and fully braced ready for soffit panels and free from any misalignments or protrusions that could damage the soffit panels.

Take delivery of products dry and undamaged on pallets, and keep on pallet.  Protect edges and corners from damage, cover to keep dry until fixed.

Avoid distortion and contact with potentially damaging surfaces.  Do not drag panels across each other, or across other materials.  Protect edges, corner and surface finish from damage.  Reject all product with damaged faces or edges.

Do not commence work until the substrate is of the standard required for the specified finish; level and in true alignment.  Moisture content of timber framing must not exceed the requirements specified by NZS 3602 to minimise shrinkage and movement after soffits are fixed.

Form small holes to accommodate penetrations through the soffit to Ribon Ltd requirements.

Before proceeding with installation Inspect framing, check that wall underlay is in place and report to contract administrator any issues that require attention.

Install soffit to NZBC E2/AS1 5.3 Soffits Figure 8A and Ribon Continuous Interlocking Soffits Installation Manual and Ribon Technical Details.

Determine the correct drop height for the wall bracket in accordance with the Drop Height Tables scheduled in Ribon Continuous Interlocking Soffits Manual.

Use a string line or chalk line to mark the drop height and screw fix the wall bracket to the wall framing at each stud.  Wall brackets manufactured in 6m lengths.  In sloping soffit or gable end situations a wall bracket is not required (drop height tables are provided).

Insert the pre-assembled soffit bracket into the wall bracket and screw fix it to the rafter once it is leveled.  Check fascia pivot bracket has been set plumb before tightening the screws.  Screw fix the soffit bracket to the wall bracket through the folded tab on the soffit bracket.

In sloping soffit or gable end situations refer to the drop heights provided.  Screw fix the soffit bracket to the rafter or outrigger at every screw hole to add maximum strength.  Screw the soffit bracket to the rafter, and fix fascia pivot bracket once it is set plumb.

Soffit brackets manufactured in 4 different lengths, 196mm, 345mm, 495mm and 645mm.

Install fascia panel / gutter system to manufacturer's details and requirements as shown on the drawings.

Installer of fascia, soffit and gutter to be familiar and experienced with all applications.

Cut soffit panel to suit using hand shears or nibblers, then insert panel into the groove at the back of the fascia panel, and in succession, is clipped into the soffit brackets.  Check that the panel has been aligned to its resting position before it is clipped in.  Ensure that the panel is well supported while being lifted into place.  Once panel is clipped into place remove the strippable film and crimp the locking tabs on to the back of the soffit panel.  For the first panel there is also a locking tab at the fascia panel and soffit panel intersection which needs to be folded down after the panel has been clipped in.

Use a Ribon Extension Bracket for soffits greater than 645mm wide.

For flat soffits:

• Install wall bracket hangers at 300mm centres at the drop height from the support framing.
• Cut extension bracket to length, nose bracket into the back of the panel rib to gain the correct distance for the panel engagement.
• Fix extension bracket to the brackets with self-tapping screws.

For sloping soffits:

• Cut extension bracket to length, nose bracket into the back of the panel rib of the previous panel and screw fix the bracket into the side of the rafter at soffit pitch at 300mm centres.

Provide an 18mm gap at mitred external and internal panel intersections, and a 18mm gap at joints in panels greater than 8m long.  Ensure the joiners are inserted before the roof goes on to allow easy access to fit the top joiner.  Firstly, place a 14mm hard foam strip above the panel and in between the panel ribs to ensure that the panel will seat exactly on to the joiner once screwed together.

Cut both joiners to length, place the top joiner above the panels, then place the lower joiner under the panels and using pre-drilled holes, screw the two together so they lightly clamp on to the panels.

Refer to painting section(s) for protective coating system.

Ensure the work is complete with all components, accessories, finishing and trim properly installed so that the soffit cladding system is completely weathertight.

Replace all damaged or marked elements.

Leave work to the standard required for following procedures.

Remove debris, unused materials and elements from the site.

Project Exposure Zone B-C to NZS 3604, C 1-3 to ISO 9223.

Project Exposure Zone D to NZS 3604, C 4 to ISO 9223.

Project Exposure Zone E to NZBC E2/AS1, C 5 (C5I & C5M) to ISO 9223.