4239RS
RONDO SYSTEMS - SOFFITS
1
GENERAL

If you have pre-customised this work section using the "questions and answers" provided as part of the downloading process, it may be necessary to amend some clauses to suit the final project-specific version.

 

The section must still be checked and customised to suit the project being specified, by removing any other irrelevant details and adding project-specific details and selections.

 

This section relates to the supply and fixing of:

 

This section includes:

Modify or extend the above description to suit the project being specified.

Note - this section covers external applications only i.e. soffits.

 

The steel framing is Z275 galvanized and suitable for corrosion risk Zones C1 and C2 (AS/NZS 2312).  For corrosion risks above C2, additional protection to the steel framing is recommended: Either a barrier or applied coating (e.g. zinc-rich paints or Ameron type coating).

 

To enable the soffit manufacturer/supplier to specifically design the soffit system, ensure sufficient information is available in this specification and/or on the drawings (for instance soffit height etc.). Refer to AS/NZS 2785, Appendix B for a list of typical project information.

 

Rondo Building Services Pty Ltd offer an engineering design service, delivering project specific documentation prior to consent and tender. A detailed wind and seismic report as part of the consultant supplied information may be required to undertake a design.
If required a PS1 from an independent engineer can be provided for a fee, this process is facilitated by Rondo.  By contacting Rondo through the Masterspec work section support function, the design service can be coordinated with this specification section and other consultant documentation. Rondo project specific documentation can be attached within the specification Contract Appendix.

 

The Rondo project specific documentation provides a similar level of documentation to shop drawings.  Shop drawings can be provided if the design service is not required.
Fire rated soffits require specific design. Contact Rondo for further details.

1.1
RELATED WORK

Refer to ~ for ~.
Refer to painting section(s) for the protective coating required to meet the NZBC durability requirements.

Include cross references only to other work sections where they include directly related work.  These may include;
Refer to 4161 UNDERLAYS, FOIL AND DPC
Refer to 4224 TIMBER EXTERIOR TRIM
Refer to 4821 FLASHINGS

1.2
ABBREVIATIONS AND DEFINITIONS

Refer to the general section 1232 INTERPRETATION & DEFINITIONS for abbreviations and definitions used throughout the specification.

 

The following abbreviations apply specifically to this section:

AWCINZ

Association of Wall and Ceiling Industries of New Zealand Inc

Documents
1.3
DOCUMENTS

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

NZBC B1/VM1

Structure general

NZBC B2/AS1

Durability

NZBC C/AS1-AS2

Protection from Fire, Appendix C, 5.1

NZBC E2/AS1

External moisture

AS/NZS 1170.0

Structural design actions - General principles

AS/NZS 1170.1

Structural design actions - Permanent, imposed and other actions

AS/NZS 1170.2:2011

Structural design actions - Wind actions

NZS 1170.5

Structural design actions - Earthquake actions - New Zealand

AS 1397

Continuous hot-dip metallic coated steel sheet and strip - Coatings of zinc and zinc alloyed with aluminium and magnesium

AS/NZS 1604.1

Preservative-treated wood-based products - Part 1: Products and treatment

AS/NZS 2269.0

Plywood - structural - Specifications

NZS 2295

Pliable, permeable building underlays

AS/NZS 2785

Suspended Ceilings - Design & Installation

AS/NZS 2908.2

Cellulose-cement products - Flat sheet

NZS 3604

Timber-framed buildings

NZS 4219

Seismic performance of engineering systems in buildings

NZS 4541

Automatic fire sprinkler systems.

NASH Standard Part 2

Light Steel Framed Buildings

Delete from the DOCUMENTS clause any document not cited.  List any additional cited documents.

The following are related documents and if referred to in the work section need to be added to the list of DOCUMENTS.

NZBC B1/VM1

Structure

AS/NZS 2312.1

Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings

AS/NZS 4600:2005

Cold-formed steel structures

NZS 3603

Timber structures

BRANZ BU 563

Building on exposed sites

BRANZ BU 567

E2/AS1 Flashing Requirements

BRANZ BU 519

Fasteners selection

 

Note: AS/NZS 4600:2005 Amendment 1 is cited by NZBC, but AS/NZS 4600:2018 has not at the time of writing been cited by NZBC.  Consult with the BCA as to their requirements if you want to use the 2018 version as an Alternative Solution.

 

Note: AS/NZS 1170.2:2011 is cited in NZBC B1/VM1 Structure at the time of writing.  The new version AS/NZS 1170.2:2021 is not yet cited.  Amend the section by removing the year reference if using the 2021 version and amend the section accordingly                                                  .

1.4
MANUFACTURER/SUPPLIER DOCUMENTS

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

Rondo Tophat & Stud Soffit System design manual

Rondo Tophat & Stud Soffit System installation guide

Rondo KEY-LOCK® design manual
Rondo KEY-LOCK® installation guide
Rondo KEY-LOCK® online Seismic Wizard
Rondo PANTHER® access panel design manual
Rondo PANTHER® access panel installation guide
Certificate of Licence for New Zealand Made trademark - Licence No. 806965

List documents relating to this part of the work, i.e. technical product/system specifications, test reports, appraisals, certification, etc. Normally they will be referred to in the text by the abbreviated title.

 

Manufacturer/supplier contact details

Company:

Rondo Building Services Pty Ltd

Web:

www.rondo.co.nz

Email:

steve.hardy@rondo.co.nz

Telephone:

09 636 5110

It is important to ensure that all personnel on site have access to accurate, up to date technical information on the many products, materials and equipment used on a project.  In most cases individual products are not used in isolation, but form part of a building process. Also a particular manufacturer and/or supplier requirements for handling, storage, preparation, installation, finishing and protection of their product can vary from what might be considered the norm. Access to technical information can help overcome this potential problem.

Warranties - Rondo Soffit Framing
1.5
WARRANTY - MANUFACTURER/SUPPLIER

Provide a material manufacturer/supplier warranty:

10 years

For Rondo branded products against defects in materials under normal use.

15 years

In addition, to the above warranty, Rondo warrants that the Rondo KEY-LOCK® Suspended Systems will remain structurally sound.

 

  • Provide this warranty on the manufacturer/supplier standard form (if not available then use the standard form in the general section 1237WA WARRANTY AGREEMENT)
  • Commence the warranty from the date of practical completion of the contract works.

 

Refer to the general section 1237 WARRANTIES for additional requirements.

~ years to ~ years are the sort of warranty periods that can be expected depending on material selection and project conditions.  Check with the manufacturer/supplier for their specific periods.

Warranties - Soffit cladding
1.6
WARRANTY - MANUFACTURER/SUPPLIER

Provide a material manufacturer/supplier warranty:

~ years

For ~

 

  • Provide this warranty on the manufacturer/supplier standard form (if not available then use the standard form in the general section 1237WA WARRANTY AGREEMENT)
  • Commence the warranty from the date of practical completion of the contract works.

 

Refer to the general section 1237 WARRANTIES for additional requirements.

~ years to ~ years are the sort of warranty periods that can be expected depending on material selection and project conditions.  Check with the manufacturer/supplier for their specific periods.

1.7
WARRANTY - INSTALLER/APPLICATOR

Provide an installer/applicator warranty:

2 years

For workmanship

 

  • Provide this warranty on the installer/applicator standard form (if not available then use the standard form in the general section 1237WA WARRANTY AGREEMENT)
  • Commence the warranty from the date of practical completion of the contract works.

 

Refer to the general section 1237 WARRANTIES for additional requirements.

Modify or expand the clause to suit project or installer/applicator requirements, options include:

  • Modify the form to be used
  • Commence the warranty from the date of installation (check with the installer/applicator)
Requirements
1.8
QUALIFICATIONS GENERALLY

Refer to 1270 CONSTRUCTION for requirements relating to qualifications.
Installers are to be members of the AWCINZ. Provide evidence of experience, listing completed projects of similar size and complexity.

Modify clause to suit project requirements

1.9
NO SUBSTITUTIONS

Substitutions are not permitted to any of the specified systems, components and associated products listed in this section.

1.10
RONDO SPECIFIC DESIGN DOCUMENTS

Refer to SELECTIONS for project specific design documentation by Rondo Building Services Pty Ltd, generally consisting of:

  • Design calculations
  • Dimensioned plans/elevations of elements
  • Details of construction, connections and support systems
  • Dimensions of all typical elements
  • Jointing details and method of fixing between individual elements and between this installation and adjacent work
  • Provision for thermal and seismic movement
  • Bracing requirements, due to wind and seismic loads
  • A schedule of materials, finishes and componentry

Rondo Building Services Pty Ltd offer an engineering design service, delivering project specific documentation prior to consent and tender as an alternative to the Shop Drawing process.  A detailed wind and seismic report as part of the consultant supplied information may be required in order to undertake a design.

 

By contacting Rondo through the Masterspec work section support function, the design service can be coordinated with this specification section and other consultant documentation.  Rondo project specific documentation can be attached within the specification Contract Appendix.

1.11
SHOP DRAWINGS

Refer to the general section 1235 SHOP DRAWINGS for the requirements for submission and review and the provision of final shop drawings.

 

Provide shop drawings to show the general arrangement including, but not be limited to:

  • Design calculations.
  • Fully dimensioned elevations of all elements
  • Complete details of construction, connections and all support systems
  • Dimensions of all typical elements
  • Jointing details and method of fixing between individual elements and between this installation and adjacent work
  • Provision for thermal movement
  • Provision for seismic movement and movement under prevailing wind loads
  • Bracing requirements, due to wind and seismic loads (indicate any design and construction work by others, to meet these requirements)
  • Sequence of installation
  • Co-ordination requirements with other work
  • A full schedule of materials, finishes and componentry

The general section 1235 SHOP DRAWINGS describes the process of submission and review of shop drawings.  Use this clause to describe the specific requirements of what the required shop drawings are to include.

Rondo Building Services Pty Ltd offer an engineering design service, delivering project specific documentation prior to consent and tender as an alternative to the Shop Drawing process.

By contacting Rondo through the Masterspec work section support function, the design service can be coordinated with this specification section and other consultant documentation.  Rondo project specific documentation can be attached within the specification Contract Appendix.

Re-run the Q&A if required to obtain the Rondo design service clause content.  Delete this clause if using the Rondo design service.

Compliance information
1.12
INFORMATION REQUIRED FOR CODE COMPLIANCE

Provide the following compliance documentation:

  • Manufacturer / supplier warranty.
  • Internal Rondo engineered design - refer to SELECTIONS.
  • Producer Statement (PS1) - Design from supplier independent engineer.
  • Producer Statement (PS3) - Construction from the applicator / installer.
  • Producer Statement (PS4) - Construction Review from an acceptable suitably qualified person.
  • Other information required by the BCA in the Building Consent Approval documents.

Producer Statement - Design (PS1) required from consultants to be engaged by the Contractor. May involve a fee, check with supplier.

Producer Statement - Construction (PS3) required from installers as a condition of carrying out this work.

Producer Statement - Construction Review (PS4) required from consultants to be engaged by the Contractor.

A PS1 from an independent engineer can be provided for a fee.  Rondo are willing to facilitate this process

1.13
PRODUCER STATEMENT - DESIGN

Refer to SELECTIONS for an independent Producer Statement - Design (PS1).

A PS1 from an independent engineer can be provided for a fee.  Rondo are willing to facilitate this process.

Performance

This clause is setting a standard of performance for design to be met by the contractor.

Specifiers should therefore consider adding a means of confirming (say by testing or certification) that the performance criteria will be, or has been met.

Ensure correct information is supplied in 1220 PROJECT.

Use the following clause whether specifying by performance or not.

1.14
LOADING CODE REQUIREMENT

To AS/NZS 2785, comply with the requirements of: AS/NZS 1170.0, AS/NZS 1170.1, AS/NZS 1170.2, NZS 1170.5, NZBC B1/VM1, as appropriate.

Load combinations are considered in accordance with AS/NZS 1170.0
In some seismic areas the connection details may not be valid.  Refer to Rondo Building Services Pty Ltd for advice.

1.15
CERTIFICATION

Provide:

  • Certificates and other evidence that the system complies with the standards of performance specified.
  • Producer Statements.
1.16
ENVIRONMENTAL REQUIREMENTS

To NZBC B2/AS1, Durability, or NASH Standard Part Two 2019 (3. Durability).
Refer to SELECTIONS

The steel framing is Z275 galvanized and suitable for corrosion risk Zone C2 (AS/NZS 2312). For corrosion risks areas above C2, additional protection to the steel framing is recommended: Either a barrier or applied coating (zinc-rich paints or Ameron type coating).

1.17
FIRE RATING REQUIREMENT

Design the soffit system to NZBC C/AS1-AS2, Protection from Fire, Appendix C, 5.1.

Refer to SELECTIONS.

Performance - Wind (design by contractor)

This clause is setting a standard of performance for design to be met by the contractor.

Specifiers should therefore consider adding a means of confirming (say by testing or certification) that the performance criteria will be, or has been met.
Ensure correct information is supplied in 1220 PROJECT.

1.18
DESIGN PARAMETERS WIND - DESIGN BY CONTRACTOR

Design the installation to the wind pressure parameters of AS/NZS 1170.2.  Refer to general section 1220 PROJECT for general details.  Contact Rondo Building Services Pty Ltd for their internal engineering design service or to facilitate Producer Statement - Design (PS1).  Refer to SELECTIONS specific design performance requirements.

Obtain information from the project structural engineer.
Delete the clause if it does not apply and the contractor is not expected to design.

Rondo Professional Design Manual references AS/NZS 1170.2.

Performance - Seismic (design by contractor)

This clause is setting a standard of performance for design to be met by the contractor.

Specifiers should therefore consider adding a means of confirming (say by testing or certification) that the performance criteria will be, or has been met.

Ensure correct information is supplied in 1220 PROJECT.

1.19
SEISMIC - SPECIFIC DESIGN

Design the system and its anchorages/fixings to resist the earthquake loads of the seismic zone in accordance with NZS 1170.5.  Refer to general section 1220 PROJECT for general details.  Contact Rondo Building Services Pty Ltd for their internal engineering design service or to facilitate Producer Statement - Design (PS1).

Refer to SELECTIONS specific design performance requirements.

Obtain information from the project structural engineer.

Delete the clause if it does not apply and the contractor is not expected to design.

Rondo Professional Design Manual references NZS 1170.5.

Quality control and assurance
1.20
INSPECTIONS

~

Use this clause for parts of the work where;

Special arrangements are required for notification for inspections.
These inspections may include 'Hold Points' or 'Notification Points'.

Hold Point:

Work may not proceed until the work in question has been inspected.

Notification Point:

Work may proceed, but with the Contract Administrator being given sufficient notice of this so that they can arrange to observe the work in progress, or not to observe it, as the case may be.

or
the manufacturer/supplier is required to carry out inspections outside their normal activities and provide reports or other documents in support of the work carried out.
or
the Contractor is required to carry out or engage consultants to carry out inspections of parts of the work.  It will typically be expected that the person carrying out the inspections will be required to provide producer statements in support of the work carried out.

1.21
INFORMATION FOR OPERATION AND MAINTENANCE

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

Use this clause to list requirements of information that is required but which does not warrant a separate specialist operation and maintenance manual.  Amend the clause if hard copy documents are required.
NOTE - this clause applies to Soffit Linings only.

 

Provide this information prior to practical completion.

The general section1234 DOCUMENTATION  (or 1239 OPERATION & MAINTENANCE if required) describes the process of submission and review of operation and maintenance information.  Use this clause to describe the specific requirements, the required information and what it is to cover.

2
PRODUCTS
Rondo Tophat and Stud Soffit System
2.1
RONDO TOPHAT AND STUD SOFFIT SYSTEM

External stud soffit and tophat system to Specific Design
Brackets, wall track, stud dropper, diagonal braces, horizontal stud joists, and top hat sections, all hot-dipped (Z275) galvanized steel to AS 1397, all manufactured from G2 BlueScope base metal.
Provide diagonal bracing for lateral stability where required.  Perimeter trim, expansion joints and seismic joints etc. to AS/NZS 2785.
Refer to SELECTIONS.

Curved soffits, custom profiles and radii are also available. Contact Rondo.

This support system is limited to 1500mm framing depth below the structural support.

Direct-fix Soffit System
2.2
RONDO KEY-LOCK® DIRECT-FIX SOFFIT SYSTEM

KEY-LOCK® direct-fix system designed to AS/NZS 2785, and Rondo KEY-LOCK® design manual.  Fixing brackets, furring channels, battens, and snap in sections all hot-dipped (Z275) galvanized steel to AS 1397, manufactured from G2 BlueScope base metal.
Provide diagonal bracing for lateral stability where required.  Perimeter trim, expansion joints and seismic joints etc. to AS/NZS 2785.
Refer to SELECTIONS.

For soffits with less than 200mm suspension depth, a direct-fix system should be installed.
A direct-fix ceiling system has a soffit near the structural soffit, and generally is directly fixed to the structural soffit by rigid connections/brackets.

Rondo KEY-LOCK® offers a system of furring channels and battens, allowing for a range of spans for fixings or cleats.  Refer to Rondo for design assistance and advice.

Suspended soffit system
2.3
RONDO KEY-LOCK® SUSPENDED SOFFIT SYSTEM

KEY-LOCK® suspended soffit system designed to AS/NZS 2785, and Rondo KEY-LOCK® design manual.  Primary (Top Cross Rail), secondary components (Furring Channel), furring channels, battens, and snap in sections all hot-dipped (Z275) galvanized steel to AS 1397, manufactured from G2 BlueScope base metal.  Refer to SELECTIONS.

For soffits with more than 200mm suspension depth, a fully suspended system must be installed.
Rondo KEY-LOCK® offers a system of furring channels, battens and clips, allowing for a range of spans and suspension point spacings. The systems can be used in both fire rated and non fire rated suspended soffits, eaves, and verges. Soffit shapes can be flush, curved, raked or cantilevered.

Refer to Rondo for design assistance and advice.

2.4
SEISMIC RESTRAINT

To AS/NZS 2785, 4.3.3 Seismic Restraint Types and/or suitable proprietary back braces for soffit systems.  Refer to SELECTIONS.

Ensure that hybrid systems of combined suspended and direct fixed systems are carefully considered for movement.

Components

Refer to Rondo for design assistance and advice.

2.5
RONDO SUSPENSION RODS, BRACKET CLIPS, AND ANCHORS

Rondo components to AS 1397.  Steel grade and zinc coating class G2 Z275 to AS 1397.

2.6
PRIMARY SECTIONS

Rondo 25mm or 38mm top cross rail to AS 1397.  Steel grade and zinc coating class G2 Z275 to AS 1397.

G2 refers to a steel grade designation under formability grades, Z275 refers to a zinc coating class with a coating mass of 275g/m².

2.7
FURRING BATTEN SECTIONS

Rondo furring/batten sections to AS 1397.  Steel grade and zinc coating class G2 Z275 to AS 1397.  Refer to SELECTIONS

G2 refers to a steel grade designation under formability grades, Z275 refers to a zinc coating class with a coating mass of 275g/m².

2.8
SECTION JOINERS

Hot-dip galvanized steel elements manufactured from steel strip to AS 1397.

2.9
RONDO WALL TRIM

Rondo wall trim sections to AS 1397.  Steel grade and zinc coating class G2 Z275 to AS 1397.

G2 refers to a steel grade designation under formability grades, Z275 refers to a zinc coating class with a coating mass of 275g/m².

2.10
FASTENERS - DIRECT-FIX

8g-16 x 25mm (minimum) self-drilling wafer head screws for fixing to timbers detailed in Rondo Professional Design Manual and to Rondo Building Services Pty Ltd requirements.

2.11
FASTENERS - SUSPENSION SYSTEM

Pop rivets or 8g-16 x 12mm (minimum) self-drilling wafer head screws to join furring channels and C channels as detailed in Rondo Professional Design Manual and to Rondo Building Services Pty Ltd requirements.

Accessories

Refer to Rondo for design assistance and advice.

2.12
ACCESS PANEL

Panther WetLine™ board insert, with polymer frame surround.

Refer to SELECTIONS

Setbead option can be offered only if the void is moisture free.

Note - this access panel is not Fire Rated

Fibre cement soffit cladding
2.13
FIBRE CEMENT SOFFIT CLADDING

Fibre cement soffit cladding, manufactured from treated cellulose fibre, Portland cement, sand and water, cured by high pressure autoclaving and manufactured to AS/NZS 2908.2.

Refer to SELECTIONS.

Refer to Manufacturer / supplier documents for further details.

2.14
FIBRE CEMENT SOFFIT CLADDING - FLUSH JOINTED

Fibre cement soffit cladding with recessed edges for flush jointing.  Manufactured from treated cellulose fibre, Portland cement, sand and water, cured by high pressure autoclaving and manufactured to AS/NZS 2908.2.

Refer to SELECTIONS.

Refer to Manufacturer / supplier documents for further details.

Consider use of flush jointed fibre cement soffit cladding with caution in relation to skillion roofs.  High temperature levels within skillion roofs can cause cracking in flush stopped joints.

2.15
FIBRE CEMENT SOFFIT CLADDING - PRE-FINISHED

Fibre cement soffit cladding, manufactured from treated cellulose fibre, Portland cement, sand and water, cured by high pressure autoclaving and manufactured to AS/NZS 2908.2.  Pre-finished to exposed face.

Refer to SELECTIONS

Pre-finished soffits can distort due to surface tension if adequate edge support is not provided.
Refer to Manufacturer / supplier documents for further details.

2.16
FIBRE CEMENT SOFFIT CLADDING - IMITATION TONGUE AND GROOVE

Fibre cement soffit cladding with grooved face to imitate TG&V timber appearance.  Manufactured from treated cellulose fibre, Portland cement, sand and water, cured by high pressure autoclaving and manufactured to AS/NZS 2908.2.

Refer to SELECTIONS.

Refer to Manufacturer / supplier documents for further details.

Fibre cement soffit cladding - Components
2.17
SOFFIT JOINTERS

Extruded uPVC jointer.

Expand clause if required to cover manufacturer full range.

2.18
CAPPING MOULDS

Extruded uPVC capping mould.

Expand clause if required to cover manufacturer full range.

Flush finished fibre cement soffit cladding - Components
2.19
CORNER ANGLE

Extruded uPVC jointer corner angle.

2.20
CONTROL JOINT

Extruded uPVC jointer control joint.

2.21
JOINT REINFORCING TAPE

Perforated paper tape as required by Manufacturer / supplier documents.

2.22
JOINTING COMPOUND

Proprietary jointing compounds as required by Manufacturer / supplier documents.

Refer to SELECTIONS.

Fibre cement - Accessories
2.23
FLASHING TAPES

Single sided medium density closed cell PVC foam tape, with pressure sensitive acrylic adhesive on one side of tape. Tape thickness and width to manufacturer technical literature.

2.24
SEALANT

Facade sealant or similar.  Refer to the sheet manufacturer technical literature for selection and use requirements.

2.25
SEALER

For jointed systems, seal all sheet edges prior to fixing.

Flush jointed fibre cement soffit cladding - Accessories
2.26
ACRYLIC SEALER

Acrylic sealer to site cut and site recessed sheet edges. Refer to SELECTIONS.

2.27
WATERPROOFING ADMIXTURE

Waterproofing admixture to control moisture suction prior to stopping, as required by Manufacturer / supplier documents.

Refer to SELECTIONS.

Plywood soffit cladding
2.28
PLYWOOD SOFFIT CLADDING

Rotary cut, radiata pine veneer ply sheet to AS/NZS 2269.0.  Treated H3 to AS/NZS 1604.1.

Refer to SELECTIONS.

Refer to Manufacturer / supplier documents for further details.
7mm minimum thickness required to comply with E2/AS1.  Refer to Manufacturer / supplier documents for their requirements in relation to minimum thickness, which may be in excess of E2/AS1 requirements.

AS/NZS 1604.1, Table 1.5.2, Note 4, also references to NZS 3602 for details.

2.29
PLYWOOD SOFFIT CLADDING - GROOVED

Proprietary plywood rotary cut, radiata pine veneer ply sheet to AS/NZS 2269.0.  Treated H3.1 LOSP to AS/NZS 1604.1.  Provided with parallel "V" grooves running the length of the sheet, to provide an imitation tongue and groove appearance.  Plywood manufactured for use as an external soffit cladding.

Refer to SELECTIONS.

Refer to Manufacturer / supplier documents for further details including minimum thickness requirements and pre-coating options. Consult with manufacturer for suitability if the proposed soffit or eaves is a reverse slope.

AS/NZS 1604.1, Table 1.5.2, Note 4, also references to NZS 3602 for details.

2.30
PLYWOOD SOFFIT CLADDING - APPEARANCE GRADE

Rotary cut, radiata pine veneer ply sheet to AS/NZS 2269.0.  Treated H3.1 LOSP to AS/NZS 1604.1.

Refer to SELECTIONS.

Refer to Manufacturer / supplier documents for further details. High visual face grades BB or BD.  If a high visual face grade is not required, consider lower visual grades such as CD and DD.

AS/NZS 1604.1, Table 1.5.2, Note 4, also references to NZS 3602 for details.

Plywood soffit cladding fastener
2.31
SCREWS - PLYWOOD SOFFIT LININGS

Self-drilling class to suit member, connection method, and location to NASH Standard Part 2.  Screw corrosion protection to NASH Standard Part 2, clause 3.4 Screws.

Depending on Exposure Zone, recommend Class 5 screws in high exposure or stainless steel. For exposure to high levels of copper in the plywood treatment, stainless steel screws are recommended.

2.32
SCREWS - STAINLESS STEEL

Refer to the manufacturer requirements for size and use: Galvanized countersunk or stainless steel to NZS 3604, Table 4.1.

Consider selection between stainless steel and silicone bronze in relation to visual appearance (alter clause to suit).  Coloured stainless steel screw options may be available, refer to suppliers.

Plywood soffit cladding edge treatment
2.33
PLYWOOD CUT EDGE TREATMENT

A solution of 12.5% copper naphthenate in white spirits, or mineral turpentine.

Ensure it is fully dry before fixing soffit sheet to the metal framing

Soffit cladding fasteners
2.34
SCREWS - STAINLESS STEEL / COATED STEEL

Refer to SELECTIONS for size and use: Coated steel or stainless steel to NZS 3604, Table 4.1.

Consider selection between stainless steel and silicone bronze in relation to visual appearance (alter clause to suit).  Coloured stainless steel screw options may be available, refer to suppliers.  Refer to soffit lining Manufacturer/Supplier for recommended fixings to resist corrosion risk by the timber preservative.

Soffit cladding - other
2.35
SOFFIT CLADDING - OTHER

~ . Refer to SELECTIONS

Complete title and details for soffit cladding types other than fibre cement or timber.

2.36
SOFFIT CLADDING FIXINGS - OTHER

~ . Refer to SELECTIONS

Complete title and details for soffit cladding types other than fibre cement or timber.

Soffit cladding - accessories
2.37
BUILDING UNDERLAYS

Breather type, waterproof to NZS 2295.  Refer to 4161 UNDERLAYS, FOIL AND DPC.

The use of underlay with steel frames requires consideration of many factors, the type of construction and the type of cladding. Generally, follow the same basic rules as for timber; non- absorbent claddings require an absorbent underlay, while absorbent claddings do not.

Flashing
2.38
SOFFIT CLADDING/WALL CLADDING JUNCTION FLASHING

Flashing as detailed with minimum 50mm return behind soffit cladding and 35mm cover to wall cladding, complete with hook and kick-out.

Refer to SELECTIONS for flashing material.

For flashings required at soffit cladding/wall cladding junction of a reverse slope soffit/eaves, refer to E2/AS1 figure 8A.

3
EXECUTION
Conditions
3.1
DELIVERY, STORAGE & HANDLING OF PRODUCTS

Refer to 1270 CONSTRUCTION for requirements relating to delivery, storage and handling of products.

Use this standard generic clause and if appropriate add additional special requirements.

3.2
ROUTINE MATTERS

Refer to 1250 TEMPORARY WORKS & SERVICES for protection requirements.
Refer to 1270 CONSTRUCTION for requirements relating to defective or damaged work, removal of protection and cleaning.

Use this standard generic clause and if appropriate add additional special requirements.

3.3
SUBSTRATE

Ensure substrate is plumb, level and in true alignment.  Do not start erection if the substrate will not allow work of the required standard.  Complete any remedial work found necessary before framing erection.

3.4
CO-ORDINATE SERVICES

Co-ordinate and co-operate with electrical and mechanical work to avoid conflict between suspension members and luminaires, diffusers, pipework and ducting. Confirm the provision of extra hangers and fixings.

Ensure co-operation with work in and above the soffit, including the marking of specific major access points to above-soffit services. Colour coded markings to follow the standards laid down by mechanical and electrical services.
Services and other attachments, attached to or supported by the soffit grid system to AS/NZS 2785, ensure that:

  • items over 7.5kg and items under 7.5kg but falling greater than 3m, require a tether to AS/NZS 2785, anchored to structure.
  • items attached to the soffit grid must be under 10kg mass, items over 10kg cannot be attached to the grid and must be independently supported.
  • unless designed otherwise, the soffit systems total load of services and other attachments must not exceed 3kg/m².
  • light fittings installed to AS/NZS 2785 and NZS 4219.
  • soffit system clearances to structure and services etc. that are not attached to the soffit system to NZS 4219, and/or NZS 4541 for sprinklers.

Confirm loadings with manufacturer.
Note - Although items under 10kg mass are allowed, it is recommended that 7.5kg should be considered as a maximum for attaching to the grid under ULS conditions.
Direct fixed systems may be able to vary loads slightly from the above depending on fixing centres and lining capacity, discuss with manufacturer.  Also with direct fixed systems, subject to design, small lightweight light fittings may be fixed to the lining (for recessed) or lining back support (for pendants).

3.5
SITE CONDITIONS

To AS/NZS 2785: Appendix C2, Site Conditions and time of installation; Appendix C4, Inspection.

Installation
3.6
STANDARDS AND TOLERANCES

Refer to the general section 1270 CONSTRUCTION for general requirements.

Amend this clause to describe specific standards and tolerances to be achieved in carrying out this part of the work.  Although such tolerances are typically included in standards (NZS, AS/NZS etc) in certain circumstances it is worth restating these in this clause.

3.7
INSTALLATION - GENERAL

Installation to Rondo Professional Design Manual and Rondo Building Services Pty Ltd requirements.

Fix, erect and fit to finish rigid, plumb, square and true to line and face.

3.8
INSTALLATION - SPECIFIC

Refer to SELECTIONS for Rondo Building Services Pty Ltd project specific design documentation.

3.9
SETTING OUT

Set out the framing work true to line and square before starting erection.

3.10
ISOLATE

Isolate dissimilar metals with neoprene sheeting, or tape.

Installation - Rondo Tophat and Stud Soffit System
3.11
RONDO TOPHAT AND STUD SOFFIT SYSTEM

Installation to AS/NZS 2785, and Rondo Specific Design.  Fix, erect and fit to finish rigid, plumb, square and true to line and face.  Install all movement joints required.
Where components require cutting on site, use metal snips, fine-toothed band or hack saws
If required, allow for notch grid members at the junction with the perimeter trim to make sure the soffit lining lies flat on the perimeter trim.

 

Allowance for support members:

  • To enable the installation of services, including ductwork and light fittings.
  • To provide bridging and clearances around services, including ductwork, and light fittings, to prevent distortion, overloading or excessive vertical deflection.
  • To enable access for maintenance of services.
  • To enable sufficient support of services equipment, and maintain clearances between services and soffit lining.
  • Bracing is not to be fixed closer than 150mm to building services.

 

Install soffit system seismic restraints and bracing as required to prevent lateral movement and resist the imposed horizontal seismic force, and wind loadings, to AS/NZS 2785.

If soffit systems abut glazing, the horizontal seismic forces generated by the soffit can damage the glazing.

If a large area of soffit is terminated at a fascia, the horizontal seismic forces generated by the soffit can cause separation between the soffit and fascia if not properly designed.

If the soffit is terminated at an exterior wall, design the wall for the seismic force generated by the soffit.

Installation - Rondo KEY-LOCK® direct-fix soffit system
3.12
RONDO KEY-LOCK® DIRECT-FIX SOFFIT SYSTEM

Installation to AS/NZS 2785, and Rondo KEY-LOCK® installation guide.
Fix, erect and fit to finish rigid, plumb, square and true to line and face.  Adjust direct-fix clips/brackets, using a laser level, until they are all level.  Install all movement joints required.  Where components require cutting on site, use metal snips, fine-toothed band or hack saws.

 

Allowance for support members:

  • To enable the installation of services, including ductwork and light fittings.
  • To provide bridging and clearances around services, including ductwork, and light fittings, to prevent distortion, overloading or excessive vertical deflection.
  • To enable access for maintenance of services.
  • To enable sufficient support of services equipment, and maintain clearances between services and soffit lining.
  • If bracing is required, ensure it is fixed a minimum 150mm from building services.

 

Allowance for a soffit system where failure of any one fixing point does not cause a progressive failure of the soffit.

 

If required, allow for notch grid members at the junction with the perimeter trim to make sure the soffit lining lies flat on the perimeter trim. Do not attach fixing brackets to the lip or flange of purlins.

 

Install soffit system seismic restraints and bracing as required to prevent lateral movement and resist the imposed horizontal seismic force, to AS/NZS 2785.

If soffit systems abut glazing, the horizontal seismic forces generated by the soffit can damage the glazing.

If a large area of soffit is terminated at a fascia, the horizontal seismic forces generated by the soffit can cause separation between the soffit and fascia if not properly designed.

If the soffit is terminated at an exterior wall, design the wall for the seismic force generated by the soffit.

Modify clause to suit project requirements.

Installation - Rondo KEY-LOCK® suspended system
3.13
RONDO KEY-LOCK® SUSPENDED SOFFIT SYSTEM

Installation to AS/NZS 2785, and Rondo KEY-LOCK® installation guide.
Fix, erect and fit to finish rigid, plumb, square and true to line and face.  Adjust suspension systems and clips, using a laser level, until they are all level.  Install all movement joints required.  Where components require cutting on site, use metal snips, fine-toothed band or hack saws.

 

Allowance for support members:

  • To enable the installation of services, including ductwork and light fittings.
  • To provide bridging and clearances around services, including ductwork, and light fittings, to prevent distortion, overloading or excessive vertical deflection.
  • To enable access for maintenance of services.
  • To enable sufficient support of services equipment, and maintain clearances between services and soffit lining.
  • Bracing is not to be fixed closer than 150mm to building services.

 

Allowance for a soffit system where failure of any one suspension point does not cause a progressive failure of the soffit.

Allowance for height adjustment with a length adjustment device at each suspension point, permitting length variation of at least 50mm.

 

If required, allow for notch grid members at the junction with the perimeter trim to make sure the soffit lining lies flat on the perimeter trim. Do not attach the suspension system to the lip or flange of purlins.
Services support to conform to the following:

  • If the service has not been designed to accept the soffit load, do not fix suspension members to services (e.g. ductwork).
  • If services obstruct the soffit supports, provide bridging and suspension on each side of the services.

 

Install soffit system seismic restraints and bracing, where required, to prevent lateral movement and resist the imposed horizontal seismic force, and wind loads, to AS/NZS 2785.

If soffit systems abut glazing, the horizontal seismic forces generated by the soffit can damage the glazing.

If a large area of soffit is terminated at a fascia, the horizontal seismic forces generated by the soffit can cause separation between the soffit and fascia if not properly designed.

If the soffit is terminated at an exterior wall, design the wall for the seismic force generated by the soffit.

Installation generally - soffit cladding
3.14
PENETRATIONS

To AS/NZS 2785 and NZS 4219 generally, with sprinkler systems to NZS 4219 and/or NZS 4541.
Accommodate recessed light fittings, and services that are fixed to or pass through the soffit system.  Provide independent support for these as necessary.

Modify clause to suit project requirements.

3.15
BUILDING UNDERLAYS

Install breather type, waterproof underlays to manufacturer recommendations.
Refer to 4161 UNDERLAYS, FOIL AND DPC.

The use of underlay with steel frames requires consideration of many factors, the type of construction and the type of cladding. Generally, follow the same basic rules as for timber; non- absorbent claddings require an absorbent underlay, while absorbent claddings do not.

3.16
LINING

Fix and finish soffit linings to sheet manufacturer and Rondo Building Services Pty Ltd requirements.  Install services before lining.  Stagger sheet joins.
Refer to SELECTIONS for Rondo Building Services Pty Ltd project specific design documentation.

Delete when cross referencing to other sections, incorporate requirements in the separate section.  Modify this clause to suit.

3.17
ACCESSIBILITY

Provide access to the soffit system and the in-soffit and above-soffit services so that maintenance and removal of any part can be carried out without damage to the soffit system or panels.

As full access in all areas is clearly impractical, any special requirements for clear access will need to be defined; either by description here, or on the drawings.

3.18
ACCESS PANEL

Install to Rondo Panther installation requirements.

3.19
PENETRATIONS

Form small holes to accommodate penetrations through the soffit as per the method detailed in the sheet manufacturer technical literature.

Expand on this clause to suit project requirements.

3.20
SHEET LAYOUT

All sheet edges must be supported by framing and/or rebates in fascia and barge boards.

Alter clause if required to suit manufacturer requirements for wider soffits where framed support to all sheet edges is required.
Expand this clause as required to describe layout pattern/configuration required.
Refer to manufacturer details for parameters where the use of jointers will allow sheet joints to be positioned offset from framing support.

Installation - Fibre cement soffit cladding

Note - Contact Rondo if considering use of adhesives for fixing the soffit lining, as some adhesives can corrode the metal framing.

3.21
SEAL FIBRE CEMENT SHEET EDGES

Seal site cut sheet edges prior to installation.  Seal sheet edges around penetrations.

Refer to the fibre cement sheet manufacturer technical literature for requirements regarding sealing sheet edges and surfaces that will be concealed.

3.22
INSTALL SOFFIT CLADDING - JOINTERS AND CAPPING MOULDS

Cut sheets dry using score and snap method, hand guillotine or fibre cement shears. If these methods are not feasible, use an alternative manufacturer approved method. Ensure all edges and joints are fully supported.  Insert uPVC jointers and capping moulds to manufacturer requirements. Fix sheets complete with jointers and capping moulds.  Refer to manufacturer installation manual and SELECTIONS.

Refer to manufacturer details for parameters where the use of jointers will allow sheet joints to be positioned offset from framing support.

3.23
INSTALL SOFFIT CLADDING - EXPRESSED JOINTS

Cut sheets dry using score and snap method or hand guillotine.  Ensure all edges and joints are fully supported.  Install inseal sealing strip to framing at expressed joint locations.  Fix sheets complete with required gap to form expressed joint detail.  Refer to manufacturer installation manual and SELECTIONS.

Expressed joints require wider framing members at expressed joint locations to allow for sheet fixing.

3.24
INSTALL FLUSH FINISHED SOFFIT CLADDING

Cut sheets dry using score and snap method, hand guillotine or fibre cement shears. If these methods are not feasible, use an alternative manufacturer approved method.  Seal site cut and site recessed sheet edges with acrylic sealer.  Ensure all edges and joints are fully supported.  Fit expansion/control joints as detailed and as required by fibre cement sheet manufacturer requirements.  Flush joints with proprietary Base Coat, paper reinforcing tape and proprietary top coat to required flush finish.  Refer to manufacturer installation manual and SELECTIONS.

3.25
INSTALL PRE-FINISHED FIBRE CEMENT SOFFIT CLADDING

Cut sheets dry using score and snap method, hand guillotine or fibre cement shears. If these methods are not feasible, use an alternative manufacturer approved method.  Ensure all edges and joints are fully supported.  Install as per the pre-finished fibre cement manufacturer requirements with proprietary fixings, and mechanical fasteners as required.

3.26
INSTALL IMITATION TONGUE AND GROOVE FIBRE CEMENT SOFFIT CLADDING

Cut sheets dry using score and snap method, hand guillotine or fibre cement shears. If these methods are not feasible, use an alternative manufacturer approved method Ensure all edges and joints are fully supported.  Butt joint short ends of cladding (cut square and form chamfer to match) and align to provide continuation of grooved profile line.  Install as per the pre-finished fibre cement manufacturer requirements and with the fixing method as nominated in SELECTIONS.

3.27
FIBRE CEMENT CLADDING CONTROL JOINT

Install control joint to fibre cement sheet manufacturer requirements and type as nominated in SELECTIONS.

Refer to manufacturer details and requirements concerning control joints, which vary depending on product type selected.

3.28
FIBRE CEMENT CLADDING FASTENER - SIZE AND LAYOUT

Fix sheets to framing using fixings and fixing methods as nominated in SELECTIONS.  Fix to manufacturer requirements.

3.29
SEALANTS - FIBRE CEMENT

Application and use of sealants to manufacturer instructions.  Check with sealant manufacturer prior to coating over sealants.

Note - Some sealant products cannot be overcoated with paint.

3.30
PAINTING - FIBRE CEMENT

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

Painting of fibre cement sheets is required in order to meet the durability requirements of the NZBC and product warranties.  Sheets must be dry and free from dirt before painting.  Refer to Manufacturer / supplier documents in relation to maximum exposure time allowed prior to painting

Installation - Plywood soffit cladding

Note - If proposing to use adhesives for fixing the soffit lining, contact Rondo as some adhesives can corrode the metal framing.

3.31
EXECUTION

Execution to include those methods, practices and processes contained in the unit standards for the National Certificate in Carpentry and the National Certificate in Joinery (cabinetry, exterior joinery, stairs).

3.32
PLYWOOD EDGE TREATMENT AND SEALING

Treat cut edges of plywood with edge treatment solution, primer or sealer, to suit the surface finish being used, before fixing to soffit framing.

3.33
FIXING PLYWOOD SOFFIT CLADDINGS

Fit and fix to E2/AS1, 9.8 Plywood sheet and the plywood manufacturer requirements with sheets and trim in square, true alignment and plane. Allow a 2-3 mm expansion gap between square edge sheets, for sheet expansion.  Fully support all edges and joints.  Install when moisture content is 17% or less.

Carefully read the plywood manufacturer technical literature and modify this clause to suit the particular installation.
Refer to the plywood manufacturer technical literature for requirements regarding edge support or lack of it if tongue and groove-edged sheets are used.

3.34
GROOVED PLYWOOD SOFFIT FIXINGS

Fit and fix to E2/AS1, 9.8 Plywood sheet and the plywood manufacturer requirements with sheets and trim in square, true alignment and plane. Ensure alignment of grooves between adjacent sheets.  Install when moisture content is 17% or less.

Carefully read the plywood manufacturer technical literature and modify this clause to suit the particular installation.

Installation - soffit cladding (other)

Modify clause to suit soffit cladding type.

3.35
EXECUTION

Execution to include those methods, practices and processes contained in the unit standards for the National Certificate in Carpentry and the National Certificate in Joinery (cabinetry, exterior joinery, stairs).

Modify clause to suit soffit cladding type

Install timber profiles
3.36
EXECUTION

To NZS 3604, except as varied in this specification.  Execution to include those methods, practices and processes contained in the unit standards for the National Certificate in Carpentry and the National Certificate in Joinery (cabinetry, exterior joinery, stairs).

3.37
TIMBER TRIM

Using full lengths, scribe internal joints and mitre external and running joints.  Fully support all joints and fix securely and true to line and face, screw fix.  For paint finish prime joint edges before fixing, otherwise seal them without runs onto any exposed face.

This general clause covers most external trim applications.  However in some circumstances, more detail will be needed of the various different types of trim; battens, covers, etc.

Completion
3.38
COMPLETION MATTERS

Refer to 1270 CONSTRUCTION for completion requirements and if required commissioning requirements.

Use this standard generic clause and if appropriate add additional special requirements.

4
SELECTIONS

For further details on selections go to www.rondo.co.nz
Substitutions are not permitted.

Select the options to suit the project and delete options not specified.

Performance

Use these clauses if specifying by performance.

4.1
ENVIRONMENTAL REQUIREMENTS

To NZBC B2/AS1, Durability, or NASH Standard Part Two 2019 (3. Durability).

Corrosion Risk Zone:

~

Additional protection to Z275 galvanized steel framing:

~

Options:

Corrosion Risk Zone

State the Zone and the Standard.

AS/NZS 2312(2014) is most common, and similar to ISO 9223.

Alternatively, the specifier may reference NZBC E2/AS1 or NZS 3604

Additional protection to Z275 galvanized steel framing

- State NIL for corrosion risk Zones C1 and C2 (AS/NZS 2312);

- Above Zone C2 (AS/NZS 2312), additional protection to Z275 galvanized steel framing is recommended. e.g. Zinc-rich paint or Ameron type coating. Refer to Resene / PPG Ameron for expert advice.  Note that paint coating option must cover all surfaces of the framing including cut or scratched components.

4.2
FIRE RATING REQUIREMENT

FRR (minimum)

Soffit System

Location

~/~/~

~

~

Performance - Wind (design by contractor)
4.3
DESIGN PARAMETERS WIND - DESIGN BY CONTRACTOR

Wind design and performance criteria to AS/NZS 1170.2 as follows:

 

Parameter

Value

Design wind speed (Vdes.Ø)

~ m/s

Terrain Category (Mz,cat)

~

Shield Factor (Ms)

~

Topographic multiplier (Mt)

~

Hill-shape multiplier (Mh)

~

Lee multiplier (Mlee)

~

Internal pressure coefficient (Cp,i)

~

Fill in project values, obtain information from the project structural engineer.

These values come are critical to allow the Contractor to design the ceiling accurately.

Usually design for wind is only required if there are opening external windows/doors or other sources of wind pressure differential (including some roof spaces).

Ensure that all other generall information is available in this specification or on the drawings (for instance ceiling height etc.). Refer to AS/NZS 2785, Appendix B for further information required.

Delete the clause if it does not apply and the contractor is not expected to design.

Performance - Seismic (design by contractor)
4.4
DESIGN PARAMETERS SEISMIC - DESIGN BY CONTRACTOR

Seismic design and performance criteria to NZS 1170.5 as follows:

 

Parameter

Value

Building Importance Level

~

Design Working Life

~ years

Site Sub-soil Class

~

Near Fault Factor N(T,D)

~

Part Classification Category (P1-P7)

~

Interstorey Drift - ULS

~ mm

Interstorey Drift - SLS

~ mm

Fill in project values, obtain information from the project structural engineer.  These values are critical to allow the Contractor to design the ceiling accurately.  Ensure that all other general information is available in this specification or on the drawings (for instance ceiling height etc.). Refer to AS/NZS 2785, Appendix B for further information required.

Delete the clause if it does not apply and the contractor is not expected to design.

Design documentation
4.5
RONDO SPECIFIC DESIGN

Document:

~

Submitted:

~

Available:

~

Document:

Identify Rondo specific design documents

Submitted:

Building consent, tender (or both)

Available:

Specification Contract Appendix, or describe alternative.

4.6
PRODUCER STATEMENT - DESIGN

PS1:

~

Available:

~

A PS1 from an independent engineer can be provided for a fee, this process is facilitated by Rondo.

PS1:

Identify the producer statement - design (PS1)

Available:

Specification Contract Appendix, or describe alternative.

Rondo Tophat and Stud Soffit System
4.7
RONDO TOPHAT AND STUD SOFFIT SYSTEM

Location:

~

Type/Brand:

RONDO TOPHAT AND STUD SOFFIT SYSTEM

Curved radius:

~

Fascia depth (1500mm maximum):

~

Primary fascia framing:

~

Diagonal bracing:

~

Horizontal stud joist:

~

Secondary framing:

~

Options:

Curved radius:

Nominate for curved soffit, Delete if not required.

Primary fascia  framing:

Rondo #680 92 x 32 x 1.15 BMT wall track to structural slab.

 

Rondo #681 92 x 1.15 BMT lipped stud dropper at max 600mm c/c

 

Rondo #680 92 x 32 x 1.15 BMT wall track to base of stud dropper.

 

Rondo #680 92 x 32 x 1.15 BMT wall track to perimeter of horizontal joist

 

Rondo #681 92 x 1.15 BMT horizontal stud joist at nominated joist c/c.

Diagonal bracing:

Rondo #201 bracket to structural floor slab

 

Rondo #681 92 x 1.15 BMT Lipped Stud brace fixed at nominated brace c/c.

Secondary framing:

Rondo #535 top hat sections.

For negative detail, use the #155 batten.  Using the #155 batten a negative detail up to 10mm wide can be possible [subject to soffit lining type].
Delete material not applicable, add extra rows if necessary.

Rondo KEY-LOCK® System - Direct-Fix
4.8
RONDO KEY-LOCK® DIRECT FIX SOFFIT SYSTEM

Location:

~

Type/Brand:

KEY-LOCK® Direct-Fix Ceiling System

Curved radius:

~

Furring Channels (FC):

~

Perimeter Trims:

~

Fasteners direct fix:

~

Options:

Curved radius:

Nominate for curved soffit, Delete if not required.

Furring channels (FC):

#129 (28mm deep)

 

#155 (28mm deep) - allows negative board joint detail.

Perimeter Trims:

#141 Seismic Heavy Duty Channel to suit 129 (28mm)

 

#140 Channel to suit 129 (28mm)

 

# P51 Shadowline Set Bead for 10mm board

 

# P52 Shadowline Set Bead for 13mm board

 

# P53 Shadowline Set Bead for 16mm board

 

Note: a Shadowline detail is more likely to provide a better long term solution against cracking than square stopping.

Fasteners direct fix:

To suit substrate and component selection, Contact Rondo Building Services Pty Ltd

Rondo KEY-LOCK® System - Suspended
4.9
RONDO KEY-LOCK® SUSPENDED SOFFIT SYSTEM

Location:

~

Additional corrosion protection:

~

Type/Brand:

KEY-LOCK® Suspended Ceiling System

Curved radius:

~

Top Cross Rails (TRC):

~

Furring Channels (FC):

~ at  ~ mm span maximum

TCR to FC Joiners:

~

Perimeter Trims:

~

Suspension Brackets & Clips:

~

Options:

Curved radius:

Nominate for curved soffit, Delete if not required.

Top Cross Rails (TRC):

#127 (25mm deep), #128 (38mm deep)

Furring Channels (FC):

#129 (28mm deep),

 

#155 (28mm deep) - for negative joint detail.

TCR to FC Joiners:

#159 (for 127 & 128 to 155)

Perimeter Trims:

#141 Seismic Heavy Duty Channel to suit 129 (28mm)

 

#140 Channel to suit 129 (28mm)

 

#P51 Shadowline Set Bead for 10mm board

 

#P52 Shadowline Set Bead for 13mm board

 

#P53 Shadowline Set Bead for 16mm board

 

Note: a Shadowline detail is more likely to provide a better long term solution against cracking than square stopping.

Suspension Brackets & Clips:

To suit substrate and component selection, Contact Rondo Building Services Pty Ltd

4.10
SEISMIC RESTRAINT

Location:

~

Brand:

~

Type:

~

Material:

~

Delete Brand if not a proprietary type.

Fibre cement soffit cladding
4.11
FIBRE CEMENT SOFFIT CLADDING

Location:

~

Brand/ID:

~

Thickness:

~mm

Edge detail:

Square

Fixings/finish:

~ / ~

Joints:

~

Options:

Thickness:

Minimum 4.5 mm fibre cement sheet, or thicker to suit support spacing and wind zone.

Fixings/finish:

Nominate screw types. Note - limitations for use of screw fasteners on thinner sheets, refer to manufacturers documents.

 

Finish either Stainless steel or Galvanized

 

Select galvanized for exposure zones B and C or stainless steel for exposure zones B, C, D and E as determined in NZS 3604 and NZBC E2 /AS1.

 

Fixings finished flush or recessed.

joints:

uPVC jointer, timber cover battens or alternative solutions as offered by fibre cement manufacturer, including negative detail (expressed joint), butt joint detail, two-way uPVC jointer.

 

For negative detail, use the #155 batten, used either as direct-fix to the #156 clip, or clipped into a #127/128 TCR with a #159 clip if used suspended.  Using the #155 batten a negative detail up to 10mm wide can be possible [subject to soffit lining type].

4.12
FIBRE CEMENT SOFFIT CLADDING - FLUSH JOINTED

Location:

~

Brand/ID:

~

Thickness:

~mm

Edge detail:

~

Fixings:

~

Sheet setout:

~

Perimeter support:

~

Sealer:

~

Waterproofing:

~ waterproofing admixture

Jointing compound:

~

Joints/Finish:

~

Options:

Thickness:

Minimum 4.5 mm fibre cement sheet, or thicker to suit support spacing and wind zone.

Edge detail:

Recessed on 2, 3 or 4 sides.

Fixings:

Screw fix only.

 

Screw type - stainless steel or galvanized

 

Select galvanized for exposure zones B and C or stainless steel for exposure zones B, C, D and E as determined in NZS 3604 and NZBC E2/AS1.

Sheet Setout:

Nominate requirements for laying sheets in an offset pattern when required for large soffit areas.

Perimeter support:

Refer to manufacturer requirements in relation to perimeter support, options may include nogs or back blocking using sheet material.

Sealer:

Nominate sealer as required by fibre cement manufacture for use on sheet edges.

Joints/Finish:

Nominate level of finish required, consider use of higher levels of finish to minimise issues with glancing light increasing visibility of set joints.

4.13
FIBRE CEMENT SOFFIT CLADDING - PRE-FINISHED

Location:

~

Brand/ID:

~

Thickness:

~mm

Edge detail:

Square

Finish:

~

Fixings:

~ / ~

Joints:

~

Scotia Mould:

Two piece uPVC

Options:

Thickness:

Minimum 4.5 mm fibre cement sheet, or thicker to suit support spacing and wind zone.

Finish:

nominate finish if options are available

Fixings:

Pre-finished systems combine proprietary fixing methods with screw fixing. Nominate fixings / fixing method.

joints:

uPVC jointer, or alternative solutions as offered by fibre cement manufacturer, including two-way uPVC jointer detail.

4.14
FIBRE CEMENT SOFFIT CLADDING - GROOVED

Location:

~

Brand/ID:

~

Thickness:

~mm

Edge detail:

~

Fixings/finish:

~ / ~

Joints:

~

Options:

Thickness:

Minimum 4.5 mm fibre cement sheet, or thicker to suit support spacing and wind zone.

Edge detail:

Sheets have a half groove to the long edge allowing for butt jointing.

 

Form chamfer on site to the short edges for butt jointing.

Fixings:

Screw fix.

 

Select galvanized for exposure zones B and C or stainless steel for exposure zones B, C, D and E as determined in NZS 3604 and NZBC E2 /AS1.

 

Screw fixings finished flush or recessed.

 

Refer to manufacturer documents for requirements for screw fixing.

joints:

Butt joints or alternative solutions as offered by fibre cement manufacturer.

Plywood soffit cladding
4.15
PLYWOOD SOFFIT CLADDING

Location:

~

Brand/type:

~

Thickness:

~mm

Grade:

~

Treatment:

~

Edge treatment:

~

Fixing type:

~

Joints

~

Finish:

~

Options:

Thickness:

Minimum 12mm, to suit support spacing and wind zone.

Grade:

Minimum C/D grade

Treatment:

Refer to panel manufacturer. Minimum H3 treatment

Edge treatment:

Refer to products for cut edge treatment

Fixings:

Refer to the panel manufacturer requirements

Joints:

Timber cover battens or alternative solution

4.16
PLYWOOD SOFFIT CLADDING - GROOVED

Location:

~

Brand/type:

~

Thickness:

~mm

Grade:

~

Treatment:

~

Edge treatment:

~

Fixing type:

Joints:

~

Finish:

~

Options:

Thickness:

Minimum 12mm, to suit support spacing and wind zone.

Grade:

Minimum C/D grade

Treatment:

Refer to panel manufacturer. Minimum H3 treatment

Edge treatment:

Refer to products for cut edge treatment

Fixings:

Refer to the panel manufacturer requirements

Joints:

Timber cover battens or alternative solution

4.17
PLYWOOD SOFFIT CLADDING - APPEARANCE GRADE

Location:

~

Brand/type:

~

Thickness:

~mm

Grade:

~

Treatment:

~

Edge treatment:

~

Fixing type:

Joints:

~

Finish:

~

Options:

Thickness:

Minimum 12mm, to suit support spacing and wind zone.

Grade:

BB or BD are considered high visual face grades

Treatment:

Refer to panel manufacturer. Minimum H3 treatment

Edge treatment:

Refer to products for cut edge treatment

Fixings:

Refer to the panel manufacturer requirements

Joints:

Timber cover battens or alternative solution

Soffit cladding - other
4.18
SOFFIT CLADDING - OTHER

Location:

~

Brand / type:

~

Thickness:

~

Grade:

~

Treatment:

~

Edge treatment:

~

Fixing type:

~

Joint type:

~

Finish:

~

Options:
Complete title and details for soffit cladding types other than fibre cement or timber.

Modify title to suit soffit cladding type

Complete title and details for soffit cladding types other than fibre cement or timber.

For negative detail, use the #155 batten, used either as direct-fix to the #156 clip, or clipped into a #127/128 TCR with a #159 clip if used suspended.  Using the #155 batten a negative detail up to 10mm wide can be possible [subject to soffit lining type].

Components
4.19
ACCESS PANEL

Location:

~

Brand:

Rondo PANTHER® Access Panel Systems

Type:

WetLine™ board insert, with polymer frame surround

Size:

~

Refer to Rondo Building Services Pty Ltd to confirm selection, all panels are available in custom sizes to order.

Note - This Access Panel is not Fire Rated.

Accessories
4.20
TIMBER TRIM

Profile:

~

Timber species:

Radiata pine

Treatment:

H3.1

4.21
CONTROL JOINTS

Location:

~

Type:

~

4.22
SOFFIT CLADDING/WALL CLADDING JUNCTION FLASHING

Material:

~

Profile:

~

Finish:

~

Colour:

~

Materials:

Refer to NZBC E2/AS1, 4.3, for minimum properties of flashing

Finishes - materials supplied unfinished

The following clause allows for the identification of unfinished materials.

4.23
MATERIALS SUPPLIED UNFINISHED FOR ON-SITE FINISHING

Soffit:

Refer to appropriate painting section(s) for finishes

Trim:

Refer to appropriate painting section(s) for finishes

Cover batten:

Refer to appropriate painting section(s) for finishes

Modify or expand the clause to suit project requirements.

Finishes - factory applied

The following clauses allow the identification of factory applied pre-finishing to various coating levels and/or materials supplied with a complete finish.  Ensure that selections made are compatible and co-ordinated with later finishing / paint systems.  Delete clause or selections that do not apply.

4.24
MATERIALS SUPPLIED PRE-PRIMED

Soffit:

Refer to appropriate painting section(s) for finishes

Trim:

Refer to appropriate painting section(s) for finishes

Cover batten:

Refer to appropriate painting section(s) for finishes

Modify or expand the clause to suit project requirements.

4.25
MATERIALS SUPPLIED PRE-FINISHED (EXCEPT FINAL COAT)

Soffit:

~

Trim:

~

Cover batten:

~

Modify or expand the clause to suit project requirements.

4.26
MATERIALS SUPPLIED PRE-FINISHED (COMPLETE)

Soffit:

~

Trim:

~

Cover batten:

~

Modify or expand the clause to suit project requirements.

Finishes - cut edges
4.27
SITE FINISHES - CUT EDGES

Soffit:

~

Modify or expand the clause to suit project requirements, identify appropriate finishes. Refer to manufacturer/supplier requirements.

Finishes - applied on site

Ensure that selections made are compatible with factory applied finishes.  Delete clause or selections that do not apply.  Co-ordinate with painting sections.

4.28
SITE FINISHES - FINAL FINISH COAT ONLY

Soffit:

Refer to appropriate painting section(s) for finishes

Trim

Refer to appropriate painting section(s) for finishes

Cover batten

Refer to appropriate painting section(s) for finishes

Modify or expand the clause to suit project requirements, identify appropriate finishes sections