4284DA
DULUX ACRATEX EXSULITE-KOOLTHERM CLADDING SYSTEM
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 installation of Exsulite-Kooltherm Cladding System by Dulux AcraTex NZ based on cladding sheets fixed to timber/metal framing with a drained cavity and an applied textured surface finish.

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

 

This section covers specialist high build coatings, with or without a textured surface, applied by spray or roller techniques.

 

While specifically written to suit a range of interior surface finishes, this section could also be adapted to cover similar exterior coatings. However such coating systems are product specific and require careful attention to product manufacturer's preparation and application requirements.

 

Many exterior coatings are installed as part of a weatherproofing system, including joint sealing/filling. Care is again needed to ensure that both the substrate and coating manufacturer's requirements are strictly adhered to.

1.1
RELATED WORK

Refer to ~ for ~

Include cross references to other sections where these contain related work.

1.2
ABBREVIATIONS

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

K5

Kingspan Kooltherm K5

EIFS

Exterior Insulation and Finish Systems

EPS

Expanded Polystyrene

MPNZA

Master Painters New Zealand Association

PPCS

Proprietary Plaster Cladding Standard

LBP

Licensed Building Practioner

Documents
1.3
DOCUMENTS

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

NZBC B2/AS1

Durability

NZBC E2/AS1

External moisture

AS 1366.3

Rigid cellular plastics sheets for thermal insulation - Rigid cellular polystyrene - Moulded (RC/PS - M)

AS 1366.4

Rigid cellular plastics sheets for thermal insulation - Rigid cellular polystyrene - Extruded (RC/PS - E)

AS 3566

Self-drilling screws for the building and construction industries

NZS 3604

Timber-framed buildings

AS/NZS 2311

Guide to the painting of buildings

WorkSafe NZ

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

MPNZA

Health and Safety Programme

Health and Safety at Work Act 2015

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

 

RELATED DOCUMENTS

Refer to the following related documents when preparing this section:

NZBC E3/AS1

Internal moisture

BRANZ BU 633

Removing paint coatings

BRANZ BU 570

Ground clearances

BRANZ publication:

Selecting wall claddings

WGANZ Window Installation Guide

Guide to Window Installation as described in E2/AS1 Amendment 7

1.4
MANUFACTURER/SUPPLIER DOCUMENTS

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

Dulux AcraTex NZ Technical Data Sheets

Dulux Exsulite Installation Manual and Construction Drawings New Zealand March 2017 Version 2

Kingspan Kooltherm K5 External Wall Board Guide A4/6 K5 AW2161 issue 5 Dec 2016

 

CodeMark™ CMA-CM40069 (Rev2) - Dulux Acratex Exsulite Cladding Systems

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.

Use the Dulux AcraTex NZ colour brush cab be ordered online at http:www.dulux.co.nz/specifier/resources/a4-colour-samples.

 

Manufacturer/supplier contact details

Company:

Dulux AcraTex NZ

Web:

www.dulux.co.nz/specifier

Email:

specifier@dulux.co.nz

Telephone:

0800 800 424

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's and/or supplier's 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
1.5
WARRANTY - MANUFACTURER/SUPPLIER

Provide a material manufacturer/supplier warranty

15 years

For failure of materials under normal environmental and use conditions, dependent upon system used

 

  • Provide this warranty on the Dulux AcraTex NZ 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.

Modify or expand the clause to suit project or manufacturer/supplier requirements, options include:

  • Change the standard form to be used (check with the manufacturer/supplier, use the general section 1237WA WARRANTY AGREEMENT if required)
  • Commence the warranty from the date of purchase (check with the manufacturer/supplier)
1.6
WARRANTY - INSTALLER/APPLICATOR

Provide an applicator warranty:

5 years

For failure of application under normal environmental and use conditions, dependent upon system used

 

  • Provide this warranty on the applicator 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.

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

  • Change the standard form to be used (check with the applicator, use the general section 1237WA WARRANTY AGREEMENT if required)
  • Commence the warranty from the date of application (check with the applicator)
Requirements
1.7
NO SUBSTITUTIONS

Substitutions are not permitted to any specified Dulux AcraTex NZ Exsulite-Kooltherm Drained Cavity Cladding System.

1.8
QUALIFICATIONS

Use only PPCS qualified contractors that are experienced, competent, and familiar with the materials and techniques specified. Provide evidence of qualifications on request, in the form of the PPCS National Certificate qualification.

 

To obtain Dulux AcraTex NZ warranties contractors must be qualified.

Documentation
1.9
SAMPLES

Refer to the general section 1270 CONSTRUCTION for details of how samples will be reviewed and how instructions to proceed will be given.Provide the following samples for review:

 

Sample A

Sample B

Sample C

Sample description:

~

~

~

Sample type:

~

~

~

Number:

~

~

~

Location:

~

~

~

Supporting documentation:

~

~

~

Reviewer:

Contract administrator

       ~

Contract administrator

       ~

Contract administrator

       ~

Time for review:

10 working days ~

10 working days ~

10 working days ~

Review criteria:

~

~

~

The intention of this clause is to allow samples to be obtained that are not otherwise readily available to a reviewer.

 

Delete rows and columns not required or add "n/a".

Sample description:

Describe the sample, size etc.

Submit samples for each specified coating system on a 450mm square of the substrate material being coated or a site sample applied by the contractor (preferred method)

Sample type:

Portable sample for review

Portable control sample

Fixed sample for review

Fixed control sample

 

Control samples define requirements for type and quality and are used for comparison purposes throughout the contract.

 

A "portable" sample is a sample that is easily movable, convenient for carrying. A "fixed" sample is a sample (semi) permanently placed. Expand on these terms as necessary.

 

 

Number:

State number of samples required, e.g. a minimum of three control samples - portable allow a sample to be retained on site with the other samples retained by the contract administrator and contractor.

Location:

Identify location of fixed samples, e.g. off site, on site, in situ

Supporting documentation:

Describe any additional documents required to support the review.

Reviewer:

 

Modify to suit the project, add additional reviewers if required.

Time for review:

Alter time if required. Expand to state timing in relation to when and where the sample is provided, e.g. at first site meeting.

Review criteria:

For example:

- Appearance

- Texture

- Colour

Add any critical items. Provide clarity for work that is not dependent on the review to continue.

Use the Dulux AcraTex NZ colour brush outs as a basis for colour where appropriate.

Fax requests on Dulux NZ Customer Services on 0800 805 424 or order brush outs online at http:www.dulux.co.nz/specifier/resources/a4-colour-samples.

1.10
INFORMATION FOR OPERATION AND MAINTENANCE

Provide Dulux AcraTex NZ Texture Care Guide maintenance instructions before practical completion of the contract for issuing to the building owner.

A copy of the maintenance instructions may be required by the Building Consent Authority with the building consent application.

1.11
PRODUCER STATEMENT

Provide the PS3 producer statement and workmanship warranty compiled by the LBP contractor who is PPCS qualified in the form as required by the Building Consent Authority.

1.12
HEALTH AND SAFETY

Refer to the requirements of the Health and Safety at Work Act 2015 and WorkSafe NZ:   Guidelines for the provision of facilities and general safety in the construction industry.

If the elimination or isolation of potential hazards and risks is not possible then minimise hazards and risks in this work on site by using the proper equipment and techniques as required in the MPNZA Health and Safety Programme.  Supply protective clothing and equipment.  Inform employees and others on site of the hazards and risks, and put into place procedures for dealing with emergencies.  Obtain from Dulux AcraTex NZ the material safety data sheets for each product.  Keep sheets on site and comply with the required safety procedures

1.13
ENVIRONMENT

Dulux AcraTex NZ recommends the use of the Dulux EnviroWash system for the cleaning of water based paint and plasters from brushes, rollers, plastering or spray equipment. The process separates the solids from the water component for safe disposal.  Phone Dulux Customer Services on 0800 800 424 for further information regarding this system.

Performance
1.14
COMPLIANCE - DULUX ACRATEX EXSULITE CLADDING SYSTEMS

Dulux Acratex Exsulite Cladding systems meet the requirements of the CodeMark® certificate CodeMark® CMA-CM40069 (Rev2) when used within the conditions and limitations of its Certificate of Conformity.  These include:

  • Dulux AcraTex Exsulite Cladding System must only to be installed in accordance with the Dulux Exsulite Installation Manual and Construction Drawings New Zealand March 2017 Version 2
  • Dulux AcraTex Exsulite Kooltherm K5 Cladding System must only to be installed in accordance with the Kingspan Kooltherm K5 External Wall Board Guide A4/6 K5 AW2161 issue 5 Dec 2016
  • The Dulux Exsulite System is restricted to use as external wall cladding as follows:
  • Single storey buildings 1m or more from the boundary for all purpose groups
  • Buildings up to 7m high, 1m or more from the boundary, for all purpose groups other than SC
  • Refer to the certificate for full list of conditions and limitations

The certificate provides third parties with compliance to NZBC Clauses and standards specified within the certificate, provided that installation of the system is in accordance with installation manuals referred to above.

1.15
DURABILITY

The work covered by this part of the specification has been designed and constructed to NZBC B2/AS1 to achieve a durability of 10 years.

1.16
PERFORMANCE

The appointed Dulux AcraTex NZ plastering contractor must accept responsibility for the structural and weather-tight performance of the exterior render application.

1.17
PROTECTION OF NEW PLASTER

Confirmation of the protection systems to be applied to fresh plaster coats to be agreed between the main contractor and the licensed applicator before plastering begins.

Normally required curing procedures can be altered when acrylic-modified plasters (bonding agents) have been specified.  Such plasters may only need to be protected from direct sun and strong, drying winds for 16 - 24 hours.  Consult the manufacturer's requirements in this clause or write another.

1.18
INSPECTIONS

Allow to inspect the whole of the work at each stage.  Determine a programme for inspections including notification when each part and stage of the work is ready for inspection prior to the work commencing.

The level of inspection will depend on the nature of the project and will range from full for large/complex projects through intermittent for straightforward work, to occasional for initially establishing the standards of execution.  Refer to AS/NZ 2311 Appendix C, Inspection and Testing, for more background.

2
PRODUCTS
Materials - Dulux AcraTex NZ texture and paint system
2.1
ACRYLIC RESIN SEALER

Dulux AcraTex 500/4 AcraBond, a 100% acrylic resin sealer for consolidating and unifying surface of the Kooltherm K5 board.

2.2
RENDER BASE COAT

Dulux AcraTex RenderWall P400, a pre-mixed meshing render for use over lightweight substrates.  Coarse meshing render will cure to form a strong crack resistant base which will accept a textured finish. VOC < 1gL.

2.3
CEMENT BASED TEXTURE

Dulux AcraTex RenderWall Float Finish Medium, a pre-mixed render specifically formulated to produce a subtle, granular texture appearance.  VOC < 1g/L.

Used to achieve a grainy texture finish.

 

When specifying texture coatings Dulux recommend that consideration should be given to the type and profile of  the texture and preparation of the substrate to achieve the specified texture as this will impact on the applied m² rate. Confirmation via a sample of the texture profile is highly recommended (site sample applied by the contractor is preferred) prior to final pricing sign-off by the contractor administrator.

 

Contact a Dulux representative for a texture sample.

2.4
PRIMER

Dulux AcraTex AcraPrime 501/10 Green Render Sealer, a water based primer/sealer designed specifically for application over fresh green masonry surfaces.  Minimizes unsightly white salts and efflorescence.  VOC < 22g/L

2.5
ACRYLIC TEXTURE - TROWEL ON

Acrylic texture comprises of either,

  • Dulux AcraTex 951Trowel on 1mm, or
  • Dulux AcraTex 951 Coventry Coarse.

A 100% pure acrylic emulsion containing inert fillers, graded aggregates, fungicides and colour stable pigments.  Supplied in a semi-liquid paste consistency.  Product applied by trowel or hopper gun in a single application.  VOC < 35g/L.

Used to achieve a tight granular finish.

 

Two trowel-on acrylic texture options are shown above.

When specifying texture coatings Dulux recommend that consideration should be given to the type and profile of the texture and preparation of the substrate to achieve the specified texture as this will impact on the applied m² rate. Confirmation via a sample of the texture profile is highly recommended (site sample applied by the contractor is preferred) prior to final pricing sign-off by the contractor administrator.

 

Contact a Dulux representative for a texture sample.

2.6
ACRYLIC TEXTURE - SPRAY ON

Dulux AcraTex 952 Spray on 2mm, a 100% pure acrylic emulsion containing inert fillers, graded aggregates, fungicides and colour stable pigments.  Supplied in a semi-liquid paste consistency.  Product applied by hopper gun in a dual application.  VOC < 35g/L.

Used to achieve a textured stippled finish.

 

When specifying texture coatings Dulux recommend that consideration should be given to the type and profile of the texture and preparation of the substrate to achieve the specified texture as this will impact on the applied m² rate. Confirmation via a sample of the texture profile is highly recommended (site sample applied by the contractor is preferred) prior to final pricing sign-off by the contractor administrator.

 

Contact a Dulux representative for a texture sample.

2.7
TOPCOAT

Topcoat comprises of either,

  • Dulux AcraTex AcraShield Advance, a 100% acrylic high build, pigmented pure acrylic coating, available in matt and low gloss finishes.  Suitable to be applied over cement based plaster finishes as well as acrylic textured surfaces.  Recommended DFT 75 µm at 6 m²/L. VOC < 60g/L, or,
  • Dulux AcraTex 968 Elastomeric 201 Matt, an extremely weather resistant, highly flexible, water based acrylic coating that is a technologically advanced version of an elastomeric membrane with the advantages of a decorative paint.  Recommended DFT 125 µm at 4 m²/L.  VOC < 60g/L.
Components
2.8
POLYSTYRENE SHEET FOR EXSULITE-KOOLTHERM CLADDING

Dulux AcraTex NZ Exsulite 50mm thick EPS sheet to class S or H.  Sheet quality to comply with AS 1366.3 and AS 1366.4, Rigid cellular plastic sheets for thermal insulation - Rigid cellular polystyrene.

Class H EPS has a density of 24 kg/m³. Class S EPS has a density of 16 kg/m³.

2.9
THERMOSET PHENOLIC INSULATION WALL BOARD

Kingspan Kooltherm K5 50mm or 80mm super high performance thermoset phenolic board suitable for use behind traditional and lightweight polymer modified renders.

2.10
EXTERIOR WALL CAVITY BATTENS

Cavity battens manufactured from high density (Class H) EPS; nominal size is 50mm x 20mm thick.

2.11
FLASHINGS AND ACCESSORIES

Proprietary profiles made from uPVC for head, sill, and jamb flashings, corner beads, cavity vent strip (base bead), Z flashings and horizontal and vertical control joint flashings for exterior applications.

Vermin-proofing/cavity closer to NZBC E2/AS1: clause 9.1.8.3 and provide an area of opening of 1000mm² per lineal metre

Accessories - Exsulite
2.12
FIXINGS, TIMBER - GALVANIZED, EXSULITE

50mm system:

110mm x 3.6mm hot-dip galvanized flat head nails with 42mm diameter plastic washers.

2.13
FIXINGS, TIMBER - STAINLESS STEEL, EXSULITE

50mm system:

100mm 304 stainless steel (grade 304 A2-70 CsK woodscrew, square drive (with nibs) with 42mm diameter plastic washers.

2.14
FIXINGS, STEEL - EXSULITE

50mm system:

100mm x 8mm exterior grade self-tapping steel screws with 40mm diameter plastic washers.

Screws to comply with AS 3566 class 3 - 6 gauge in corrosion zones 1, 2 and 3.

Screws to comply with AS 3566 class 4 - 6 gauge screws in corrosion zones 1, 2, 3 and 4 as defined by NZS 3604, used with 40mm diameter washers.

2.15
REINFORCING MESH - EXSULITE

Alkali-resistant fibre glass woven reinforcing mesh with a nominal mesh size of approximately 4mm square and a weight of 160g/m² for domestic and light commercial areas.  Where higher impact resistance is required, use 360g/m² with nominal size of approximately 5 x 4mm.

Two weights available; Residential and light commercial nominal 4 x 4mm aperture weighting 160g/m² min and commercial or for high impact areas nominal 4 x 5mm aperture weighting 360g/m² min.

2.16
SEALANTS - EXSULITE

Paintable neutral cure silicone in accordance with Dulux AcraTex NZ Manual and set against backer rods where necessary.

Sealant to comply with NZBC E2/AS1 or sealant covered by a valid BRANZ Appraisal for use as a weather sealing sealant for exterior use.

2.17
ADHESIVE - EXSULITE

Solvent free PVC construction adhesive compatible with EPS and in accordance with Dulux AcraTex NZ requirements.

Accessories - Kooltherm K5
2.18
FIXINGS, TIMBER - GALVANIZED, 50MM K5 SYSTEM

50mm

100mm x 3.6mm hot-dip galvanized flat head nails with 42mm diameter plastic washers.

2.19
FIXINGS, TIMBER - STAINLESS STEEL, 50MM K5 SYSTEM

50mm system

100mm 304 stainless steel (grade 304 A2-70) CsK woodscrew, square drive (with nibs) with 42mm diameter plastic washers.

2.20
FIXINGS, STEEL,50MM K5 SYSTEM

50mm  system:

100mm x 8mm exterior grade self-tapping steel screws with 40mm diameter plastic washers.

Screws to comply with AS 3566 class 3 - 6 gauge in corrosion zones 1, 2 and 3.

Screws to comply with AS 3566 class 4 - 6 gauge screws in corrosion zones 1, 2, 3 and 4 as defined by NZS 3604, used with 40mm diameter washers.

2.21
FIXINGS, TIMBER - GALVANIZED, 80MM K5 SYSTEM

80mm system:

130mm x 3.6mm hot-dip galvanized flat head nails with 42mm diameter plastic washers.

2.22
FIXINGS, TIMBER - STAINLESS STEEL, 80MM K5 SYSTEM

80mm system:

130mm 304 stainless steel (grade 304 A2-70) CsK woodscrew, square drive (with nibs), with 42mm diameter plastic washer.

2.23
FIXINGS, STEEL, 80MM K5 SYSTEM

80mm system:

130mm x 8mm exterior grade self-tapping steel screws with 40mm diameter plastic washers.

Screws to comply with AS 3566 class 3 - 6 gauge in corrosion zones 1, 2 and 3.

Screws to comply with AS 3566 class 4 - 6 gauge screws in corrosion zones 1, 2, 3 and 4 as defined by NZS 3604, used with 40mm diameter washers.

2.24
REINFORCING MESH - K5

Alkali-resistant fibre glass woven reinforcing mesh with a nominal mesh size of approximately 4mm square and a weight of 160g/m² for domestic and light commercial areas.  Where higher impact resistance is required, use 360g/m² with nominal size of approximately 5 x 4mm.

Two weights available; Residential and light commercial nominal 4 x 4mm aperture weighting 160g/m² min and commercial or for high impact areas nominal 4 x 5mm aperture weighting 360g/m² min.

2.25
SEALANTS - K5

Paintable neutral cure silicone in accordance with Dulux AcraTex NZ Manual and set against backer rods where necessary.

Sealant to comply with NZBC E2/AS1 or sealant covered by a valid BRANZ Appraisal for use as a weather sealing sealant for exterior use.

2.26
ADHESIVE - K5

Solvent free PVC construction adhesive compatible with Kooltherm K5 and in accordance with Kingspan Kooltherm K5 requirements.

Materials - repaint, existing textured substrate
2.27
PRIMER

Dulux AcraTex AcraPrime 501/1, a water-based primer/sealer for application over fibre cement surfaces.  VOC < 22g/L.

2.28
TOPCOAT

Topcoat comprises of either,

  • Dulux AcraTex AcraShield Advance, a 100% acrylic high build, pigmented pure acrylic coating, available in matt and low gloss finishes.  Suitable to be applied over cement based plaster finishes as well as acrylic textured surfaces.  Recommended DFT 75 µm at 6 m²/L.  VOC < 60g/L, or,
  • Dulux AcraTex 968 Elastomeric 201 Matt, an extremely weather resistant, highly flexible, water based acrylic coating that is a technologically advanced version of an elastomeric membrane with the advantages of a decorative paint.  Recommended DFT 125 µm at 4 m²/L.  VOC < 60g/L.
3
EXECUTION
Conditions
3.1
DELIVERY, STORAGE & HANDLING OF PRODUCTS

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

  • Deliver all materials in original unopened packaging with labels intact.  Provide dry storage on site, stack carefully, protect from mechanical damage.  Keep bagged render off concrete surfaces.  Dispose of any bagged material that is more than 6 months old.
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.

3.3
CHECK SUBSTRATE

Do not commence work until openings and apertures have been cut, pipes, fixtures, fixing pads and plugs have been fixed and flashings and other preparations are complete.  All defects in substrate must be rectified by the trades applicable prior to application of plaster coatings.  Ensure that backgrounds and adjoining surfaces are, after the preparation called for in this section, of Dulux AcraTex NZ required standard.  All mortar joints to be flush finished and no wider than 15mm, with all nibs and profusions ground off by the brick / block layer.

3.4
PLASTERING CONDITIONS

Carry out plastering to Dulux AcraTex NZ specification under conditions, which will not adversely affect the finished work.

Refer to Manufacturer's product manual.

3.5
PROTECT

Before application of plaster, apply masking film and tape to all joinery, pipes, roofs and all areas likely to be marked by the plaster.  Use drop cloths and ground covers to keep the working areas clean.  Clean off droppings onto finished work immediately.

3.6
FLASHING AND DETAILING

Comply with Dulux AcraTex NZ penetration flashing guidelines.  Carry out to the required standard of execution to NZBC E2/AS1 ensure water does not penetrate.

Head flashings made from powder coated aluminium supplied by main contractor for both recessed and face-fixed timber, aluminium and PVC joinery.  Sub-trade penetrations must be flashed and sealed by that trade.

3.7
STANDARDS AND TOLERANCES

Comply with the tolerances laid down in NZS 4210 Table 2.2.  To have no deviation plus or minus 3mm from a shimmed straight edge 1200mm long.

3.8
CONFIRM LAYOUT

Before commencing work confirm the layout of expansion joints and other visual detailing of the finished work.

3.9
CHECK BACKGROUND

Before plastering is commenced, eliminate surface contaminants, remove dust, debris, oils, greases, retarders, and paint from already painted surfaces and loose material.  Leave the surface dust free and clean.  Make good any defects in the background which may adversely affect the adhesion of the plaster coating.  Ensure that the background and adjoining surfaces are, after the preparation called for in this section, of the required standard.  Do not commence until the pointing is fully cured.  Refer to Dulux AcraTex NZ for advice before proceeding.

Defects in substrate by others must be rectified by appropriate trade prior to plaster application commencing.

3.10
PENETRATIONS

Comply with NZBC E2/AS1.  All penetrations such as waste pipes, electrical wiring in uPVC conduits and metal plumbing piping install with a minimum 5° downward slope, through the plaster system, to be sealed using a double application of Fosroc Duraflex after the application of the required base coat plaster and before the plaster finishing coat.

Refer to the Window & Glass Association NZ (WGANZ) Window Installation Guide, this covers WGANZ recommendations on the preparation of window/door openings, minimum clearances between rough openings and the window/door frame, dressing of the wall wrap/underlay into the prepared opening, application of flexible flashing tape to the sill and top corners of the opening, installation of window/door frames and flashings, sealing of the window/door frame into the opening to create a pressure equalisation cavity, installation of flashings and the maintenance of appropriate clearances between the frame and the surrounding construction.

Penetrations through drained cavities to NZBC E2/AS1: External moisture, 9.1.9 Penetrations and 9.1.10 Windows and doors.

3.11
SILLS BALUSTRADES AND PARAPET TOPS

A minimum slope of 10° to all horizontal surfaces.

Application - preparation
3.12
IRREGULARITIES

Fill voids and hollows with a base coat from the Dulux AcraTex NZ range of base and patching compounds dependent on depth to provide a level even plane surface.

3.13
CAVITY BATTENS

Fix battens full length to studs to achieve a 20mm minimum thickness drained cavity to NZBC E2/AS1: 9.0 Wall claddings.  The battens are fixed by the cladding fixings which will penetrate the wall framing studs over the wall underlay.  Seal the top of the cavity.  Horizontal cavity battens must be no longer than 100mm.  Use cavity spacers where fixing is required between cavity battens.  Fix additional battens to internal and external corners and around openings to Dulux AcraTex NZ standard details.

Note that it is important that the openings in the vermin proofing/cavity closer are kept clean and unobstructed in order to maintain drainage and venting of the cavity.

3.14
POLYSTYRENE SHEETS, NAILED TO CAVITY BATTENS

Butt-joint the polystyrene sheets continuously support all edges and nail with heads flush in accordance with Dulux AcraTex NZ details.  Install vermin-proof punched Dulux AcraTex Exsulite EIFS Cladding System base bead at the base of polystyrene sheets.

3.15
THERMOSET PHENOLIC INSULATION WALL BOARD, NAILED TO CAVITY BATTENS

Butt-joint the Kooltherm K5 Wall Board continuously support all edges and nail with heads flush in accordance with Kingspan Kooltherm K5 Wall Board Guide.  Install vermin-proof punched Kooltherm K5 Cladding System base bead at the base of wall board.

3.16
INSTALLATION - POLYSTYRENE SHEET FOR EIFS CLADDING

Install Dulux AcraTex NZ Exsulite 50mm thick EPS sheet in accordance with the requirements of Dulux Exsulite Installation Manual and Construction Drawings New Zealand March 2017 Version 2.

Dulux AcraTex NZ technical team is available to provide further information if required.

3.17
INSTALLATION - THERMOSET PHENOLIC INSULATION WALL BOARD

Install Dulux AcraTex Exsulite Kooltherm K5 Cladding System in accordance with the requirements of Kingspan Kooltherm K5 External Wall Board Guide A4/6 K5 AW2161 issue 5 Dec 2016.

Dulux AcraTex NZ technical team is available to provide further information if required.

3.18
PENETRATION FLASHINGS

Fix in place required uPVC trims, profiles flashings and control joints.  Seal service penetrations such as piping and light fittings.

3.19
FLASHING AND ACCESSORIES

Fit flashings to jambs and sill on recessed joinery using Dulux AcraTex NZ proprietary flashings.  Reinforce external corners and bottom edges of polystyrene sheets with uPVC angles and channel extrusions.  Fit joinery heads with a head flashing (if not protected by boxed eaves or other protection).

3.20
MOVEMENT CONTROL JOINTS

Incorporate movement joints in accordance with the design information supplied by Dulux AcraTex NZ.

Position control joints over solid timber backing and provide them on all walls over 20m in length or over 7m high, at abutments to different cladding types, where cladding covers structural materials, and over a movement joint in the underlying framing.  Confirm locations in writing to the contract administrator before commencing work.

3.21
EXPOSED CONTROL JOINTS

Provide control joints in the plaster to coincide with control joints in the substrate and or junctions between dissimilar substrates in the same plane and or where shown on the drawings and to Dulux AcraTex NZ requirements.  Terminate reinforcing mesh each side of control joints.  Exposed control joints to be reflected through final coatings from substrate.  All control joints to be in place and sealed prior to the commencement of the plastering.

Control Joints to NZS 4251, 2.1.9 Control joints, substrate manufacturer's specifications, and or engineer's requirements.

3.22
INSTALL UPVC CORNER AND EDGE BEADS

Install all uPVC corner and edge beads necessary and to Dulux AcraTex NZ requirements prior to plaster application commencing.

3.23
POLYSTYRENE ARCHITECTURAL DETAILING AND INTER STOREY JOINTS

Fix polystyrene shapes used to create detailing and or at inter-storey joints after the sheets have been primed and jointed or meshed, using EIFS safe adhesive or Dulux AcraTex NZ plaster (notched with appropriate trowel) applied to the shape prior to placing over the prepared sheets.  Temporary fixings may be used while the adhesive cures.  All plant on shapes to be pre-meshed and weatherproofed especially along the top junction with a bead of MS sealant before the finishing plastering commences.

3.24
INSTALL SEALANT

Seal all junctions between the joinery and fibre cement sheets, and around penetrations, flashing ends and other similar details with a minimum 6mm bead of MS sealant.

3.25
FINISHING

Refer to SELECTIONS for type and colour.

An LRV 40% minimum is a NZBC requirement and applies to all monolithic substrates.

Application - Dulux AcraTex NZ texture and paint system
3.26
APPLY CEMENT BASED TEXTURE

Apply Dulux AcraTex RenderWall Float Finish Medium to produce a granular texture appearance to Dulux AcraTex NZ requirements.

3.27
APPLY PRIMER

Apply Dulux AcraTex AcraPrime 501/10 Green Render Sealer with roller, brush or airless spray to Dulux AcraTex NZ requirements.

3.28
APPLY ACRYLIC TEXTURE - TROWEL ON

Apply Dulux Acratex 951 Trowel on 1mm, or Dulux AcraTex 951 Coventry Coarse by steel trowel to the thickness of the aggregate within the emulsion, and then float with either a plastic finishing float or polystyrene for the coarser grade aggregate products, all to Dulux AcraTex NZ requirements.

3.29
APPLY ACRYLIC TEXTURE - SPRAY ON

Apply Dulux AcraTex 952 Spray on 2mm using a Hopper Gun with a 4mm tip at 50psi for a 1mm texture and 6 - 8mm tip at 50psi for 2mm texture, on second pass reduce pressure to 30psi, to Dulux AcraTex NZ requirements.

3.30
APPLY TOPCOAT

Apply the specified number of coats of Dulux AcraTex AcraShield Advance with roller, brush or airless spray to the recommended spread rate as per DuSpec specification shown in SELECTIONS, or:

Apply the specified number of coats of Dulux AcraTex 968 Elastomeric 201 Matt with roller, brush or airless spray to the recommended spread rate as per DuSpec specification shown in SELECTIONS.

Application - repaint, existing substrates
3.31
ADHESION TESTING

Inspect and test the surfaces of existing painted substrates to ensure that they are capable of supporting the new coating.  A "cross hatch" adhesion test as an absolute minimum is mandatory, even on a substrate that appears to have a sound firmly adhered paint coating.  Carry out testing in many locations and in areas just under window sills, the weather side of the structure and along the lower part of the wall.  Remove previous coatings in any areas that fail the adhesion test.

3.32
PREPARE SURFACE

Remove loose or flaky paint (as judged by an adhesion test), dust, dirt, salt deposits, mould/fungi and any other surface contaminants with Dulux Prep Wash.  High pressure water blasting is highly recommended as a standard procedure for cleaning the surface; it will also give a good indication as to its integrity.

 

Repair or fill large cracks and flaws with a suitable patching compound.  Smaller cracks (up to 1 mm with Dulux AcraTex 968 Elastomeric 201 or Dulux AcraTex AcraShield Advance) do not need to be filled as these will be bridged by the topcoat.

 

Where the previous coating is removed back to the bare substrate or repairs have been carried out, spot priming will be required.  Dulux AcraTex AcraPrime 501/1 water based primer is recommended, unless the surface is particularly powdery and friable, in which case Dulux AcraTex AcraPrime 501/2 solvent based is recommended.

3.33
APPLY PRIMER - WATER BASED

Apply Dulux AcraTex AcraPrime 501/1water-based primer/sealer to Dulux AcraTex NZ requirements.

3.34
APPLY TOPCOAT

Apply the specified number of coats of Dulux AcraTex AcraShield Advance with roller, brush or airless spray to the recommended spread rate as per DuSpec specification shown in SELECTIONS, or:

Apply the specified number of coats of Dulux AcraTex 968 Elastomeric 201 Matt with roller, brush or airless spray to the recommended spread rate as per DuSpec specification shown in SELECTIONS.

Completion
3.35
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.dulux.co.nz/specifier.

Substitutions are not permitted to the following, unless stated otherwise.

If substitutions are permitted modify the statement above, ensure the NO SUBSTITUTIONS clause from GENERAL is treated the same.

 

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

 

SELECTIONS is for providing details of the actual selections to be included in the contract works including model numbers, colours and other information necessary to ensure that the correct materials are supplied and installed.

Components
4.1
POLYSTYRENE SHEET CLADDING

Brand/type:

Exsulite

Thickness/grade:

50mm H grade polystyrene

4.2
KOOLTHERM K5 WALL BOARD CLADDING

Brand/type:

Kingspan Kooltherm K5

Thickness/grade:

~

Option:

Thickness/grade:

50mm or 80mm

Dulux AcraTex NZ texture and paint system

When specifying texture coatings Dulux recommend that consideration should be given to the type and profile of the texture and preparation of the substrate to achieve the specified texture as this will impact on the applied m² rate. Confirmation via a sample of the texture profile is highly recommended(site sample applied by the contractor is preferred) prior to final pricing sign-off by the contractor administrator.

 

Contact a Dulux representative for a texture sample.

4.3
DULUX - ACRYLIC TEXTURE - COVENTRY COARSE, ACRASHIELD

System:

DuSpec NZ_SA08677

1st coat:

DULUX AcraTex RenderWall P400

2nd coat:

DULUX AcraTex AcraPrime 501/10 Green Render Sealer

3rd coat:

DULUX AcraTex Coventry Coarse Trowel On

4th coat:

DULUX AcraTex AcraShield Advance

Dulux AcraTex AcraShield Advance Matt topcoat also available a Low Gloss finish in some colours.

Refer to system specification NZ_SA08678.

4.4
DULUX - ACRYLIC TEXTURE - COVENTRY COARSE, ELASTOMERIC

System:

DuSpec NZ_SA08679

1st coat:

DULUX AcraTex RenderWall P400

2nd coat:

DULUX AcraTex  AcraPrime 501/10 Green Render Sealer

3rd coat:

DULUX AcraTex 951 Coventry Coarse Trowel On

4th coat:

DULUX AcraTex 968 Elastomeric 201

4.5
DULUX - ACRYLIC TEXTURE - TROWEL ON 1MM, ACRASHIELD

System:

DuSpec NZ_SA08680

1st coat:

DULUX AcraTex RenderWall P400

2nd coat:

DULUX AcraTex AcraPrime 501/10 Green Render Sealer

3rd coat:

DULUX AcraTex 951 Trowel On 1mm

4th coat:

DULUX AcraTex AcraShield Advance

Dulux AcraTex AcraShield Advance Matt topcoat also available a Low Gloss finish in some colours.

Refer to system specification NZ_SA08681.

4.6
DULUX - ACRYLIC TEXTURE - TROWEL ON 1MM, ELASTOMERIC

System:

Duspec NZ_SA08682

1st coat:

DULUX AcraTex RenderWall P400

2nd coat:

DULUX AcraTex AcraPrime 501/10 Green Render Sealer

3rd coat:

DULUX AcraTex 951 Trowel On 1mm

4th coat:

DULUX AcraTex 968 Elastomeric 201

4.7
DULUX - ACRYLIC TEXTURE - SPRAY ON 2MM, ACRASHIELD

System:

DuSpec NZ_SA08683

1st coat:

DULUX AcraTex RenderWall P400

2nd coat:

DULUX AcraTex AcraPrime 501/10 Green Render Sealer

3rd coat:

DULUX AcraTex 952 Spray on 2mm

4th coat:

DULUX AcraTex AcraShield Advance

Dulux AcraTex AcraShield Advance Matt topcoat also available a Low Gloss finish in some colours.

Refer to system specification NZ_SA08685.

4.8
DULUX - ACRYLIC TEXTURE - SPRAY ON 2MM, ELASTOMERIC

System:

DuSpec NZ_SA08686

1st coat:

DULUX AcraTex RenderWall P400

2nd coat:

DULUX AcraTex AcraPrime 501/10 Green Render Sealer

3rd coat:

DULUX AcraTex 952 Spray on 2mm

4th coat:

DULUX AcraTex 968 Elastomeric 201

4.9
DULUX - CEMENT BASED TEXTURE - FLOAT FINISH, ACRASHIELD

System:

DuSpec NZ_SA08687

1st coat:

DULUX AcraTex RenderWall P400

2nd coat:

DULUX AcraTex RenderWall Float Finish Medium

3rd coat:

DULUX AcraTex AcraPrime 501/10 Green Render Sealer

4th coat:

DULUX AcraTex AcraShield Advance

5th coat:

DULUX AcraTex AcraShield Advance

Dulux AcraTex AcraShield Advance Matt topcoat also available a Low Gloss finish in some colours.

Refer to system specification NZ_SA08689.

4.10
DULUX - CEMENT BASED TEXTURE ON - FLOAT FINISH, ELASTOMERIC

System:

DuSpec NZ_SA08690

1st coat:

DULUX AcraTex RenderWall P400

2nd coat:

DULUX AcraTex RenderWall Float Finish Medium

3rd coat:

DULUX AcraTex AcraPrime 501/10 Green Render Sealer

4th coat:

DULUX AcraTex 968 Elastomeric 201

5th coat:

DULUX AcraTex 968 Elastomeric 201

Repaint - existing substrate
4.11
DULUX - REPAINT - ALL TEXTURED SUBSTRATES, ACRASHIELD

System:

DuSpec NZ_SA08756

Spot prime:

DULUX AcraTex AcraPrime 501/1 AcraPrime Water Based

1st coat:

DULUX AcraTex AcraShield Advance

2nd coat:

DULUX AcraTex AcraShield Advance

Dulux AcraTex AcraShield Advance Matt topcoat also available a Low Gloss finish in some colours.

Refer to system specification NZ_SA08757.

4.12
DULUX - REPAINT - ALL TEXTURED SUBSTRATES, ELASTOMERIC

System:

DuSpec NZ_SA08758

Spot prime:

DULUX AcraTex AcraPrime 501/1 AcraPrime Water Based

1st coat:

DULUX AcraTex 968 Elastomeric 201

2nd coat:

DULUX AcraTex 968 Elastomeric 201