Jan 13


NRG Greenboard 40mm – 60mm – 75mm – 100mm

Showing unique, ‘Registered Design Certified‘ diagonal grooving system – Advantages better key for rendered surface, in addition to allowing the inner surface to breath against the sarking membrane.

External PVC Bead


  • External corners
  • Option, window and door reveals (External corners)

Available in 3.5mm and 6mm render system, at 3m lengths.


Starter Bead 40mm – 60mm – 75mm – 100mm (Cavity Release)


  • Concrete slab, rebate base starter bead.
  • Timber floor: NRG base bead.
  • Over lower roof base bead.

Available in 3.5mm and 6mm render systems at 3m lengths.


NRG PVC Feature Bead


  • Feature Greenboard Recesses.
  • Horizontal and Vertical.
  •  Available as 3.5mm and 6mm render systems, at 3m lengths.
  • (See ‘NRG Feature Panel‘)

UV Stablised.

Adhesives & Sealant

  • Bostik Fireban One: Fire rated Polyurethane Sealant.
  • Bostik Seal’n Flex: Polyurethane UV Stablised Sealant.
  • Bostik Adhesive: ‘No more nails’ (See page 11 of NRG Specification Guide).



NRG Greenboard Polymer Modified Render

  • 1st Coat application, together with NRG Fibreglass Mesh.
  • 2nd Coat application.



NRG Acrylic Texture.


  • – 3rd Coat (Flat plastic float finish).
  • – Apply as final acrylic coating, over polymer modified render.
  • – Minimum cure time 48hrs, before paint applied finishes.


  • – NRG Sunhoods.
  • – Post render, x 2 Coats.
  • – Pre-paint application.

Select UV Stablised product, made to adhere to cementuous based material.

Masonry Fixings

a simple but effective method of fixing Greenboard to masonry surfaces.

NRG Greenboard Hilti IDP
Polypropylene Anchors
Hilti IDP Anchors
Maximum Fixing Centers
40mm 70mm Refer:- iv) above for spacing details
60mm 90mm
75mm 110mm

NRG EPS Battens


 NRG 75 CR (Cavity Release)

  • NRG 35 x 25 x 1240mm Batten.
  • Fixing: (Timber) 40mm Galv. clout.
  • Fixing: (Steel) 40mm Drill Point screw.
  • (See ‘NRG 75 CR‘ section details).

Reveal Bead 40mm – 60mm – 75mm


  • Window Reveals.
  • Base edge of cladding.
  • Control joints.

Available in 3.5mm and 6mm render systems at 3m lengths.


Expansion Joint Bead


  • – Horizontal control joints.
  • – Vertical control joints.
  • – Sunhood drip groove.

Available in 3.5mm and 6mm render systems at 3m lengths.


Bostik PVC Primer 5077


 PIVOTAL STEP: Adhesion of polyurethane UV stablised sealant, to all window/door joinery, relies heavily on this procedure. Failure to impliment this primer, prior to sealing, will result in inferior trade practice. Resulting in possible polyurethane breakdown. (See page 11 of NRG Specification Guide)

Foam Adhesives


  • – Installation of both Sunhoods & Blades.
  • – Larger hole fillers.
  • – Masonary assist adhesion.

Powers – Expanded Trigger Foam
Power(s) Foam Cleaner(s)x

Sunhood & Blades:

 Mechanical Fixings:

  • – Galvanised Brackets.
  • – Coach Screws (Timber).
  • – Anchor Bolts (Masonry).
  • – Purlin Bolts (Steel).

(See specification guide)

NRG Greenbaord Mesh


  • Reinforced, alkali resistant, fibreglass 160g/m mesh.
  • Lightly trowelled into 1st Polymer render coat.


Stud Fixing & Washers

Timber Fixing and Metal Fixings

  • N.B. Screws are to be Galvanised or Treated (Class 3)
  • All NRG PVC Washers and Fixings are required at 300mm
  • Maximum centres – Refer to Page 9 DWG 1.0
  • Extreme environments – consideration should be given to the use of T316 Stainless Steel Fixings.
NRG Greenboard Timber Framing Treated CSK Ribbed Head Steel Framing Treated CSK Drill Point
40mm 10.8 x 65mm 55mm
60mm 10.8 x 100mm 75mm
75mm 10.8 x 100mm 90mm
100mm 10.8 x 125mm 125mm

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Jan 13



Feature elevation designed recessess to NRG Greenboard, are very simplistic to achieve. Adding a symmetrical design element, that will compliment your residential or commercial project…….. main wall elevations …. Roof parapet fascades …. Coloumns, are typical construction sections that, when paint completed, look symetrically sharp, with clean architectural lines. Please view “Gallery” project completed.Find Out More

Jan 13

NRG 75 CR Cavity Release.

NRG Greenboard Energy Efficient Building Systems, is pleased to advise all building professionals, Architects/ Building Designers/ Draftsman/ Developers and Builders, that NRG Building Systems now has the smart choice option of NRG Greenboard cladding “Cavity Release” batten system, (NRG 75 CR).


  • NRG exterior wall R-Value = 3.31R
  • Air rating cavity
  • Mositure release management system
  • CodeMark Accreditation, Building Code of Australia approved certification.

A comprehensive specification and installation guide is available following this introduction, covering all section details, of NRG 75 CR Specified Components and Essential Related Trade Practices.

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Jan 13


NRG Energy Efficient Building Systems is pleased to announce a revolution in lightweight cladding systems. NRG Building Systems is the first and only company to achieve Code Mark Accreditation and BAL29 Fire Testing on EPS cladding systems.

NRG Greenboard Wall System has CodeMark and BAL29 Accreditation on the complete system, comprising of NRG Greenboard, fixings, render beads, polymer modified render, reinforced mesh, textures and membrane coatings. NRG is the only company to achieve CodeMark Accreditation making the system fully BCA compliant. NRG Greenboard has legislated product acceptance nationwide, giving the consumer total piece of mind and confidence.

NRG Greenboard has passed extensive fire testing procedures (in accordance with AS1530. 8.1-2007), by global testing company Exova Warringtonfire, that enables NRG Greenboard to comply in BAL29 areas (Bush Fire Attack Level). Used in conjunction with NRG Batten System, (NRG Battens) increases the R-Value to 3.31R.

Insurance companies are now insisting that EPS cladding systems have BAL Rating and CodeMark Accreditation. Why risk a product that insurance companies will reject. Once again NRG Greenboard gives the designer, certifier, builder and customer total confidence and piece of mind.

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Jan 13

NRG 100mm – 75mm – 60mm – 40mm DF GREENBOARD (DIRECT FIX)

NRG Greenboard is an insulative walling system suitable for external cladding of timber or steel framed buildings as well as solid concrete and masonry walls. The system provides a weather resistant, seam free rendered finish in a wide range of textures and colours. It also provides continuous thermal insulation over the entire wall. Developed in Germany in 1973, these systems have been extensively used throughout Western Europe and North America where strict environmental laws are in place governing the energy efficiency of both private and commercial buildings. The system is now well established in Australia ranging from dry arid areas, to tropical and alpine regions, whilst proving energy efficiency, cost effective and flexible construction.

NRG Greenboard Energy Efficient Wall Cladding System

NRG Greenboard is an insulative walling system suitable for external cladding of timber or steel framed buildings as well as solid concrete and masonry walls. The system provides a weather resistant, seam free rendered finish in a wide range of textures and colours.

Design Freedom, NRG Greenboard -Curved walls, rounded corners, embossed patterns, raised wall areas, mouldings and other architectural features are simple to achieve and economically viable with the versatile NRG Energy Efficient Wall Cladding System.

Additional Benefits

  • Sound Insulation – 60mm Greenboard (Rw 35, Ctr – 6)
  • Environmentally Friendly – Recyclable, Re-usable Products.
  • Insect Repellent
  • Flame Retardant
Sheet Thickness
Dimensions (mm)
Insulation Values
Surface Mass kg/m²
2480 x 1200
20mm      R1.00
2480 x 1200
40mm      R1.92
2480 x 1200
60mm      R2.44
2480 x 1200
75mm      R2.83
2480 x 1200
100mm    R3.48
NRG Greenboard
Ignitability Index
Spread of Flame Index
Heat Evolved Index
Smoke Developed Index

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Jan 13


NRG Fencing

NRG Fencing looks great, its sturdy profile and attractive appearance will give any development that distinctive architectural appearance. No more costly strip footings and engaged pier construction.

NRG Fencing has less than ten components and is lightweight and easily to handle. It can be purchased in kit form or erected by our skilled team of tradespeople.

NRG Fencing is finished off with stylish and decorative Hebel post caps, top rail and post capping moulds and finished with a decorative textured paint.

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Jan 13

NRG Building Systems Certification

NRG Building Systems commenced operations, within the construction industry, in November of the year 2000. With now over 10 years of working history, NRG Building Systems has been the industry market leader, within the specialised field of lightweight EPS exterior insulative cladding systems. Attainment of the Australasian quality control certification standard ‘CODEMARK‘….. makes NRG the only EPS company to have achieved this, to date ……. together with the recent certification attainment of “BUSHFIRE ATTACK LEVEL 29” (BAL29), NRG is the leader in innovation.

NRG Greenboard and Architectural Sunhoods/Blades lead by innovation, by meeting Building Designers/Certifiers/Developers/Builders and Architects, design criteria. With 6 Star energy compliance now the construction industry benchmark, NRG is the Green- smart selection choice of building professionals.

Certificate Registration of a Company

NRG Building Systems: Registration No.: BN20414020

NRG Greenboard Trademark

Certificate regisration of Trademark Trademarks Act 1995 No.: 882450

The Schedule: Greenboard Colour Mark: Green.

Certificate Registration of a Design

Design Act 1906 No.: 158264 Application No.: 4603/2003

Statement of Monopoly: Monopoly is claimed in the shape and/or configuration of a rendering board for indefinite length as per illustrated details.

NRG Greenboard CodeMark

Insulated wall cladding Certification no.: GM-10-CM30005

Date issued: 13/05/2010

NRG Greenboard BAL29

Bush fire attack level 29 Certification Australia standard as 1530-8-1-2007.

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Jan 12

QT Design

Material Properties

Width Length Thickness Weight
900mm x 2250mm x 50mm (nom) 40kg (nom)
  • Total Square Metres per Panel = 2.0 m2.
  • Number of 50mm Panels per Pallet = 23 panels Pallet Weight:- 940kg (approx) (± 20 kg safety factor).
  • Pallet Size – 900mm Width x 2250mm Length x Max. 1350mm Height (nom).

Thermal Performance

The Thermal performance of the QT EcoSeries Wall System is calculated in accordance with AS 2627.1 Thermal Insulation of Dwellings. QT EcoSeries Wall Panel has a k-value of 0.07 w/mk.

Wall System Composition

* Note: R-Values in table have been rounded up or down to the nearest R0.5 as permitted under AS 2627.1.

Impact Resistance

QT EcoSeries Wall Panel when coated with a cement base render, can provide resistance for hard body impacts typically found under normal situations.

(Refer coating manufacturers for details).

Acoustic Performance

The QT EcoSeries Wall System was tested in accordance with AS/NZS 1276.1 for Airborne Sound Transmission and achieved STC41 and Rw41(-3;-8)(Wall Composition: 50mm QT EcoSeries Wall Panel with 30mm (nom) cavity on a 70mm x 35mm stud frame and 10mm plasterboard) CSIRO TL399. Acoustic performance can be significantly increased with the addition of bulk or acoustic insulation batts.

Fire Performance

QT EcoSeries Wall Panels when tested to AS/NZS 3837 and in accordance with BCA Specification C1.10a Section is classed as a GROUP 1 material.

Early Fire Hazard Indices (Test to AS/NZS 1530 Part 3)

Ignitability Index 0
Spread of Flame Index 0
Heat Evolved Index 0
Smoke Developed Index 0-1


In normal conditions and when maintained properly in a weatherproof condition, the cladding systems should exceed 30 years of trouble free serviceable life. When the system is installed in high corrosion zones, such as coastal locations within distances of up to 500m from the sea, particular care must be taken to ensure that openings through the cladding panels are kept to a minimum to prevent corrosive salt aerosols from entering the wall cavity and affecting metal components. (Permitted openings are base weepholes, soffit vents and openings beneath window joinery at sills).

Wildlife Attack

The panels will not support growth of micro-organisms such as fungi or bacteria and do not hold any nutritional value for ants or rodents.


Cavities form an important role in the weathertightness and life cycle of any wall system QT EcoSeries Wall Panels constructed without a cavity will void any warranty. The cavity acts as a secondary barrier against wind driven rain penetration entering the wall framing. The cavity also allows the wall to ventilate and drain which is essential for a healthy wall.

Vapour Permeable Sarking

Vapour permeable sarking must be installed to the face of the building framing prior to installation of the battens and panels. The vapour permeable sarking has two main functions, weathertightness and thermal resistance. In its weathertightness role it protects the building framing from direct contact with moisture generated by wind driven rain penetration, while allowing the condensation of moisture from interior artificial heating and cooling to escape. Thermally the vapour permeable sarking divides the wall into two separate air spaces, which significantly increases the thermal performance of the wall.


On the first horizontal course (ground level) weep holes are to be installed at centres not exceeding 1200mm immediately above any damp proof membrane or flashing. Weepholes are also required in areas where there is a possibility of moisture build up. Weepholes must be limited to 8mm in width to reduce the potential for vermin access.

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Jan 12

QT Installation and Fixing

Panel fixings

Fix the QT® EcoSeries Wall Panel onto timber battens or metal channels with galvanised 75mm x 3.15 or 3.75mm ring shank nails (timber battens only) or 10g x 75mm Class 3 (AS3566) screws (timber or steel battens) with the addition of QT® Buttons in all cases. Panel fixings must be no closer than 50mm but no further than 112mm to the horizontal panel edge and no closer than 50mm to the vertical edge, while normal fixing centres are at 225mm maximum centres. It is essential that the vertical and horizontal butt joints be bonded with polyurethane foam adhesive. Also ensure polyurethane foam adhesive is applied to all batten faces prior to the panel being pushed against them for maximum bonding to the support frame. Panels can be joined off stud, if glued to the abutting panel with polyurethane foam adhesive. QT® EcoSeries Wall Panels can span 225mm as an unsupported cantilever. Panels must span across a minimum of two channels or battens and must be installed in a horizontal stretcher bond pattern. To prevent corrosion from salt aerosols in high corrosion zones, (such as geothermal activity or within a 500m distance from the sea) upgrade fixing screws to class 4 or stainless steel (AS3566).


Timber framing must comply with AS 1684 and steel framing must be designed and constructed in accordance with AS 3623. Minimum distances from end and edge of timber framing members must be observed to avoid splitting. Stud spacing must not exceed 600mm centres. Noggings must be fitted between studs at 1350mm maximum centres.
With a 1.8 m spirit level, check for variations in the frame that are over 6 mm. Large variations negatively affect weather protection or can appear as visual defects under critical light conditions. If the frame is out of plumb, but not structurally defective, consult with the builder or contractor for remediation.

Clip and Channel System

Mechanically fix clips at 600 centres in both directions with 2 – 12g x 25mm Class 3 (AS3566) screws into face of stud. Select appropriate slot and engage channel, ensuring channel is plumb.

w x d (mm)
N1 (W28N), N2 (W33N),
N3 (W41N) and C1 (W41C)
45 x 16 or 28 600mm 600mm
N4 (W50N), N5 (W60N),
C2 (W50C) and C3 (W60C)
45 x 16 or 28 450mm 600mm

Steel Battening System – 40mm Top Hat

Fixing 40mm Metal Battens onto timber studs

Batten Spacing at 600 crs Batten Spacing
at 450 crs
0.55 BMT 0.75 BMT 0.55 BMT
N2 (W33N) 2/3.06×65 DSN 2/3.06×65 DSN 2/3.06×65 DSN
N3 (W41N) 2/3.06×65 DSN 2/3.06×65 DSN 2/3.06×65 DSN
N4 (W50N) 2/3.75×65 DSN 2/3.75×65 DSN 2/3.75×65 DSN
N5 (W60N) 2x Type 17 8-15x25mm Pan 2x Type 17 8-15x25mm Pan
N6 (W70N) 2x Type 17 8-15x25mm Pan


NOTE: For fixing 40mm top hat battens to steel framing 2/10-16×16 self drilling hex head
screws for each connection to top plate, bottom plate and nogging is all that is required for
all wind categories.

Timber Batten System

Mechanically fix H3 treated timber battens to stud with 75mm gun framing nails or 75 x 3.15 or 3.75 ring shanked nails. Galvanised nails are required in H3-CCA treated battens. H3-LOSP treated battens are considered non corrosive.

WindClassification(AS4055) TimberBattenwxd (mm) Framing StudCentresMaximum Batten FixingNail Centres(mm)
N1 (W28N), N2 (W33N),N3 (W41N) and C1 (W41C) 45 x 20 600mm 400mm
N1 (W28N), N2 (W33N),N3 (W41N) and C1 (W41C) 45 x 21-50 600mm 300mm
N4 (W50N), N5 (W60N),C2 (W50C) and C3 (W60C) 45 x 20 450mm 300mm
N4 (W50N), N5 (W60N),C2 (W50C) and C3 (W60C) 45 x 21-50 450mm 200mm

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Jan 12

QT Corners, Joints & Junction

Internal & External Corners

Internal corners can be formed by continuing the QT FullMesh around the corner or by embedding a QT CornerMesh into the base coatrender. External corners can be formed by embedding a QT CornerMesh into the base coat render or by fixing a corner bead prior to rendering.In all cases the abutting corner panels must be bonded with polyurethane foam adhesive.

Relief Joint

Relief joints are required to accommodate any structural movement or panel movement due to temperature or moisture changes. If the panel above or below an opening is less than 300mm in depth or more than 2400mm in length the panel must be articulated by creating a vertical
expansion joint to reduce and/or relieve the stress in the panel and coating system. All other corner openings must be reinforced with QT 45˚Mesh. The QT 45˚Mesh helps prevent any 45˚hairline cracks forming from the corner of any opening.

 Control joint

Control joints are designed to relieve structural movement between the wall cladding and building frame and also relieve any stress that builds up in the applied coating system. Vertical control joints are required at no greater than 5 metre centres (+ or – 500mm) in walls greater than 8 metres in length. Double studs are required at all vertical control joints. Vertical joints are best aligned with windows, doors, openings, or internal corners. Where timber floor joists are used a 15mm (nom), horizontal control joint must be provided at floor levels to allow for shrinkage and movement of the joists. 10mm control joints must also occur where the QT EcoSeries Wall Panels meet alternative wall claddings eg. Weatherboard, brickwork, etc. On gable ends, a horizontal control joint will be required at the top plate of the wall so as to separate the gable wall from the wall below. Control joints can be formed with the use of a backing rod and sealant or by the installation of uPVC expansion bead.


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