Dec 30

INTRODUCING BGC ENVIROBOARD

BGC Enviroboard is a brand new plasterboard range from BGC Plasterboard. Manufactured using more recycled content than standard plasterboard, the products within the BGC Enviroboard range do not compromise on performance, giving you an interior lining board that can meet the performance requirements you require but is also more friendly to the environment than standard plasterboard.

Environmentally conscious products are rapidly increasing in demand as more and more people consider their impact on the environment when designing buildings.

The products within the BGC Enviroboard range have been developed to meet that growing need.

BGC AND THE ENVIRONMENT

BGC Plasterboard shares the general community concern for the environment and seeks to reduce its environmental footprint in all aspects of its operations.

Natural gypsum, the principal ingredient of BGC plasterboard is mined locally at Cape Cuvier, Western Australia, which is renowned for having some of the highest purity and finer gypsum particle size in the world.

BGC Plasterboard is lined with 100% recycled paper on both sides.

BGC Plasterboard has set prudent environmental targets for waste minimisation and energy and water use, and is an active participant in environmental reporting through the Energy Efficiency, Waterwise and Emissions reporting programs.

Through strict quality control systems, production waste is minimised and wastage is recycled back into new plasterboard.

GOOD ENVIRONMENTAL CHOICE AUSTRALIA

Good Environmental Choice Australia is an environmental labelling program which aims to provide consumers with the knowledge that the product they are purchasing has met certain environmental performance standard which have been developed and assessed in line with International labelling standards.

Scientifically recognised benchmarks for environmental performance have been developed against which products and services are assessed and evaluated to determine whether the product or service should be awarded the Good Environmental Choice Label.

BGC Enviroboard products have been certified by GECA which means that the products and their manufacturing environment have been evaluated and deemed to comply with the strict
guidelines set by GECA.

BGC ENVIROBOARD COMMERCIAL

BGC Enviroboard Commercial is 13mm thick plasterboard that can be used in wall and ceiling systems, ideal for the more demanding office or commercial environment.

At least 11% of the gypsum contained within BGC Enviroboard Commercial has been recycled and BGC Enviroboard Commercial uses 100% recycled paper liner which is green in colour on the face of the board to assist with identification.

BGC Enviroboard Commercial has been designed to be slightly denser than our standard 13mm plasterboard which will assist with the acoustic performance of the board.

THICKNESS
mm
MASS kg/m2 WIDTH
mm
LENGTH
mm
13 9.5 1200 3600

BGC ENVIROBOARD ULTIMATE

BGC Enviroboard Ultimate has been developed as a total solution interior lining. It is ideally suited for a vast array of applications including areas requiring fire ratings and wet areas such as bathrooms so is ideally suited in partition situations where an FRL (Fire Resistance Level) is required in conjunction with a wet area. Ideal choice for hospitality and health/hospital applications.

As well as having excellent fire and moisture resistance properties BGC Enviroboard Ultimate also has superior acoustic performance properties and impact resistance.

At least 11% of the gypsum contained within BGC Enviroboard Ultimate has been recycled and BGC Enviroboard Ultimate uses 100% recycled paper liner which is green in colour on the face of the board to assist with identification.

THICKNESS
mm
MASS kg/m2 WIDTH
mm
LENGTH
mm
13 9.5 1200 3600

FIRE AND ACOUSTIC INFORMATION

BGC Enviroboard Ultimate has higher acoustic ratings than standard plasterboard and has excellent fire ratings.

STEEL STUDS AT 600MM MAX CENTRES

Side 1 – 1 x 13mm BGC Enviroboard Ultimate
Side 2 – 1 x 13mm BGC Enviroboard Ultimate

FRL STUD DEPTH mm 51 64 76 92 150
CAVITY INFILL Rw/Rw+Ctr
-/60/60 Nil 35/30 36/30 37/31 38/32 40/34
9kg – 50mm Polyester 43/33 44/33 45/35 46/38 48/41
30kg – 75mm Polyester 43/33 45/34 45/35 47/38 49/42
WALL THICKNESS mm 73 86 98 114 172

STEEL STUDS AT 600MM MAX CENTRES

Side 1 – 1 x 13mm BGC Enviroboard Ultimate
Side 2 – 2 x 13mm BGC Enviroboard Ultimate

FRL STUD DEPTH mm 51 64 76 92 150
CAVITY INFILL Rw/Rw+Ctr
-/60/60 Nil 40/34 41/35 41/35 42/37 45/38
9kg – 50mm Polyester 48/36 49/40 51/42 51/43 53/46
30kg – 75mm Polyester 49/36 50/40 51/43 52/43 53/47
WALL THICKNESS mm 70 83 95 111 169

STEEL STUDS AT 600MM MAX CENTRES

Side 1 – 2 x 13mm BGC Enviroboard Ultimate
Side 2 – 2 x 13mm BGC Enviroboard Ultimate

FRL STUD DEPTH mm 51 64 76 92 150
CAVITY INFILL Rw/Rw+Ctr
– /120/120 Nil 44/37 45/39 46/39 47/40 49/42
9kg – 50mm Polyester 53/45 54/46 55/48 55/48 57/51
30kg – 75mm Polyester 54/45 54/46 55/48 56/49 57/52
WALL THICKNESS mm 73 86 98 114 172

STEEL STUDS AT 600MM MAX CENTRES

Side 1 – 2 x 13mm BGC Enviroboard Ultimate
Side 2 – 2 x 13mm BGC Enviroboard Ultimate

FRL STUD DEPTH mm 148 172 204 320
CAVITY INFILL Rw/Rw+Ctr
-/120/120 Nil 50/43 51/43 52/43 55/46
9kg – 50mm Polyester – 1 side 64/55 64/56 65/57 65/59
9kg – 50mm Polyester – 2 side 65/55 65/57 66/58 66/60
30kg – 75mm Polyester – 1 side 66/56 67/57 67/59 68/61
30kg – 75mm Polyester – 2 side 69/58 70/59 70/60 71/63
WALL THICKNESS mm 200 224 256 372

STEEL STUDS AT 600MM MAX CENTRES

Side 1 – 2 x 13mm BGC Enviroboard Ultimate
Side 2 – 2 x 13mm BGC Enviroboard Ultimate

FRL STUD DEPTH mm 70 90 120 140
CAVITY INFILL Rw/Rw+Ctr
-/60/60 Nil 35/30 36/31 37/32 38/33
9kg – 50mm Polyester 40/32 41/35 41/36 41/37
30kg – 75mm Polyester 40/33 41/35 41/36 42/37
WALL THICKNESS mm 102 122 152 172

WARRANTY

BGC warrants its products to be free from defects caused by faulty manufacture or materials. If any of its products are so defective the Company will at its option, repair or replace them, supply equivalent replacement products or reimburse the purchase price. This warranty shall not apply to any loss or consequential loss suffered through or resulting from defects caused by faulty manufacture or materials. Fittings or accessories supplied by third parties is beyond the control of BGC and as such is not warranted by BGC.

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Dec 30

The Finishing Touch to Your Walls & Ceilings Cornice – Decorative and Functional

Product Description

Cornice is designed to provide a clean and pleasing finish at the junction of walls and ceilings and it’s the little touches that can make your room feel special.

The Decorative Cornice range from BGC Plasterboard adds the finishing touch to the interior décor of your new home or renovation.

Look at what Decorative Cornice can do to the appearance of a room.

Speak to your builder about upgrading from standard cove cornice to one of our Decorative Cornices.

BGC Esperance

BGC Esperance provides a timeless design suiting many different styles of home. The soft undulation of the curve provides a stylish finish to any room.

  • 75mm profile
  • An attractive wave effect
  • Available in 4.8m lengths

BGC Albany

For the bolder finish, don’t look any further than the BGC Albany decorative cornice. With dramatic steps and bold curves, BGC Albany creates an eye catching feature in a room.

  • 95mm profile
  • Bold and stylish
  • Can be retro fitted over existing 55mmm cove
  • Available in 4.8m lengths

BGC Denmark

With symmetrical lines and steps BGC Denmark provides a contemporary look for this cornice profile. The sharp angles of the steps will create a bold focal point to your room.

  • 75mm profile
  • Contemporary design
  • Available in 4.8m lengths

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Dec 30

Flexible Plasterboard CurveBoard Design Freedom and Flexibility

CurveBoard is the ideal solution for creating curves on interior walls and ceilings, giving endless design freedom and flexibility. CurveBoard provides another option in the creation of interior spaces.

Designed as a complete plasterboard wall and ceiling lining system which provides a flat, blemish free and monolithic surface which is ready for decoration. CurveBoard is designed to bend to a tight radii without prior wetting.

CurveBoard Plasterboard:

  • provides design flexibility and freedom
  • enables construction of contoured walls or ceilings
  • allows bending to small radii
  • has recessed edges on long edges to provide a continuous surface once flushed
  • saves time and money on installation requiring curved surfaces
  • lightweight and easy to install
  • can be easily applied to timber or light-steel framing
  • can be easily finished in a number of finishes

Product Description

CurveBoard flexible plasterboard enables the creation of curves on internal walls and ceilings. CurveBoard is manufactured as 6.5mm thick plasterboard enabling the plasterboard to bend to tight radii without prior wetting.

CurveBoard is purpose designed as a complete plasterboard wall and ceiling lining system which complies with the requirements of the Building Code of Australia (BCA).

CurveBoard provides a flat, blemish free, monolithic, smooth surface ready for decoration.

CurveBoard can be fixed to timber or CFS (Cold Formed Steel) light-steel framing using plasterboard screws or nails.

Applications

CurveBoard is suitable for creating curved surfaces on internal walls and ceilings.

CurveBoard is available in a sheet size of 3600mm x 1200mm x 6.5mm.

Advantages

  • Provides flexibility and freedom to construct contoured walls or ceilings
  • Allows bending to small radii
  • Has recessed edges on long edge to provide a continuous surface once flushed
  • Saves time and money on installations requiring curves
  • Lightweight and easy to install
  • Can be easily applied to timber or light-steel framing

Performance

BGC CurveBoard must be installed in accordance with the requirements of Australian Standard AS 2589:2007 – Gypsum Linings – Application and Finish.

Wetting of CurveBoard is only required when an extremely tight radii is required or where temperature and humidity are very low.

Horizontal Fix Convex

Framing

CurveBoard may be fixed to timber, CFS light-steel framing or furring channels, which satisfy the BCA requirements and which have been plumbed true and straight.

Timber – 

Timber framing must comply with the requirements of AS1684.1, AS1684.2, AS1684.3, AS1684.4, AS1720.1, AS1720.2 or the BCA.

Light-Steel –

CFS light-steel framing must be in accordance with AS4600 Cold Formed Steel Structure Code, AS3623-1993 Domestic Metal Framing and AS1397-2001. CurveBoard may be fixed to CFS steel framing but must not exceed 1.25mm BMT.

Fasteners

BGC recommends the following fasteners are used:
For Softwood – 25 x 2.8mm
For Timber Framing – 32mm x No.6 Type W
For Lightweight Steel Framing and Furring Channel up to 0.8mm thickness – 25mm x No.6 Type S Needle Point.
For Loadbearing Steel framing 0.8 to 1.2mm thickness – 25mm x No.6 Type S Drill Point
Always ensure that screw guns are adjusted to the appropriate depth.

Table 1 – Maximum Curve Radius & Minimum Curve Radius

Sheets Installed Vertically
Application Min
    Radius
Max
    Spacing
Convex 250mm 250mm 125mm
Concave 450mm 450mm 150mm

 

Sheets Installed Horizontally
Application Min
Radius
Max
Spacing
Convex 250mm 450mm 200mm
Concave 450mm 650mm 200mm

 

Installation

Fasteners should be positioned 10-15mm from edges of the sheet and the head should be slightly below the surface of the plasterboard. Care should be taken to avoid damage to the face of the sheet.

Two layers of CurveBoard  are recommended for most applications with the 2nd layer staggered by at least 200mm to avoid joint alignment.

CurveBoard may be attached horizontally or vertically depending upon the framing support and application, however BGC Plasterboard recommend fixing in a horizontal direction which enables CurveBoard to bend easier.

The maximum stud spacing will depend upon the radius required. Additional studs are usually required to support a tight radius. Please refer to diagrams for recommended spacing.

Finishing

CurveBoard can be finished with several different finishes depending upon the function of the space, lighting and the desired decorative surface required. Finish Levels 4 and 5 are used as detailed in AS2589:2007

The use of a preparatory sealer over the entire surface is recommended prior to application of finish.

Storage and Handling

Care should be taken to ensure edges of CurveBoard are not damaged when handling.
CurveBoard should be delivered to site immediately prior to installation to reduce the risk of damage.
CurveBoard should be stacked flat, up off the ground and supported on equally spaced level gluts.

Warranty BGC Plasterboard

BGC warrants its products to be free from defects caused by faulty manufacture or materials. If any of its products are so defective the Company will at its option, repair or replace them, supply equivalent replacement products or reimburse the purchase price.

This warranty shall not apply to any loss or consequential loss suffered through or resulting from defects caused by faulty manufacture or materials.

Fittings or accessories supplied by third parties is beyond the control of BGC and as such is not warranted by BGC.

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Dec 29

DURACOM FACADE SYSTEMS

THE DURACOM FACADE SYSTEM UTILISES BGC FIBRE CEMENT COATED COMPRESSED SHEETING, OFFERING THE IDEAL SOLUTION FOR CLADDING THE EXTERIOR OF LOW TO MEDIUM RISE BUILDINGS. DURACOM GIVES BUILDINGS A MODERN AND EXTREMELY DURABLE FINISH.

DURACOM SHEETING HAS A SMOOTH, FLAT SURFACE AND SQUARE EDGE FINISH WHICH IS SUITABLE FOR EXPRESSED JOINTING AND PROVIDES A FACADE SUITABLE FOR A NUMBER OF FINISHES – FROM PAINTED TO TEXTURED COATINGS.

THE DURACOM FACADE SYSTEM:

  • IS LIGHTWEIGHT AND HIGHLY DURABLE
  • IS WEATHER RESISTANT AND IS IMMUNE TO WATER DAMAGE – RATED FOR WEATHERABILITY BY CSIRO
  • USES FULLY SEALED AND BALANCED PANELS
  • PANELS WILL NOT ROT, BURN OR CORRODE
  • CAN BE EASILY DECORATED IN A NUMBER OF DESIGN FINISHES
  • FAST TO INSTALL
  • ACHIEVES BAL 40 AS REQUIRED IN AS3959:2009 – CONSTRUCTION OF BUILDINGS IN BUSHFIRE PRONE AREAS

 APPLICATIONS

Duracom™ Facade System, utilizing BGC Fibre Cement Compressed panels and Peer Industries; Cold Formed Section (CFS) steel support framing, to form a strong and durable facade cladding system.

BGC Duracom™ panels fixed to the Peer Industries CFS steel support framing, are ideally suited for versatile architectural facades and parapet applications in industrial, institutional, commercial and multi-storey residential buildings.

Duracom™ panels are designed for installation in a variety of patterns, including vertical, horizontal, brick-bond or diamond inclined.

BGC Duracom™ panels are available in 9 mm and 12 mm thicknesses and may be finished with site applied acrylic paint systems or factory applied high quality polyurethane plain, metallic and special finishes.

ADVANTAGES

  • Lightweight cladding system.
  • Readily accepts many forms of decorative finish.
  • Highly durable product.
  • Dynamic architectural style.
  • Fully sealed and balanced panels.

ENERGY EFFICIENCY CONSIDERATIONS

Energy efficiency requirements have been introduced into the Building Code of Australia (BCA) for both commercial and residential buildings.Thermal heat transfer into and out of the building envelope will effect the running cost of the building and careful consideration of thermal heat transfer needs to be addressed by the architects, engineers and building designers.Thermal bridging through steel framing will diminish the total R-Value; thermal conductance, of the wall. Thermal breaks are required for steel framed buildings and should be installed between the Peer top hat sections and the Duracom™ cladding. Thermal break tapes should have a minimum R-Value of 0.2.

PRODUCT INFORMATION

BGC Duracom™ panels are a compressed, autoclaved, cellulose fibre reinforced silica/cement panel, specially formulated and prepared to meet the requirements for use in external applications.

Duracom™ panels have a smooth flat surface and a neat square edged finish, for enhanced expressed joint facades.

BGC Fibre Cement products are manufactured to the Australian / New Zealand Standard AS/NZS 2908.2-2000Cellulose-Cement Products, Part 2: Flat sheets and Duracom™ is classified as Type A-Category 3.

FIRE RESISTANCE

BGC Compressed Fibre Cement 9 mm has been tested for and passed the Early Fire Hazard Property criteria in compliance with AS/NZS 1530.3 and AS/NZS 3837 and is deemed a Group 1 Material in accordance with the Building Code of Australia (BCA), Volume 1, Specification A2.4; Fire Hazard Properties. AS/NZS 1530.3; Early Fire Hazard Properties.

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

DURABILITY

BGC Duracom physical properties make it a very durable product.

  • Duracom panels are immune to permanent water damage in both short and long-term exposure.
  • Duracom panels will not rot or burn and are unaffected by termites, air, steam, salt and sunlight.
  • Duracom panels are not adversely affected over a temperature range of 0°C to 95°C.

THERMAL CONDUCTIVITY

  • Duracom™ Facade System conforms to the Building Code of Australia (BCA) requirements for external wall applications.
  • Duracom™ facade system has been tested to AS/NZS 4284 Testing of Building Facades.

PANEL SIZES AND MASS

 

1800 2100 2400 2700 3000
900 x x x x x
1200 x x x x x
900 x x
1200 x x

SHEET TOLERANCES

  • Width +0/-1 mm
  • Length +0/-2 mm
  • Thickness +10%/-0%
  • Diagonals difference (max) 2 mm
  • Edge straightness deviation (max) 1 mm

HANDLING AND STORAGE

  • BGC Compressed fibre cement sheeting must be stacked flat, up off the ground and supported on equally spaced (max 400mm) level gluts.
  • Sheeting must be kept dry. When stored outdoors it must be protected from the weather.
  • Care should be taken to avoid damage to the ends, edges and surfaces.
  • Sheets must be dry prior to fixing, jointing or finishing.

COASTAL AREAS

The durability of galvanised nails and screws used for external cladding in coastal or similar corrosive environments can be as low as 10 years.
For this reason BGC recommend the use of stainless steel fasteners within 1km of the coast or other large expanses of salt water.

DURACOM ACCESSORIES AVAILABLE FROM BGC

 

PRIMARY TOP HATGALVANISED STEEL 120 x 35 x 1.15mm BMT – 6000mm
120 x 35 x 1.15mm BMT – 7200mm
INTERMEDIATE TOP HATGALVANISED STEEL 50 x 35 x 1.15mm BMT – 6000mm  
50 x 35 x 1.15mm BMT – 7200mm
HORIZONTAL BACKING STRIP 1100mm  
2390mm
2990mm
EPDM FOAM GASKET STRIP 25m  

FASTENER

DURACOM TO TOP HATS

DURACOM TO TOP HATS (CONCEALED FIXING) NO.10 X 30 COUNTERSUNK SELF DRILLING SCREW.

DURACOM TO TOP HATS (EXPOSED FIXING) NO.10 X 25MM PAN HEAD SELF DRILLING SCREW

NO.10 X 25 WAFER HEAD SELF DRILLING SCREW

  • Fasteners must comply with AS 3566, with a minimum Class 3 coating.
  • All screw holes must be filled with an expoxy sealer such as Megapoxy PI, Hilti CA125 or Hilti CA273, and sand flush to provide a flat surface for the finish coating.

TOP HATS TO FRAME

CLASS 3 HEX HEAD SCREW, 12-14 X 20MM

DESIGN CONSIDERATIONS

It is recommended that project specific facade designs be undertaken by a consultant experienced in such detailing.

The design engineer should determine the wind pressure for the project and specify the layout, spacing and fixing of the top hats to the structure.

The deflection of the supporting structure should be limited span/250 for Serviceability Wind Load, or as limited by AS/NZS1170.

In areas where there is a probability of wind loading, care should be taken in the design detailing, especially around all openings, corners and other junctions, to ensure the weather resistance of the total system.

Before the Duracom™ panels and the supporting substructure is installed and fixed, particular care should be taken that all flashing and waterproofing work is complete, including all vapour permeable building wraps and damp proof coursing.

CONTROL JOINTS

In many cases, control joints will not be required as typical expressed joints permit some differential movement of the Duracom™ panels and the sub-framing.
It is recommended that the designer consider the need for control joints in the following cases:

  • Where the facade crosses a building control joint.
  • Where there is likelihood of movement in the sub-framing.
  • Continuous facades greater than 8 metres in length.
  • At a change in the structural substrate; eg masonry to steel framing.
  • Refer to P16-17, drawings 12, 13 & 14.

PANEL PREPARATION

For insitu paint finish applications, Duragrid™ panels are supplied sealed with a proprietary sealer applied during manufacture for durability.

Where it is necessary to cut sheets, cutting tools should have a dust extraction system.

Cut edges must be sealed with BGC Edge Sealer or an acrylic coating to eliminate moisture absorption.

A saw blade such as BGC Durablade with a poly crystalline diamond tip specifically designed to cut fibre cement sheets is recommended.

Ensure work area is well ventilated and wear an approved dust mask (AS/NZS1715 and AS/NZS1716) and safety glasses (AS/NZS1337).

TOP HAT SPAN / WIND LOAD PRESSURE LOAD

Structural sub-frame spacing must be installed in accordance with Peer Industries specifications. Table 4 provides guidance on the Maximum Span of Top Hat Profile.

Peer Industries Top Hat Facade System design capacities. The design capacities of Peer Facade System are in limit state format and are based on AS/NZS1170.2–2002. Wind Loads.

The Top Hat capacities have been calculated in accordance with AS/NZS4600 – cold formed steel structures.

The deflection of the Top Hats is based on serviceability factor of 0.6 x ultimate wind loads and is limited to Span/250.

The Peer Industries Top Hat section can be used for Cyclonic wind areas – region C & D based on wind pressures.(For further information, refer Peer Industries Top Hat Facade
Design Manual)

It is the responsibility of the Project Engineer to specify the connection of top hats to the support structure.Minimum 12g screw on each leg of Top Hat i.e. two 12g screws at each crossing of Top Hat & purlin.

TABLE 4 

DESIGN WIND PRESSURE KPA SINGLE SPAN DOUBLE SPAN THREE SPANS
Top Hat Top Hat Top Hat
Spacing mm Spacing mm Spacing mm
450 600 450 600 450 600
Up to0.75 MAXIMUM SPAN OF TOP HAT PROFILE
1950 1750 2450 2150 2400 2200
1.0 1750 1600 2150 1850 2200 2000
1.5 1550 1400 1750 1500 1900 1700
2.0 1400 1250 1500 1300 1900 1700
2.5 1300 1200 1350 1200 1500 1300
3.0 1200 * 1250 * 1400 *
4.0 1050 * 1050 * 1200 *

INSTALLATION

Position the Top Hats according to predetermined and marked spacings and ensure that they are vertical (check with a spirit level).

Fix the Top Hats to the Purlins using self-drilling hex head wafer screw fasteners ensuring that both legs of the Top Hats are fixed to the structural purlins or framing.

Also, ensure that the Top Hats are mounted vertical using a spirit level to check.

For inclined or diamond patterns, check that the inclined angle of the Top Hats are correct.

The Top Hats must be fixed on both legs to minimise flexing of the Top Hats.

Apply the EPDM Foam Gasket Strip to the primary 120 mm Top Hat. The seal can be applied to the mounted top hat insitu or it can be applied to the Top Hat, before it is fixed to the purlins.

Ensure that the EPDM Foam Gasket Strip is applied to the centre of the purpose designed Primary 120mm Top Hat.

Set out, pre-drill and countersink the holes in the panels to be mounted, as set out in the table hereunder.
Screw holes must be pre-drilled, allowing 1 mm clearance over diameter of screw.
Holes must be drilled using a masonry drill bit.
Do not use an impact drill.
Where screws are to be countersunk, depth must be controlled by gauge to restrict head depth to 3 mm maximum.
Refer to Table 5 for Maximum Spacing of Panel Fasteners.

TABLE 5, FASTENER SPACING FOR 9 MM AND 12 MM DURACOM PANELS

DESIGN WIND
PRESSURE.
KPA
MAX. TOP HAT
SPACING.mm
MAX.
FASTENER
SPACING AT
PANEL EDGE
SUPPORTS.
mm
MAX.
FASTENER
SPACING AT
INTERMEDIATE
SUPPORTS.
Up to 1.0 600 300 600
1.5 600 300 400
2.0 600 250 400
3.0 450 400 400
4.0 450 300 250
5.0 450 300 250
6.0 450 300 200

Fix the bottom row of boards allowing a 15 mm overlap over the EPDM seal. Leave the top row of screws in the board loose to facilitate the insertion of the backing strip to the board.

 Use the backing strip to space the vertical joint of successive boards ensuring a uniform 10 mm space between successive boards.

Prepare the backing strip for installation by applying an appropriate sealer to the bottom (9 mm) edge of the backing strip or by applying the sealer to the top edge of the panel.

Insert the backing strip behind the top of the board.Leave fasteners loose, along the top edge of the panelsto facilitate insertion of backing strip.

Backing strip joint details – the backing strip has been designed to overlap whilst retaining a flush fit behind the board. Backing strip joints must overlap over a Top Hat and be sealed with two (2) beads of sealant to ensure a weather resistant joint.

Overlapping backing strip joint with two (2) beads of appropriate sealant, in position over
Top Hat section.

Installation of the next layer of board – Apply a bead of the appropriate sealer to the top of the backing strip and then rest a pre-drilled panel on the top of the horizontal backing strip.

INSTALLATION DETAILS

The architectural intent and details of buildings vary from one designer to the next, and the variety of facade details would be impossible to catalogue.

The detail diagrams following are intended to assist the designer in achieving a high quality weather resistant Duracom™ Facade.

The designer should not digress from the specification set out in this manual.

PENETRATIONS, OPENINGS, WINDOWS AND DOORS

There are numerous varieties of penetrations, openings, and windows and door treatments available, and each weather proofing detail will be dependent on the material, style and manufacturer’s specifications.

Adequate weather proofing of the opening application

must be considered by the building designer, in conjunction with the penetration, window and door manufacturer. The diagrams below are a guide only and the designer should consult with the appropriate manufacturers for the detail design to ensure adequate weather proofing.

CONTROL JOINT DETAILS

Structural movement vertical and horizontal control joints are required to match existing structural control joints and should pass through the facade.

The Duracom™ system utilises a flat galvanised 0.75 mm BMT steel strip.

This strip bridges the Top Hats on each side of the control joint and is riveted to one side only.

Sealant is applied between the strip and the Duracom™ panel creating a floating weather resistant seal that allows for joint expansion and contraction.

THERMAL BREAK DETAILS

Thermal breaks are required for steel framed buildings, in walls enclosing habitable and or useable spaces. Careful consideration of thermal heat transfer and the position of thermal breaks need to be addressed by the architects, engineers and building designers.

Thermal breaks should be installed between the Peer Top Hat sections and the Duracom™ cladding.

Balustrades, parapets, and other non-enclosing wall elements may not require thermal bridging, except where the possibility of high thermal heat transfer exists through the steel CFS sections to the main structural steel element of the building.

MOISTURE MANAGEMENT

Designers, specifiers and builders have a duty of care to identify moisture-associated risks with any individual building design.

Wall construction design should consider both the interior and exterior environments of the building to effectively manage moisture. Special consideration should be given to buildings that are in extreme climates or at higher risk of wind driven rain.

In addition, all wall openings, penetrations, junctions, connections, window heads, sills and jambs must incorporate appropriate flashing for waterproofing. All other components, materials and installation methods used to manage moisture in walls should comply with the relevant standards of the Building Code of Australia (BCA).

WARRANTY BGC FIBRE CEMENT PANELS

BGC warrants its products to be free from defects caused by faulty manufacture or materials. If any of its products are so defective the Company will at its option, repair or replace them, supply equivalent replacement products or reimburse the purchase price.

This warranty shall not apply to any loss or consequential loss suffered through or resulting from defects caused by faulty manufacture or materials.

Fittings or accessories supplied by third parties is beyond the control of BGC and as such is not warranted by BGC.

WARRANTY ON PEER INDUSTIES METAL COMPONENTS

For warranty information on the Peer Industries metal components specified in this design manual please contact Peer Industries on 1300 725 675 from anywhere in Australia.

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Dec 29

NULINE WEATHERBOARD

NULINE IS A UNIQUE, WEATHERBOARD-STYLE CLADDING SYSTEM THAT LOOKS LIKE REAL TIMBER WEATHERBOARD, BUT DOESN’T COME WITH ANY OF THE MAINTENANCE ASSOCIATED WITH NATURAL TIMBER WEATHERBOARD CONSTRUCTIONS.

NULINE IS A UNIQUE, WEATHERBOARD-STYLE CLADDING SYSTEM THAT LOOKS LIKE REAL TIMBER WEATHERBOARD, BUT DOESN’T COME WITH ANY OF THE MAINTENANCE ASSOCIATED WITH NATURAL TIMBER WEATHERBOARD CONSTRUCTIONS.

THE NULINE WEATHERBOARD EXTERNAL CLADDING SYSTEM:

  • FEATURES A LEVEL JOINING SYSTEM, WHICH GIVES A SEAMLESS FINISH
  • IS QUICK AND EASY TO CUT, HANDLE AND INSTALL
  • COMES IN TWO DIFFERENT PROFILESOFFERING ‘DESIGN’ CHOICE
  • IS DURABLE
  • WON’T ROT OR DECAY
  • IS LOW MAINTENANCE
  • OFFERS A RANGE OF ATTRACTIVE CORNER AND END FINISHES
  • IS ENVIRONMENTALLY FRIENDLY
  • IS FIRE RESISTANT
  • IS TERMITE RESISTANT
  • ACHIEVES BAL 40 AS REQUIRED IN AS3959:2009 – CONSTRUCTION OF BUILDINGS IN BUSHFIRE PRONE AREAS.
  • QUICK AND SIMPLE TO INSTALL USING MANUAL NAILING, GUN NAILING OR SCREW FIXING.

PRODUCT DESCRIPTION

NuLine Weatherboards are a general-purpose fibre cement cladding for external applications.
They are manufactured as planks, which are reminiscent of traditional weatherboards both in
appearance and installation methods.

NuLine Weatherboards are not subject to timber rot, decay, or white ant damage and will not support combustion. The result is a safer, more durable cladding that requires minimum maintenance.

NuLine is available in a smooth finish. At 14 mm thick, NuLine has the strength to withstand the rig-ours of all normal family activities.

ADVANTAGES

  • Features a level joining system utilising a biscuit joiner
  • Quick and easy to cut, handle and install
  • Durable and low maintenance
  • Won’t rot or decay
  • Environmentally friendly

ENERGY EFFICIENCY CONSIDERATIONS

the Building Code of Australia (BCA) for both commercial and residential buildings. Thermal heat transfer into and out of the building envelope will effect the running cost of the building
and careful consideration of thermal heat transfer needs to be addressed by the architects, engineers and building designers.

Thermal bridging through steel framing will diminish the total R-Value; thermal conductance, of the wall. Thermal breaks are required for steel framed buildings and should be installed
between the Peer top hat sections and the Duracom cladding. Thermal break tapes should have a minimum R-Value of 0.2.

PRODUCT INFORMATION

NuLine Weatherboards are manufactured from Portland cement, finely ground silica, cellulose fibres and water. Planks are cured in a high-pressure steam autoclave to create a durable, dimensionally stable product.

NuLine Weatherboard fibre cement products are manufactured to conform to the requirements
of AS2908.2 Cellulose-Cement Products and are classified as Type A Category 3 for external use.

FIRE RESISTANCE

BGC Fibre Cement products have been tested in accordance to Australian Standard AS1530.3 – 1989.

These tests deemed the following Early Fire Hazard Indices:

  • Ignition Index                                  0
  • Spread of Flame Index                  0
  • Heat Evolved Index                        0
  • Smoke Developed Index                0-1

PANEL SIZES AND MASS

Nuline weatherboard panels are available in the following sizes.
THICKNESS
mm
MASS
KG/M2
WIDTH
mm
LENGTH
mm
14 4.13 175 Smooth 4200
4.83 205 Smooth 4200

Sizes available in Square and Bullnose profiles.

PLANK TOLERANCES

  • Width +0/-1 mm
  • Length +0/-2 mm
  • Thickness +10%/-0%
  • Diagonals difference (max) 2 mm
  • Edge straightness deviation (max) 1 mm

PROFILES

HEALTH AND SAFETY

BGC NuLine is manufactured from cellulose fibre, finely ground sand, Portland cement and additives. As manufactured, the product will not release airborne dust, but during drilling, cutting and sanding operations cellulose fibres, silica and calcium silicate dust may be released.

Breathing in fine silica dust is hazardous and prolonged exposure (usually over several years) may cause bronchitis, silicosis or cancer.

AVOID DUST INHALATION

When cutting planks, work in a well-ventilated area and use the methods recommended in this literature to minimise dust generation. If using power tools wear an approved (P1 or P2) dust mask and safety glasses.

These precautions are not necessary when stacking, unloading or handling fibre cement products.

QUANTITIES READY RECKONER

Table 1 is provided to assist in calculating the number of planks required to cover a given wall height.

For triangular areas such as Gable ends, halve the quantities derived for a rectangular wall then add 10% to cover off cuts.

Table 1 Plank Course Ready Reckoner
PLANK COURSES WALL HEIGHT
175 mm PLANK30 mm OVERLAP 205 mm PLANK30 mm OVERLAP
1 175 205
2 320 380
3 465 555
4 610 730
5 755 905
6 900 1080
7 1045 1255
8 1190 1430
9 1335 1605
10 1480 1780
11 1625 1955
12 1770 2130
13 1915 2305
14 2060 2480
15 2205 2655
16 2350 2830
17 2495 3005
18 2640 3180
19 2785 3355
20 2930 3530

CUTTING AND DRILLING

Nuline planks may be cut to size on site. If using power tools for cutting, drilling or sanding they must be fitted with appropriate dust collection devices or alternatively an approved (P1 or P2) dust mask and safety glasses shall be worn. It is recommended that work always be carried out in a well-ventilated location.

The most suitable cutting methods are:

DURABLADE

180mm Diameter. This unique cutting blade is ideal for cutting Fibre Cement. Can be fitted to a 185mm circular saw, ie Makita or similar. Please ensure safe working practices when using.

NOTCHING

Notches can be made by cutting the two sides of the notch. Score along the back edge then snap upwards to remove the notch.

DRILLING

Use normal high-speed masonry drill bits. Do not use the drill’s hammer function. For small round holes, the use of a hole-saw is recommended. For small rectangular or circular penetrations, drill a series of small holes around the perimeter of the cut out. Tap out the waste piece from the sheet face while supporting the underside of the opening to avoid damage. Clean rough edges with a rasp.

Large rectangular openings are formed by deeply scoring the perimeter of the opening. Next, form a hole in the centre of the opening (refer method above) then saw cut from the hole to the corners of the opening. Snap out the four triangular segments. Clean rough edges with a rasp. (see method above) then saw cut from the hole to the corners of the opening. Snap out the four triangular segments. Clean rough edges with a rasp.

HANDLING AND STORAGE

NuLine planks must be stacked flat, up off the ground and supported on equally spaced (max 300mm) level gluts.

Planks must be kept dry. When stored outdoors it must be protected from the weather. Care should be taken to avoid damage to the ends, edges and surfaces. Planks must be dry prior to fixing, jointing or finishing.
COASTAL AREAS

The durability of galvanised nails and screws used for external cladding in coastal or similar corrosive environments can be as low as 10 years.

For this reason BGC recommend the use of stainless steel fasteners within 1km of the coast or other large expanses of salt water.

ACCESSORIES AVAILABLE FROM BGC

INTERNAL ALUMINIUM CORNER 2700mm  
EXTERNAL ALUMINIUM CORNER 2700mm  
INTERNAL OBTUSE ANGLE 2700mm  
EXTERNAL OBTUSE ANGLE 2700mm  
J MOULD 2700mm  
STARTER STRIP 2700mm  
JOINERS Pack of 60  

FASTENERS

NuLine must be fastened at every stud (or batten for vertical installations).

Fasteners must not be placed closer than 12 mm from the plank edge.

NULINE TO TIMBER FRAME

No. 65 x 2.8mm galvanised flat head nails

/ For renovation projects where the original cladding is not removed, longer nails (70 x 2.8mm or longer) will be required.
/ Care is needed when using nail guns. If variability occurs the gun should be set to under drive and the nails tapped home with a hammer.

Nails must not be driven closer than 50 mm from the plank end.
Nails or fasteners can be located 20 mm minimum from the plank end if the fastener hole is predrilled. Except for straight joints, planks must be fixed a maximum of 100 mm from the
plank end.

NULINE TO STEEL FRAME

No. 8 x 40mm galvanised self embedding head screws

/ Screw fasteners should be located 35mm from the plank edge.

CONSTRUCTION DETAILS

FRAMING

In general, the layouts presented in this publication will be satisfactory for low-rise (up to two storey) domestic and light commercial buildings in non-cyclonic regions.

Buildings in cyclonic regions, high-rise buildings, large industrial and commercial complexes will generally require a specific design to be undertaken. The relevant design details pertaining to NuLine for various wind classifications, are presented in Figure 2.

NuLine is suitable for installation on either timber or lightweight steel framing.

Figure 2. WALL AND GABLE END CLADDING

TIMBER FRAMING

Timber framing must be dry prior to fixing NuLine. If planks are fixed to ‘wet’ framing, problems may occur at a later date due to excessive timber shrinkage.

It is strongly recommended that kiln dried framing is used.

LIGHT WEIGHT STEEL FRAMING

NuLine may be fixed directly to lightweight steel framing. The steel framing must not exceed 1.6 mm in thickness.

When rigid steel framing is used, it must be battened out with either timber or lightweight steel battens prior to fixing NuLine Weatherboards.

TIMBER BATTENS

Timber battens must have a minimum thickness of 40 mm to allow adequate nail penetration.

STEEL BATTENS

Steel battens are typically 50mm wide on the face x 35mm deep x 0.75mm thick.
FRAMING CENTRES

GENERAL

Figure 3 depicts the general framing requirements for NuLine installed horizontally.

SARKING

The installation of a vapour permeable sarking between NuLine and the framing is recommended. The building’s internal pressure will generally be less than the external air
pressure under windy conditions, which will tend to draw water through the planking, flashing and seals if sarking is not used.

Use of a reflective sarking will enhance the insulation properties of the cladding system (eg. Gladiator Perforated Wall Wrap or Sisalation 499) or equivalent.

FIGURE 3 HORIZONTAL FIXING

INSTALLATION

/ Calculate the number of NuLine Weatherboards required using the Plank Course Ready Reckoner as detailed in Table 1, on page 5.

/ Fix all flashings to wall openings and external and internal corners. See figures 8a and 8b for corner details using BGC aluminium angles.

/ Fix a starter strip (timber or a strip of plank) to the bottom plate to ensure the first row of NuLine Weatherboards are packed out to the correct angle. This starter strip is to be continuous around the perimeters of the building and to overhang the slab edge by 50mm. See figure 5 for this detail.

/ Set a horizontal datum line around the perimeter of the building using a string line or spirit level. Fix guide nails/screws along this line to act as a stop for the correct placement of the first course of NuLine Weatherboards.

/ NuLine is best suited to be joined off the studs using a factory cut biscuit. See figures 3 and 4 for these details.

/ Commence fixing the bottom course of plank from an external corner. Fasten the bottom edge of the plank to each stud through the starter strip. Ensure that the plank is level and flush with the corner. Do not nail home the corner fixing at this time.

/ Fit the plank joiner (biscuit) to the end of the plank and apply a bead of sealant then continue fixing the bottom course.

/ Install extruded aluminium corners, before nailing home the corner fixing. See figure 7 for this detail.

/ The plank must overlap a minimum of 30mm, and before fixing the second row of planks calculate the overlap so a near full width of plank will finish at the top of the building. Using a piece of timber or plank, fabricate a lap gauge to ensure that the plank coverage is uniform.

/ Fixings must not be driven closer than 50mm from the end of the plank. For fixings between 20mm – 50mm from the end, the plank must be predrilled with a 3mm hole.

FIGURE 4 PLANK JOINT USING BISCUIT

INSTALLATION

FIGURE 5 STARTER PLANK

FIGURE 6A FASTENER DETAIL TIMBER FRAMING

FIGURE 6B FASTENER DETAIL STEEL FRAMING

FIGURE 6C HALF HEIGHT TIMBER FRAME

FIGURE 7A EXTERNAL CORNER DETAIL

FIGURE 7B INTERNAL CORNER

PLANK OVERLAPS

Planks must overlap the previous course by a minimum of 30 mm. Higher overlaps may be used to improve weather proofing (particularly when sarking is not used) or to match the wall
height to the plank width. See Table on page 5.

CUTTING AROUND OPENINGS

When cutting planks around window or door openings, a 5 mm nominal clearance must be provided at the jamb, head and sill.

Plank courses should be set out so that as near to a full plank width as possible remains under a window, or similar openings. See Figure 9.

A plank joint at one end for small openings and both ends of longer openings will make installation easier and eliminate breakages.

Flashing and mouldings must be installed as appropriate to prevent ingress of water into the framing.

FIGURE 8 WINDOW AND DOOR OPENINGS

PAINTING

To enhance both the appearance and performance of NuLine, BGC recommend that at least two coats of a 100% acrylic exterior grade paint be applied. The paint manufacturer’s ecommendation on application and maintenance of the paint system should be followed.

Note: BGC recommend the use of a roller or brush application for best results.

MAINTENANCE

NuLine when used in accordance with this literature requires no direct maintenance.

To guard against water penetrating the structure and damaging the framework, annual inspections of the cladding system should be carried out. Check flashing, sealant joints and
paint work.

Flashing and sealants must continue to perform their design function.

Damaged planks should be replaced as originally installed.Paintwork should be maintained in accordance with the manufacturer’s instructions.

INSULATION

NuLine cladding will require insulation to be installed in some regions that have thermal loss regulations.

Insulation should be installed in accordance with the manufacturers instructions.

Insulation bats must fit snugly between framing members to minimise heat loss.

FREEZE THAW

NuLine subject to freeze / thaw conditions must be painted.

NuLine should not be used in situations where it will be in direct contact with snow or ice for prolonged periods.

THERMAL BRIDGING

Thermal breaks are required for steel framed buildings, In walls enclosing habitable and or useable spaces. Careful consideration of thermal heat transfer and the position of thermal breaks need to be addressed by the architects, engineers and building designers.

Balustrades, parapets, and other non-enclosing wall elements may not require thermal bridging, except where the possibility of high thermal heat transfer exists through the steel CFS
sections to the main structural steel element of the building.

Thermal breaks should be installed between the Nuline weatherboards and the steel framing.

For further information refer to section 3.12.1.4 of the BCA. Thermal bridging is to be no less that R 0.2

WARRANTY

BGC warrants its products to be free from defects caused by faulty manufacture or materials. If any of its products are so defective the Company will at its option, repair or replace them, supply equivalent replacement products or reimburse the purchase price.

This warranty shall not apply to any loss or consequential loss suffered through or resulting from defects caused by faulty manufacture or materials.

Fittings or accessories supplied by third parties is beyond the control of BGC and as such is not warranted by BGC.

Find Out More

Dec 28

DURAGRID FACADE SYSTEMS RESIDENTIAL

THE DURAGRID FACADE SYSTEM UTILISES BGC FIBRE CEMENT SHEETING, OFFERING THE IDEAL SOLUTION FOR CLADDING THE EXTERIOR OF LOW TO MEDIUM RISE HOMES. DURAGRID GIVES BUILDINGS A MODERN AND EXTREMELY DURABLE FINISH.

DURAGRIDSHEETING HAS A SMOOTH, FLAT SURFACE AND SQUARE EDGE FINISH WHICH IS SUITABLE FOR EXPRESSED JOINTING AND PROVIDES A FACADE SUITABLE FOR A NUMBER OF FINISHES – FROM PAINTED TO TEXTURED COATINGS.

THE DURAGRID FACADE SYSTEM:

  • IS LIGHTWEIGHT
  • IS HIGHLY DURABLE
  • PANELS WILL NOT ROT, BURN OR CORRODE.
  • PANELS ARE NOT AFFECTED BY TERMITES, AIR, STEAM, SALT OR SUNLIGHT.
  • CAN BE EASILY DECORATED IN A NUMBER OF DESIGN FINISHES.
  • QUICK AND SIMPLE TO INSTALL USING MANUAL NAILING, GUN NAILING OR SCREW FIXING.
APPLICATIONS
Duragrid Facade system utilises BGC fibre cement panels and graded, primed timber or steel battens to form a strong and durable facade cladding system.

BGC Duragrid is ideally suited for versatile architectural applications in domestic and multi storey residential buildings.

Duragrid panels are designed for installation in a variety of patterns, including vertical, horizontal, brick-bond or diamond inclined.

BGC Duragrid panels are available in 9mm thickness and may be finished with site applied acrylic paint systems or a factory applied high quality polyurethane plain finish. These may need alternative fixing methods. Please contact your BGC office for advice.

NOTE: The fitting of the Duragrid Facade system should only be attempted by a professional contractor. Your local BGC Fibre Cement office can provide you with a list of recommended Duragrid installers.

ADVANTAGES

  • Lightweight cladding system
  • Readily accepts many forms of decorative finish
  • Highly durable
  • Dynamic architectural style
  • Face sealed panels

ENERGY EFFICIENCY CONSIDERATIONS

Energy efficiency requirements have been introduced into the Building Code of Australia (BCA) for both commercial and residential buildings. Thermal heat transfer into and out of the building envelope will effect the running cost of the building and careful consideration of thermal heat transfer needs to be addressed by the architects, engineers and building designers.

PRODUCT INFORMATION

BGC Duragrid panels are an autoclaved, cellulose fibre reinforced silica/cement panel, specially formulated and prepared to meet the requirements for use in external applications. Duragrid panels have a smooth flat surface and a neat square edged finish, for enhanced expressed joint facades.

BGC Fibre Cement products are manufactured to the Australian / New Zealand Standard AS/NZS 2908.2-2000 Cellulose-Cement Products, Part 2: Flat sheets and Duragrid is classified as Type A Category 3.

FIRE RESISTANCE

BGC Fibre Cement 9mm has been tested for and passed the Early Fire Hazard Property criteria in compliance with AS/NZS 1530.3 and AS/NZS 3837 and is deemed a Group 1 Material in accordance with the Building Code of Australia (BCA), Volume 1, Specification A2.4; Fire Hazard Properties. AS/NZS 1530.3; Early Fire Hazard Properties.

  • Ignition Index
0
  •  Spread of Flame Index
0
  •  Heat Evolved Index
0
  •  Smoke Developed Index
0-1

DURABILITY

BGC Duragrid physical properties ensure it’s durability in exposed applications.

  • Duragrid panels are immune to permanent water damage in both short and long-term exposure.
  • Duragrid panels will not rot or burn and are unaffected by termites, air, steam, salt and sunlight.
  • Duragrid panels are not adversely affected over a temperature range of 0°C to 95°C.

Vapour permeable sarking must be installed under the timber or steel batten in ccordance with the AS/NZS 4200.2 – ‘Pliable building membranes and underlays – Installation’ and the sarking manufacturers’ guidelines. The sarking should have the following properties:

  • Vapour barrier – low or medium
  • Water barrier – high

Vapour permeable sarking is used to prevent moisture ingress by acting as a drainage plane whilst enabling water vapour build up from inside the frame to escape.

THERMAL CONDUCTIVITY

Duragrid panels have relatively low thermal conductivity: R-value. At Equilibrium Moisture content the approximate R-Value of Duragrid is;- 0.55 W/m°C.

PANEL SIZES AND MASS

Duragrid panels are available in the following sizes
THICKNESS
mm
MASS
KG/M2
WIDTH
mm
LENGTH mm
1190 1790 2390 2990
9 11.7 590 x
890 x
1190 x x

SHEET TOLERANCES

  • Width +0/-1mm
  • Length +0/-2mm
  • Thickness +10%/-0%
  • Diagonals difference (max) 2mm
  • Edge straightness deviation (max) 1mm

HANDLING AND STORAGE

BGC Duragrid must be stacked flat, up off the ground and supported on equally spaced (max 400mm) level gluts. Care should be taken to avoid damage to the ends, edges and surfaces.

  • Sheets must be kept dry. When stored outdoors it must be protected from the weather. Sheets must be dry prior
  • to fixing, jointing or finishing.

COASTAL AREAS

The durability of galvanised nails and screws used for external cladding in coastal or similar corrosive environments can be as low as 10 years.

For this reason BGC recommend the use of stainless steel fasteners within 1km of the coast or other large expanses of salt water.

ACCESSORIES AVAILABLE FROM BGC

DURABATTEN-PRIMED, GRADED TIMBER 19 x 70 x 3000mm  
19 x 70 x 2700mm
HORIZONTAL BACKING STRIP 1190mm  
2390mm
2990mm
CAVITY VENT STRIP uPVC  
19 x 2700mm
SEALANT Sika 11FC or similar  
COUNTER SINKER Countersinking Tool  
Tungsten Carbide

FASTENERS

DURABATTEN TO FRAME

DURABATTEN TIMBER TO TIMBER FRAME
Class 3 Corrosion resistant Ring shank nail – 2.8 x 65mm

DURABATTEN TIMBER TO STEEL FRAME
Builders Class 3, 8 x 35mm Wingtek Self Embedding Head Screw, 8 x 40mm Wingtek Self Embedding Head Screw

DURABATTEN STEEL TO STEEL FRAME
Class 3 Hex Head Screw, 12-14 x 20mm

DURAGRIDT TO DURABATTEN

DURAGRID DURABATTEN TIMBER
C25 304 Stainless Steel Brads

2.8 x 30mm Fibre Cement nail

8 x 10 x 25mm Class 3 Countersunk wood screw

DURAGRID TO DURABATTEN STEEL
No.8 x 30mm Countersunk self drilling

FASTENERS

Select fasteners with suitable durability for the prevailing conditions. Please consult your supplier for:

  • Minimum requirements Class 3
  • Stainless steel may be required in some applications

All screw holes must be filled with an epoxy sealer such as Megapoxy P1, Hilti CA125 or Hilti CA273 and sanded flush to provide a flat surface for finish coating.

PRE COUNTERSINK

When using screws to fasten Duragrid, pre countersinking is required so that the fastener is 2mm under the sheet surface for filling with Epoxy filler.

DESIGN CONSIDERATIONS

The designer should determine the wind pressure for the project and specify the layout, spacing and fixing of the Durabatten to the structure.

The deflection of the supporting structure should be limited to span/250 for Serviceability Wind Load, or as limited by AS/NZS1170.

In areas where there is a probability of wind loading, care should be taken in the design detailing, especially around all openings, corners and other junctions, to ensure the weather resistance of the total system.

Before the Duragrid panels and the supporting substructure are installed, particular care should be taken to ensure that all flashing and waterproofing work is complete, including all vapour permeable building wraps and damp proof coursing.

CONTROL JOINTS

In many cases, control joints will not be required as typical expressed joints permit some differential movement of the Duragrid panels and the sub-framing.

It is recommended that the designer consider the need for control joints in the following cases:

  • Where Duragrid crosses a building control joint.
  • Where there is likelihood of movement in the sub-framing.
  • Continuous lengths greater than 8 metres in length.
  • At a change in the structural substrate; eg masonry to steel framing.

Structural movement vertical and horizontal control joints are required to match existing structural control joints and should pass through the facade.

GROUND CLEARANCE

Maintain a minimum 150mm clearance to earth or as required by local building regulations.

GROUND CLEARANCE & FOUNDATION DETAIL

PANEL PREPARATION

For insitu paint finish applications, Duragrid panels are supplied sealed with a proprietary sealer applied during manufacture for durability.

Where it is necessary to cut sheets, cutting tools should have a dust extraction system.

Cut edges must be sealed with BGC Edge Sealer or an acrylic coating to eliminate moisture absorption.

A saw blade such as BGC Durablade with a poly crystalline diamond tip specifically designed to cut fibre cement sheets is recommended.

Ensure work area is well ventilated and wear an approved dust mask (AS/NZS1715 and AS/NZS1716) and safety glasses (AS/NZS1337).

BACKING STRIP INSTALLATION & SEALING

At the horizontal joints between the Duragrid panels, the Horizontal Backing Strip should be bonded to the back of the Duragrid panel to form a socket to which the Duragrid panels
above are fixed over.

Set the backing strip 2mm from the edge of the Duragrid panel. Seal the cut edge with BGC Edge Sealer.

The backing strip can be fixed using:

  • SIKA 11FC. Ensure that the sealant has cured fully before panel installation.
  • 3m 12.7mm VHB4901 double sided tape.

The contact surfaces to be cleaned with 3M HIPA 300 Adhesive cleaner.

NOTE: SIKA 11FC is the preferred option for fixing the backing strip.

NOTE: Ensure the sealant fills the void in the back of the Horizontal Backing Strip to prevent moisture ingress.

SEALANT (Preferred Option for Optimal Adhesion and Sealing ) – FRONT VIEW

BACKING STRIP TAPE – FRONT VIEW

BACKING STRIP SEALANT – REAR VIEW 

FASTENER SPACING – RESIDENTIAL

FIXING DURAGRID TO DURABATTEN
Fix cladding to batten via a continuous 6mm bead of SIKAFLEX 11FC polyurethane adhesive to all contact surfaces and brad nails at 200 centres.

FIXING DURABATTEN TO TIMBER WALL FRAMES
Spans should be approximately equal (within 25%)
Battens can be installed either ON stud (batten fixed directly to stud) or OFF stud (batten fixed to noggin)
Where battens are fixed OFF stud, noggins are to be evenly spaced with maximum centres of 800mm.
Fix timber batten to timber wall frame with:

ON-stud
1Nº 65 x 2.87 Ring Shank nails @ 300 centres.

OFF-stud
Fix timber battens to noggins with:

1 x 65 x 2.87 Ring Shank nails.
C1 (max 1.61kN pullout load)
Fix timber battens to noggins with:
1 x 65 x 2.87 Ring Shank nails. Or: 8-15 x 40mm screws.

FIXING TIMBER NOGGINS TO TIMBER STUDS
Where noggins support battens, noggins must be securely fixed to studs.
Noggins should not be spaced more than 800mm.

N1-N3
Fix noggins to studs via minimum 2Nº ø3.75 nails at each end.

BATTEN SPAN/WIND PRESSURE LOAD

Wind
 Classification
 AS4005
Durabatten
 Off Stud
 Fix
Durabatten
& Stud
Spacing
Durabatten Fixing Centres Durabatten Span Duragrid Fixing Centres
N1, N2, N3 OK 600 300 850 200
N4, N5 No 450 200 n/a 200
N6 No 300 200 n/a 150
C1 OK 450 200 800 200
C2 No 450 200 n/a 200
C3 No 450 200 n/a 200
C4 No 300 200 n/a 150

NOTE: Durabatten can be fixed off stud in N1, N2, N3, C1 wind classification areas.

Duragrid can be fixed with C25 304 stainless brads and SIKA 11FC as specified in N1, N2, N3, C1, C2 locations.

Duragrid should be screw fixed in other locations.

FRAMING

Ensure that the frame is square and work from a central datum line. The frame must be straight and true to provide a flush face to receive the panels.

BGC recommend a maximum tolerance of 3mm-4mm in any 3000mm length of frame. Duragrid will not straighten excessively warped or distorted frames and any warping may still be visible after Duragrid is applied.

FRAME STRAIGHTNESS

Durabatten can be fixed on stud or off stud –
Refer to Span Table 1. Off stud fixing is restricted to low wind areas and noggings are required at maximum 800mm centres – Refer to span tables in all instances.

The vertical expressed joins must coincide with the centre line of the Durabatten. Stud centres may have to be designed to coincide with express joins.

TIMBER FRAME
Use of a timber frame must be in accordance with AS1684
Residential timber-framed construction and the framing manufacturers’ specifications.

Use only seasoned timber. Do not use unseasoned timber as it is prone to shrinkage and can cause sheets and frames to move up.

“Timber used for house construction must have the level of durability appropriate for the relevant climate and expected service life conditions including exposure to insect attacks or
to moisture which could cause decay” – Reference AS 1684.2

Stud framing members must be a minimum of 70x35mm.

DURABATTEN INSTALLATION TO TIMBER

TIMBER DURABATTEN
Install over Timber Durabatten either off stud or on stud.

ON STUD

OFF STUD

BATTEN JOINING

INSTALLATION DETAILS

The architectural intent and details of buildings vary from one designer to the next, and the variety of details would be impossible to catalogue.

The detail diagrams following are intended to assist the designer in achieving a high quality weather resistant facade.

The designer should not digress from the specification set out in this manual.

PANEL POSITION – FRONT VIEW

Use the backing strip as a temporary gauge to space the vertical joint of successive boards ensuring a uniform 10mm space between successive panels.

INSTALLATION DETAILS

PANEL INSTALLATION

TYPICAL SEALANT APPLICATION

FASTENER SPACING

Duragrid panels are to be fixed with a continuous 6mm bead of SIKA 11FC or similar polyurethane sealant/adhesive to all contact surfaces with required fasteners at specific centres.

Duragrid panels should be sealed and fixed 1 panel at a time. Only apply sealant to the contact surfaces of the next panel to be fixed.

SOFFIT DETAIL

FOUNDATION DETAIL

INTERNAL CORNER DETAIL

EXTERNAL CORNER DETAIL

FASTENER POSITION

ENCLOSED BALUSTRADE/PARAPET WALL

PENETRATIONS, WINDOW & DOOR OPENINGS

There are numerous varieties of penetrations, openings, and windows and door treatments available, and each weather proofing detail will be dependent on the material, style and manufacturer’s specifications.

Adequate weather proofing of the opening application must be considered by the building designer, in conjunction with the penetration, window and door manufacturer.

The following diagrams are a guide only and the designer should consult with the appropriate manufacturers for the detail design to ensure adequate weather proofing.

WINDOW JAMB

WINDOW HEAD

WINDOW SILL

THERMAL BREAKS

Thermal breaks are required for steel framed buildings, in walls enclosing habitable and or usable spaces. Careful consideration of thermal heat transfer and the position of thermal breaks need to be addressed by the architects, engineers and building designers.

Thermal breaks should be installed between the steel Durabatten sections and the Duragrid cladding.

Balustrades, parapets, and other non-enclosing wall elements may not require thermal bridging, except where the possibility of high thermal heat transfer exists through the steel CFS sections to the main structural steel element of the building.

MOISTURE MANAGEMENT
Designers, specifiers and builders have a duty of care to identify moisture-associated risks with any individual building design.

Wall construction design should consider both the interior and exterior environments of the building to effectively manage moisture. Special consideration should be given to buildings that are in extreme climates or at higher risk of wind driven rain.

In addition, all wall openings, penetrations, junctions, connections, window heads, sills and jambs must incorporate appropriate flashing for waterproofing. All other components, materials and installation methods used to manage moisture in walls should comply with the relevant standards of the Building Code of Australia (BCA).

WARRANTY

BGC warrants its products to be free from defects caused by faulty manufacture or materials. If any of its products are so defective the Company will at its option, repair or replace them, supply equivalent replacement products or reimburse the purchase price.

This warranty shall not apply to any loss or consequential loss suffered through or resulting from defects caused by faulty manufacture or materials.

Fittings or accessories supplied by third parties are beyond the control of BGC and as such is not warranted by BGC.

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Dec 27

LIGHT COMMERCIAL & RESIDENTIAL STEEL FRAMED BUILDINGS

THE DURAGRID FACADE SYSTEM UTILISES BGC FIBRE CEMENT SHEETING, OFFERING THE IDEAL SOLUTION FOR CLADDING THE EXTERIOR OF LOW TO MEDIUM RISE HOMES. DURAGRID GIVES BUILDINGS A MODERN AND EXTREMELY DURABLE FINISH.

DURAGRID SHEETING HAS A SMOOTH, FLAT SURFACE AND SQUARE EDGE FINISH WHICH IS SUITABLE FOR EXPRESSED JOINTING AND PROVIDES A FACADE SUITABLE FOR A NUMBER OF FINISHES – FROM PAINTED TO TEXTURED COATINGS.

THE DURAGRID FACADE SYSTEM:

  • IS LIGHTWEIGHT.
  • IS HIGHLY DURABLE.
  • PANELS WILL NOT ROT, BURN OR CORRODE.
  • PANELS ARE NOT AFFECTED BY TERMITES, AIR, STEAM, SALT OR SUNLIGHT.
  • CAN BE EASILY DECORATED IN A NUMBER OF DESIGN FINISHES.
  • QUICK AND SIMPLE TO INSTALL USING SCREW FIXING.

APPLICATION

Duragrid Facade system utilises BGC fibre cement panels and graded, primed timber or steel battens to form a strong and durable facade cladding system.

BGC Duragrid is ideally suited for versatile architectural applications in light commercial applications where high impact resistance is not required. If high impact resistance is required BGC recommend the use of the Duracom compressed fibre cement facade system.

Duragrid panels are designed for installation in a variety of patterns, including vertical, orizontal, brick-bond or diamond inclined.

BGC Duragrid panels are available in 9mm thickness and may be finished with site applied acrylic paint systems or a factory applied high quality polyurethane plain finish. These may need alternative fixing methods. Please contact your local BGC office for advice.

NOTE: The fitting of the Duragrid Façade system should only be attempted by a professional contractor. Your local BGC Fibre Cement office can provide you with a list of recommended Duragrid installers.

ADVANTAGES

  • Lightweight cladding system
  • Readily accepts many forms of decorative finish
  • Highly durable product
  • Dynamic architectural style
  • Face sealed for paint application

ENERGY EFFICIENCY CONSIDERATIONS

Energy efficiency requirements have been introduced into the Building Code of Australia (BCA) for both commercial and residential buildings. Thermal heat transfer into and out of the building envelope will effect the running cost of the building and careful consideration of thermal heat transfer needs to be addressed by the architects, engineers and building designers.

Thermal bridging through steel framing will diminish the total R-Value; thermal conductance, of the wall. Thermal breaks are required for steel framed buildings. Thermal break tapes should have a minimum R-Value of 0.2.

PRODUCT INFORMATION

BGC Duragrid panels are an autoclaved, cellulose fibre reinforced silica/cement panel, specially formulated and prepared to meet the requirements for use in external applications. Duragrid panels have a smooth flat surface and a neat square edged finish, for enhanced expressed joint facades.

BGC Fibre Cement products are manufactured to the Australian / New Zealand Standard S/NZS 2908.2-2000 Cellulose-Cement Products,  : Flat sheets and Duragrid is classified as Type A-Category 2.

SHEET TOLERANCES

  • Width +0/-1mm
  • Length +0/-2mm
  • Thickness +10%/-0%
  • Diagonals difference (max) 2mm
  • Edge straightness deviation (max) 1mm

FIRE RESISTANCE

BGC Fibre Cement 9mm has been tested for and passed the Early Fire Hazard Property riteria in compliance with AS/NZS 1530.3 and AS/NZS 3837 and is deemed a Group 1 Material in accordance with the Building Code of Australia (BCA), Volume 1, Specification A2.4; Fire Hazard Properties.
AS/NZS 1530.3; Early Fire Hazard Properties.

  • Ignition Index                                   0
  • Spread of Flame Index                   0
  • Heat Evolved Index                         0
  • Smoke Developed Index                0-1

DURABILITY

BGC Duragrid physical properties make it a very durable product.

  • Duragrid panels are immune to permanent water damage in both short and long-term exposure.
  • Duragrid panels will not rot or burn and are unaffected by termites, air, steam, salt and sunlight.
  • Duragrid panels are not adversely affected over a temperature range of 0°C to 95°C.

Vapour permeable sarking must be installed under the timber or steel batten in accordance with the AS/NZS 4200.2 – ‘Pliable building membranes and underlays – Installation’ and the sarking manufacturers’ guidelines. The sarking should have the following properties:

  • Vapour barrier – low or medium
  • Water barrier – high

Vapour permeable sarking is used to prevent moisture ingress by acting as a drainage plane whilst enabling water vapour build up from inside the frame to escape.

THERMAL CONDUCTIVITY

Duragrid panels have relatively low thermal conductivity:

R-value. At Equilibrium Moisture content the approximate R-Value of Duragrid is;- 0.55 W/m°C.

WEATHER RESISTANCE

Duragrid Facade System conforms to the Building Code of Australia (BCA) requirements for external wall applications.

Duragrid facade system has been tested to AS/NZS 4284 Testing of Building Facades.

PANEL SIZES AND MASS

Duragrid panels are available in the following sizes.
THICKNESS mm MASS KG/M2 WIDTH mm LENGTH mm
1190 1790 2390 2990
9 11.7 590 x
890 x
1190 x x

HANDLING AND STORAGE

BGC Duragrid must be stacked flat, up off the ground and supported on equally spaced (max 400mm) level gluts. Care should be taken to avoid damage to the ends, edges and surfaces Sheets must be kept dry. When stored outdoors it must be protected from the weather.

Sheets must be dry prior to fixing, jointing or finishing.

COASTAL AREAS

The durability of galvanised nails and screws used for external cladding in coastal or similar corrosive environments can be as low as 10 years.

For this reason BGC recommend the use of stainless steel fasteners within 1km of the coast or other large expanses of salt water.

ACCESSORIES AVAILABLE FROM BGC

DURABATTEN – STEEL 35 x 70 x 3000mm  
HORIZONTAL BACKING STRIP 1190mm  
2390mm
2990mm
CAVITY VENT STRIP uPVC  
19 x 2700mm
SEALANT Sika 11FC or similar  
COUNTERSINKER Countersinking Tool  
Tungsten Carbide

FASTENERS

DURABATTEN TO FRAME

DURABATTEN TIMBER TO STEEL FRAME
Builders Class 3, 8 x 35mm Wingtek Self Embedding Head Screw, 8 x 40mm Wingtek Self Embedding Head Screw.

DURABATTEN STEEL TO STEEL FRAME
Class 3 Hex Head Screw, 12-14 x 20mm

DURABATTEN TIMBER TO TIMBER FRAME

Class 3 Corrosion resistant Ring shank nail – 2.8 x 65mm

DURAGRID TO DURABATTEN STEEL
No.8 x 30mm Countersunk self drilling

DURAGRID DURABATTEN TIMBER
C25 304 Stainless Steel Brads

2.8 x 30mm Fibre Cement nail

8 x 10 x 25mm Class 3 Countersunk wood screw

 FASTENERS

Select fasteners with suitable durability for the prevailing conditions. Please consult your supplier for:

  • Minimum requirements Class 3
  • Stainless steel may be required in some applications

All screw holes must be filled with an epoxy sealer such as Megapoxy P1, Hilti CA125 or Hilti CA273 and sanded flush to provide a flat surface for finish coating.

PRE COUNTERSINK

When using screws to fasten Duragrid, pre countersinking is required so that the fastener is 2mm under the sheet surface for filling with Epoxy filler.

DESIGN CONSIDERATIONS

The designer should determine the wind pressure for the project and specify the layout, pacing and fixing of the Durabatten to the structure.

The deflection of the supporting structure should be limited span/250 for Serviceability Wind Load, or as limited by AS/NZS1170.

In areas where there is a probability of wind loading, care should be taken in the design detailing, especially around all openings, corners and other junctions, to ensure the weather resistance of the total system.

Before the Duragrid panels and the supporting substructure is installed and fixed, particular care should be taken that all flashing and waterproofing work is complete, including all vapour permeable building wraps and damp proof coursing.

CONTROL JOINTS

In many cases, control joints will not be required as typical expressed joints permit some differential movement of the Duragrid panels and the sub-framing.

It is recommended that the designer consider the need for control joints in the following cases:

  • At a change in the structural substrate; eg masonry to steel framing.
  • Where Duragrid crosses a building control joint.
  • Where there is likelihood of movement in the sub-framing.
  • Continuous lengths greater than 8 metres in length

Structural movement vertical and horizontal control joints are required to match existing structural control joints and should pass through the facade.

GROUND CLEARANCE

Maintain a minimum 150mm clearance to earth or as required by local building regulations. See Foundation detail below.

GROUND CLEARANCE & FOUNDATION DETAIL

PANEL PREPARATION

For insitu paint finish applications, Duragrid panels are supplied sealed with a proprietary sealer applied during manufacture for durability.

Where it is necessary to cut sheets, cutting tools should have a dust extraction system.

Cut edges must be sealed with BGC Edge Sealer or an acrylic coating to eliminate moisture absorption.

A saw blade such as BGC Durablade with a poly crystalline diamond tip specifically designed to cut fibre cement sheets is recommended.

Ensure work area is well ventilated and wear an approved dust mask (AS/NZS1715 and AS/NZS1716) and safety glasses (AS/NZS1337).

BACKING STRIP INSTALLATION & SEALING

At the horizontal joints between the Duragrid panels, the Horizontal Backing Strip should be bonded to the back of the Duragrid panel to form a socket to which the Duragrid panels above are fixed over.

Set the backing strip 2mm from the edge of the Duragrid panel. Seal the cut edge with BGC Edge Sealer.

The backing strip can be fixed using:

  • SIKA 11FC. Ensure that the sealant has cured fully before panel installation
  • 3m 12.7mm VHB4901 double sided tape.

The contact surfaces to be cleaned with 3M HIPA 300 Adhesive cleaner.

NOTE: SIKA 11FC is the preferred option for fixing the backing strip.
NOTE: Ensure the sealant fills the void in the back of the Horizontal Backing Strip to prevent moisture ingress.

SEALANT (Preferred Option for Optimal Adhesion and Sealing ) – FRONT VIEW

BACKING STRIP TAPE – FRONT VIEW

BACKING STRIP SEALANT – REAR VIEW 

FASTENER SPACING – LIGHT COMMERCIAL

FIXING FIBRE CEMENT SHEET CLADDING TO STEEL BATTENS
Fix cladding to steel batten via a continuous 6mm bead of SIKAFLEX 11FC polyurethane sealant/adhesive to all contact surfaces and Nº 6 fibre zip screws (or equivalent, or better)
along all support edges, refer to Duragrid design table for maximum fixing centres.

FIXING STEEL BATTENS TO STEEL WALL FRAMES
Steel battens to be 0.75mm BMT and grade 300 steel:

BATTEN SIZE:
N1-N3, C1: TH19x70x0.75 batten
C2-C3: TH35 x70x0.75 batten

Steel battens can only be installed OFF stud (batten fixed to noggin) due to the profile of the steel batten.

Maximum batten span, (i.e. noggin spacing), is to be as per Duragrid design tables.

Batten spans (i.e. noggin spacing) should be approximately equal (within 25%)

Fix steel batten to steel wall frames with:
N1-N3: (max 1.215kN pullout load)
Fix steel battens to noggins with: 2Nº 8-18 x 20mm tek screws.
C1-C2: (max 1.81kN pullout load)
Fix steel battens to noggins with: 2Nº 8-18 x 20mm tek screws.
Alternatively, steel battens may be fixed to timber wall frames by substituting 8- 18 x 20mm tek screws with 8-15 x 40mm screws.

FIXING STEEL NOGGINS TO STEEL STUDS
Where noggins support battens, noggins must be securely fixed to studs.

Noggins should not span more than 600mm

Noggins to be fixed to studs via one of the following:

-Minimum 30mm weld each end, evenly spread over both sides of stud.
2Nº 6 x 20 wafer head tek screws each end of noggin.
2Nº Henrob rivets or equivalent each end of noggin.

NOTES
All calculations include full internal pressurization as per AS4055.
Stack bond (no overlap)
Deflection of battens limited to a maximum of span / 200
All steel framed walls to be constructed to relevant standard.

BATTEN SPAN/WIND PRESSURE LOAD

AS4055 Wind ClassificatioN Stud &  Durabatten  spacing (mm) TH19x70x0.75  Batten span  (max) TH35x70x0.75  Batten span  (max) Duragrid  Fixing  Centres
Non  cyclonic
N1, N2, N3 600 900 900 200
N4, N5 450 n/a n/a 200
N6 300 n/a n/a 150
C1 450 900 900 200
C2 450 n/a 900 200
C3 450 n/a 800 200
C4 300 n/a 850 150

FRAMING

Ensure that the frame is square and work from a central datum line. The frame must be straight and true to provide a flush face to receive the panels.

BGC recommend a maximum tolerance of 3mm-4mm in any 3000mm length of frame. Duragrid will not straighten excessively warped or distorted frames and any warping may still be visible after Duragrid is applied. Warped framing will require remedial action.

FRAME STRAIGHTNESS

The steel Durabatten should be fixed off stud – Refer to Span Table 1. Off stud fixing is restricted to low wind areas and noggings are required at maximum 800mm centres – Refer to span tables in all instances.

The vertical expressed joins must coincide with the centre line of the Durabatten. Stud centres may have to be designed to facilitate express joins.

STEEL FRAME
Use of steel frame must be in accordance with AS3623 – Domestic metal framing and the framing manufacturers’ specifications.

Framing members must have a Base Metal Thickness (BMT) between 0.55 to 1.6mm. The steel framing must have the appropriate level of durability required to prevent corrosion.

Stud framing members must be a minimum of 64x35mm.

DURABATTEN INSTALLATION

STEEL DURABATTEN
Can only be fixed off stud. Refer to Table 1 for stud/batten fastener spacings. Note: Off stud max span (noggin spacing) 800mm centres.

OFF STUD

BATTEN JOINING


INSTALLATION DETAIL

The architectural intent and details of buildings vary from one designer to the next, and the variety of details would be impossible to catalogue.

The detail diagrams following are intended to assist the designer in achieving a high quality weather resistant facade.

The designer should not digress from the specification set out in this manual.

PANEL POSITION – FRONT VIEW

Use the backing strip as a temporary gauge to space the vertical joint of successive boards ensuring a uniform 10mm space between successive panels. Use the backing strip to space vertical panel joints.

INSTALLATION DETAIL

PANEL INSTALLATION

Duragrid panels are to be fixed with a continuous 6mm bead of SIKA 11FC or similar polyurethane sealant/adhesive to all contact surfaces with required fasteners at specific centres. Duragrid panels should be sealed and fixed 1 panel at a time. Only apply sealant to the contact surfaces of the next panel to be fixed.

INSTALLATION DETAILS

SOFFIT DETAILFOUNDATION DETAIL INTERNAL CORNER DETAILEXTERNAL CORNER DETAILFASTENER POSITIONENCLOSED BALUSTRADE/PARAPET WALL

PENETRATIONS, WINDOW & DOOR OPENINGS

There are numerous varieties of penetrations, openings, and windows and door treatments available, and each weather proofing detail will be dependent on the material, style and manufacturer’s specifications.

Adequate weather proofing of the opening application must be considered by the building designer, in conjunction with the penetration, window and door manufacturer.

The following diagrams below are a guide only and the designer should consult with the appropriate manufacturers for the detail design to ensure adequate weather proofing.

WINDOW JAMB

PENETRATIONS, WINDOW & DOOR OPENINGS

WINDOW HEAD WINDOW SILL

THERMAL BREAKS

Thermal breaks are required for steel framed buildings, in walls enclosing habitable and or usable spaces. Careful consideration of thermal heat transfer and the position of thermal breaks need to be addressed by the architects, engineers and building designers.

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