1. Design

1.1 Material Properties

• 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).

1.2 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.

1.3 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.

1.4 Acoustic Performance

The QT EcoSeries Wall System was tested in accordance with AS/NZS 1276.1 for Airborne Sound Transmission and achieved STC41 and R_w41(-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.

1.5 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)

1.6 Durability

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.

1.7 Cavity

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.

1.8 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.

1.9 Weepholes

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.

BGC Duraplank is designed and manufactured as a plank which is reminiscent of traditional weatherboards both in appearance and installation methods. BGC Duraplank is not subject to decay, rot or white ant damage and is non combustible. The result is a safer, more durable cladding that requires minimum maintenance.

BGC Duraplank is available with a smooth finish, woodgrain (Douglas Fir) or rusticated texture for that authentic weatherboard look. Duraplank has the strength to withstand the rigours of normal family activities.

Duraplank:

• reminiscent of traditional weatherboards
• not subject to decay, rot or white ant damage
• safe and durable
• available in 3 different profiles

*some sizes may not be available in all states, please check with your local BGC office for availability.

Good load carrying capacity: Hebel PowerFloor systems can support a maximum uniformly distributed load of 5kPa, or concentrated (point) load of 1.8kN over a load area of 350mm² with joists at 600mm maximum centres, 3.9kN over a load area of 10,000mm². For loads outside this range, please contact CSR Hebel.

Low wastage: Minimal on-site cutting as panels are supplied in standard lengths to suit joist spacings.

Rapid installation: Typical placement rates of 70m²/day can be achieved, with follow-on trades starting after 24 hours. The speed of construction of the project is further enhanced when coupled with Hebel PowerWall Systems.

Tranquillity: Hebel PowerFloor is designed for superior acoustic insulation. It creates a sound barrier between floors, and used with a Hebel wall system, maximises the tranquillity in your home.

Termite resistant: AAC is not a food source for termites.

No pre-drilling required: All fixings can self-tap through the AAC.

Fire resistance: Excellent resistance to fires on top of the floor.

Solidity: Hebel PowerFloor is extremely strong, and each panel is reinforced with corrosion-protected steel mesh. The panels fit snugly together to form a strong and smooth floor.

Thermal Resistance: Hebel PowerFloor’s better thermal efficiency assists in achieving thermal ratings that result in reduced heating and cooling costs.

A distinct difference between the systems is the PowerPanel to framing connection methods and the resulting acoustic performance qualities.

75mm Hebel Intertenancy 001 utilises an aluminium bracket system. The bracket system provides the wall with a ‘Discontinuous Construction’ rating.

75mm Hebel Intertenancy 002 offers a top hat connection where the panel is secured to the framing with horizontal steel top hats.

Detail 3.1: 75mm Hebel Intertenancy 001

Detail 3.2: 75mm Hebel Intertenancy 002

Table 5.1: System Selection for Hebel Low Rise Party Walls

Wall System	System Characteristics
75mm Hebel Intertenancy 001	Bracket system Discontinuous construction Maximum building height no more than 12m Low cost solution Simple construction and easy installation Installed at framing stage Satisfies strata construction
75mm Hebel Intertenancy 002	Top hat system Not discontinuous construction Maximum building height no more than 12m Low cost solution Simple construction and easy installation Installed at framing stage dlasaSatisfies strata construction

B1 Architectural Specification

This specification should be adopted as a guide only, and shall be superseded by the contract specifications of the project.

* Insert or select appropriate specifications.

Scope

The contractor shall furnish all material and equipment required to satisfactorily complete the installation and jointing of the specified Hebel PartyWall system where indicated in the contract specification and/or on the layout drawings.

Materials

All AAC material shall be Hebel PowerPanel as manufactured by CSR Hebel. All accompanying fixings shall be as per the current Hebel Low Rise Multi-Residential Party Walls Design & Installation Guide, NºHBLA228 LRPW and/or the appropriate project consultant’s specifications. All lining materials shall be Gyprock plasterboard or Cemintel Fibre Cement sheet as manufactured and supplied by CSR Building Products (or products of equivalent or better performance). Plasterboard shall be manufactured to meet the dimensional requirements of AS/NZS2588 ‘Gypsum Plasterboard’. Steel frame components shall be those manufactured by Rondo Building Services Pty Ltd (or products of equivalent or better performance). All infill material shall be CSR Bradford infill as manufactured and/or supplied by CSR Bradford (or products of equivalent or better performance).

Wall System

The contractor shall supply and install *75mm Hebel Intertenancy 001, Option ……… or *75mm Hebel Intertenancy 002, Option ……… in accordance with the current Hebel PartyWall Design & Installation Guide, NºHBLA228 LRPW, and shall satisfy the following performance criteria. The wall shall have a Fire Resistance Level *FRL ……/……/…… in accordance with the requirements of AS1530.4. Installation shall be carried out to the level specified for a field acoustic performance of *D_ntw/R‘_w …………… using cavity infill of *Bradford………………… (or products of equivalent or better performance).

Lining Boards

The stud frame on each side or the PartyWall shall be lined with one layer of *…………mm Gyprock *……………… plasterboard, or one layer of *…………mm Cemintel *……………… fibre cement sheet. All layers shall be fixed and caulked as specified for the relevant system in the Gyprock Plasterboard Installation Manual, NºGYP547, other relevant CSR technical literature, and Rondo Building Services literature or appropriate steel frame manufacturer’s literature.

Plasterboard Levels of Finish

All framing, plasterboard lining, jointing and finishing shall be carried out to *Level ………Level of Finish, in accordance with Gyprock Plasterboard Installation Manual, NºGYP547 and/or AS/NZS2589.1 ‘Gypsum Linings in Residential and Light Commercial Construction – Application and Finishing’.

Caulking

Provide a * one or two sealant system in accordance with the sealant manufacturer’s requirements. The sealant system shall meet or exceed the fire resistance level (FRL) rating of the Hebel PartyWall system in which it is used. In fire rated systems where caulking is indicated, use *……………… fire rated polyurethane sealant with non fire-rated backing rod, installed in accordance with the manufacturer’s recommendations or use *……………… acoustic rated polyurethane sealant with fire-rated backing rod installed in accordance with the manufacturer’s recommendations. In non fire-rated or fire-rated wet areas where caulking is indicated, use fire rated *……………… polyurethane sealant installed in accordance with the manufacturer’s recommendations.

Important

Any variation or substitution of materials or assembly requirements, or compromise in assembly may result in failure under critical conditions.