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CSR Hebel Design & Detailing Considerations and Performance Responsibilities

By | August 19, 2011 - 4:30 am | CSR Hebel Power Panels and Blocks Comments Off

Control Joints

Control joints must be provided at a maximum of 6m spacing. Recommended control joint widths should be 10mm minimum between Hebel PowerPanel and another building component. Control joints must also be provided to coincide with any control joint in the main structure. Larger joint width maybe required to accommodate building movements, and these values shall be nominated by the designer. The top hat and back to back track must be discontinuous at a structural control joint.

Wet Area Wall Construction

Wet area wall construction requires a system that enables services to be installed in a cavity. All plumbing should be acoustically treated as required by the BCA. All wet area walls shall be lined and waterproofed in accordance with Australian standards and to BCA
requirements. Gyprock Aquachek or Cemintel Fibre Cement Wallboard are suitable lining materials for wet area applications.

Non-Hebel Components Used in Party Wall

Components, which are not manufactured by CSR Hebel, such as CSR Gyprock plasterboard, timber and steel stud wall frames, CSR Bradford insulation and others must be designed, installed and handled in accordance with their manufacturer’s guidelines and
recommendations.
CSR Building Products Limited, guarantees only the products that are manufactured by CSR Building Products Limited, not the components, products or services supplied by others.

Design, Detailing and Performance Responsibilities

CSR Hebel engages independent acoustic testing laboratories to test and report on the performance of a wall in accordance with the relevant Australian Standards. Consultants use these reports as the basis for opinions (estimates of laboratory performance) they issue for variations or different arrangements to the tested system, and also to design
and specify walls that meet appropriate criteria for a particular project. Using their experience, consultants will make judgement s about on-site installed performance of various walls. The performance levels of walls documented in this Design Guide are either what is reported in a test or the documented opinion of an consultant.
Performance in projects is typically the responsibility of;

Project Consultants (Acoustic, Fire, Structural, etc.):

Opinions on expected laboratory performance of wall configurations that vary from actual test configuration, such as substitution products and components.
Judgements about expected field performance using laboratory test reports and practical experience.
Design, specification and certification of acoustic, fire, structural and any other required performance for individual projects. This involves the design and selection of building elements, such as walls and floors and their integration in the building considering the following:

• Interface of different building elements and to the structure/substrate
• Wall and floor junctions
• Penetrations
• Flanking issues
• Room/building geometry
• Acoustic field testing

Project Certifier &/or Builder:

Identifying the performance requirements for the project in accordance with the Building Code of Australia and clearly communicating this to relevant parties.
Applicability of any performance requirements supplied by CSR Hebel including tests and opinions for the project.
The project consultant’s responsibilities detailed above if one is not engaged in the project.

CSR Hebel does not provide consulting services. CSR Hebel only provides information that has been prepared by others and therefore shall not be considered experts in the field. Any party using the information contained in this design guide or supplied by CSR Hebel in the course of a project must satisfy themselves that it is true, accurate and appropriate for the application, consequently accepting responsibility for its use.

It is the responsibility of the architectural designer and engineering parties to ensure that the details in this design guide are appropriate for the intended application. The recommendations of this guide are formulated along the lines of good building practice, but
are not intended to be an exhaustive statement of all relevant data. CSR Hebel accepts no responsibility for, or in connection with, the quality of the recommendations or their suitability for any purpose when installed.
CSR Building Products Limited is not responsible for the performance of constructed walls, including field performance, and does not interpret or make judgements about performance requirements in the Building Code of Australia.

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CSR Hebel Installation Guidelines

By | August 18, 2011 - 2:15 pm | CSR Hebel Power Panels and Blocks Comments Off

General

Before commencing any installation work, clean and tidy up the work area. Mark out the location of the walls.

Wall Framing

Ensure frames are installed plumb and mechanically fixed to the substrate.

All timber framework is to be fabricated and installed to the manufacturer’s specifications and AS1684 or AS1720.1.

Services

Ensure all services are installed within the wall frame and not on the face of the Power Panel.

Deflection Head Track

When the wall locations have been set out, fix the deflection head tracks to the substrate. This is done using suitable fixings (see Section 12.0) at 600mm maximum centres and maximum 100mm from ends. At changes in wall directions, ensure deflection head track is mitred with no gaps at the corners. Seal all butt joints with polyurethane sealant.

Hebel Mortar

Mortar is placed on the DPC and should only be run out roughly 3 panels (1800mm) ahead of panel installation. The mortar bed fills the gap at the base. Generally, the mortar is 10mm thick and shall extend the full width of the panel. Mixing of the mortar should be done in accordance with the instructions on the bag.

Wall Brackets

Screw fix the wall bracket to the top and bottom plates of the wall frame and to the Power Panel at 600 centres. Locate within 50mm of the centre width of each panel using fixings specified in Section 12.10.

Top Hats

Top hats should be cut to size before securing them to timber studs. At control joints the top hats should be discontinuous. For number, location, spacing and fixing of top hats, refer to the project specifications. The project classification (Torrens or Strata) will determine the future external loading parameters of the panels and associated top hat and fixing arrangement required.

Hebel Power Panel

The panels can be cut on-site using a circular saw equipped with diamond tipped cutting blade (for panel cutting limitations refer to Section 9.0). All the loose AAC particles should be brushed off the panel with a rough broom. Steel reinforcement that is exposed during
cutting must be coated with a liberal application of corrosion protection coating (see Section 12.0). Any minor damage and chips to the panels must be repaired using Hebel Patch.

Use packers at the base to maintain the gap and ensure gap is full of mortar (if specified).
The preferred method of fixing should be to screw through the top hat/bracket into the panel. Fix the panel to the deflection head (if specified). For following panels, apply Hebel
Adhesive to the vertical edge and install the next panel. Repeat the installation process until the wall is complete.

Hebel Adhesive

Hebel Adhesive is applied to the panel with a 75mm Hebel notched trowel. When the panels are pushed together the joints are to be 2-3mm thick. Sufficient pressure must be applied to the panels when gluing to ensure the adhesive is fully bedded across the joint. Scrape off any excess adhesive protruding from the joints and fill any gaps. Adhesive is to be mixed to the proportions and consistency as per the instructions on the bag.

CSR Bradford Insulation

Installation of CSR Bradford insulation should be completed in accordance with manufacturer’s handling and installation guidelines. The insulation provided should
completely fill the space between the stud framing and form a continuing barrier. If there is any gap in the insulation the acoustic performance of the system may be adversely affected.

Gyprock Plasterboard

Plasterboard sheets must be cut to fit neatly and should not be forced into position. The plasterboard is to extend the full height of the wall frame, with gaps at top and bottom for the specified sealant.
Plasterboard is fixed directly to the stud framework in accordance with the Gyprock Plasterboard Residential Installation Guide, NºGYP547.

Sealants

All movement joints and other gaps should be sealed off and finished neatly with fire and acoustic rated sealants. Installation of sealants must be carried out in accordance with the
manufacturer’s specifications.

Installation of Electrical, Plumbing and Other Services

Installation of services into walls should be carried out at an appropriate construction sequence. This will allow easy access to cavities and wall frames, where services can be easily installed and neatly hidden.
CSR Hebel suggests installing the plumbing and cabling after the panels have been installed. The builder or project manager should confirm appropriate construction sequence for services on a project-by-project basis.

Fasteners & Fixings

All fixings and fasteners should be installed in accordance with the manufacturer’s specifications.