hebel installation » Hebel Panel

3.0 Typical Applications Power Wall

CSR Hebel Detached & Low Residential Design Guide No Responses »

Jun 292012

Hebel PowerWall is designed for application in the domestic, residential markets. Basically, the types of buildings that are constructed using Hebel PowerWall are detached or attached 1 or 2 storey houses, duplexes and town houses. The Building Code of Australia (BCA) generally classifies these buildings as being predominantly of Class 1 or Class 10 building structures.

Structurally, Hebel PowerWall uses Hebel PowerPanel as non-loadbearing external cladding. Each PowerPanel is steel reinforced and installed vertically and secured to steel top hat battens. The top hat battens are secured to load carrying timber or steel stud frames.

Hebel PowerFloor is a complimentary system that can be used in conjunction with Hebel PowerWall. Hebel PowerFloor can be quickly installed over timber or steel floor framing using a construction adhesive & screw fixings.

Figure 3.1 shows an example of a typical home that uses Hebel PowerWall for Detached Houses & Low Rise Multi-Residential External Walls.

Fig. 3.1 Typical Home Construction Application

4.0 How to Design a Hebel PowerWall

CSR Hebel Detached & Low Residential Design Guide No Responses »

Jun 292012

4.1 Design Process

This section outlines the design process for determining the adequacy of Hebel PowerWall.

STEP 1: Determine the wind category, stud framing layout and PowerPanel height requirements.

STEP 2: Design Criteria. Where required identify the BCA Performance Requirements:

Fire Resistance Level (FRL).
Sound insulation performance (R_w values).
Energy Efficiency (R-Value).

STEP 3: The flowchart below can be used to select a type, spacing and quantity of top hats and fixings to suit requirements.
STEP 4: Select insulation and/or sarking material to suit energy efficiency and condensation requirements.
STEP 5: Check adequacy of sound insulation and fire resistance level.
STEP 6: Complete detailed design and documentation.

4.2 Compliance With the Building Code of Australia (BCA)

All building solutions, such as walls, floors, ceilings, etc. must comply with the regulations outlined in the BCA or other authority.

The BCA is a performance based document, and is available in two volumes which align with two groups of ‘Class of Building’:

Volume 1 – Class 2 to Class 9 Buildings; and
Volume 2 – Class 1 & Class 10 Buildings – Housing Provisions.

Each volume presents Regulatory Performance Requirements for different Building Solutions for various classes of buildings and performance provisions.

These Performance Provisions include: Structure; Fire Resistance; Damp & Weatherproofing; Sound Transmission & Insulation; and Energy Efficiency.

This design guide presents tables, charts and information necessary to design a Hebel PowerWall that complies with the Performance Requirements of the BCA. The designer must check the adequacy of the building solution for Performance Requirements outlined by the appropriate authority.

Fig. 4.1 Flow Chart for Design Process

Appendix C: Designer, Builder, Installer and Inspector/Supervisor Checklists

CSR Hebel Detached & Low Residential Design Guide No Responses »

Jun 282012

This checklist is to be read in conjunction with ALL CSR Hebel documentation including the CSR Hebel Technical Manual, CSR Hebel PowerWall Detached Houses & Low Rise Multi-Residential External Walls Design & Installation Guide. Safe Work Method Statements (SWMS) and technical advice from CSR Hebel. Co-ordination and compliance with specifications by the project engineer, building designer and architect where required is also compulsory. These project consultants are also responsible for incorporating this system into the subject project.

If you are not in receipt of any of these documents, please ask your CSR Hebel representative or project consultant to provide them prior to commencement of any Hebel PowerWall installation.

Project Details:_______________________________________________________

Wall/s Area Details:___________________________________________________

Checklist – Designer

Checklist
Slab	1. Design slab stepdown: 95mm wide, typical depth 150mm (min. 20mm).2. Adjust engineering drawings and advise concretor
Frame	1. Nominal total wall thickness 170mm (70mm stud) or 190mm (90mm stud).2. Adjust documentation to suit PowerPanel system:- with openings dimensioned, – distance between openings to 300mm module, – distance from openings to corners to 300mm module and to suit PowerPanel orientation. 3. Ensure structural design of frame allows for the additional weight of the suspended PowerPanels. 4. Bracing to be steel cross bracing where possible, otherwise ply the whole wall. Framer to be informed of system requirements.
Windows	1. Windows to be ordered with correct reveal size.2. Windows to be ordered to suit 300mm module if possible. In either case, the width should be shown on the drawings.
Features	1. Design and document any special features on the drawing, such as quoins, corbels, sills, trims, etc.
Coatings	1. Select colour and texture prior to PowerPanel installation.2. Select colour for special features, if necessary.

Design criteria to help minimise installation costs
Drawings	Drawings should reflect the following design items:1. All openings dimensioned on the plan2. Walls set out to 300mm module as much as possible 3. Orientation of PowerPanels at corners noted and allowed for in dimensions. 4. Details provided on the required sill profile and any special features and position of control joints.
Cutting	1. If the number of full height PowerPanels that require a full length site cut (ie. 2400mm or 2700mm) exceeds 10% of the number of PowerPanels supplied to the project, then the installation cost is likely to be higher. This percentage excludes bay windows which are typically installed as an extra.

Design criteria to help minimise installation costs

Drawings

Drawings should reflect the following design items:1. All openings dimensioned on the plan2. Walls set out to 300mm module as much as possible

3. Orientation of PowerPanels at corners noted and allowed for in dimensions.

4. Details provided on the required sill profile and any special features and position of control joints.

Cutting

1. If the number of full height PowerPanels that require a full length site cut (ie. 2400mm or 2700mm) exceeds 10% of the number of PowerPanels supplied to the project, then the installation cost is likely to be higher. This percentage excludes bay windows which are typically installed as an extra.

Checklists – Builder

CHECKLIST
Slab	1. Ensure slab rebate formed correctly and flattened with a wood float, adjust if necessary.2. Ensure slab edge does not protrude further than 95mm from the frame and the vertical edge of the rebate does not proceed further than 20mm from the frame, adjust if necessary.
Frame	1. Ensure frame is complete, level, plumb and installed where required for the installation of the top hats and PowerPanels, especially in the gable areas.2. Ensure the bracing has been installed correctly, with extra ply added, to maintain the alignment of the entire wall.
Services	1. Ensure water pipes have been installed with all vertical runs located between the studs and not on the external face of the frame.
Windows	1. Ensure windows have been supplied with the correct reveal size and installed correctly
Supplied by Builder	1. The supervisor is to organise supply of the following items to the site BEFORE the installers commence the PowerPanel installation:- DPC,- Galvanised lintels (if required), – ‘Abeflex’ (gables and control joints), – Sealant and foam backing rod for control joints.

NOTE
It is important that the builder understands his responsibilities as outlined in the previous two checklists and refers to the construction details in this guide, in order to ensure that the greatest benefit is achieved through the use of Hebel PowerWall and to avoid incurring additional costs.

Checklists – Inspector/Supervisor

CHECKLIST
Documentation	1. CSR Hebel PowerWall Architectural Specification.2. CSR Hebel PowerWall Detached Houses & Low Rise Multi-Residential External Walls Design and Installation Guide.
Installation of 75mm Hebel PowerPanel	1. DPCs.2. No. of top hats, minimum three (refer Table 5.1 and 5.4).3. Extra top hats around openings. 4. Top hats discontinuous at control joint. 5. No. of screws per PowerPanel, minimum two per top hat (refer Table 5.2, 5.3 and 5.5). 6. Top hat clearance from plumbing, 10mm. 7. Joints all full with adhesive and flush. 8. Window detail. 9. Location and construction of control joints. 10. Minimum width of PowerPanels not less than 270mm.
Coating	1. Interface between PowerPanels and windows sealed.2. Control joints sealed and ‘V’ grooved.3. Coating of exposed reinforcement prior to coating. 4. Render and texture coatings not to bridge sealants. (i.e. at control joints).

CHECKLIST

Documentation

1. CSR Hebel PowerWall Architectural Specification.2. CSR Hebel PowerWall Detached Houses & Low Rise Multi-Residential External Walls Design and Installation Guide.

Installation of 75mm Hebel PowerPanel

1. DPCs.2. No. of top hats, minimum three (refer Table 5.1 and 5.4).3. Extra top hats around openings.

4. Top hats discontinuous at control joint.

5. No. of screws per PowerPanel, minimum two per top hat (refer Table 5.2, 5.3 and 5.5).

6. Top hat clearance from plumbing, 10mm.

7. Joints all full with adhesive and flush.

8. Window detail.

9. Location and construction of control joints.

10. Minimum width of PowerPanels not less than 270mm.

Coating

1. Interface between PowerPanels and windows sealed.2. Control joints sealed and ‘V’ grooved.3. Coating of exposed reinforcement prior to coating.

4. Render and texture coatings not to bridge sealants. (i.e. at control joints).

Checklists – Installer

CHECKLIST
Tools and Equipment	1. Power supply.2. Hebel tools.3. Power drill with clutch control. 4. Circular saw with metal cutting or diamond tipped blade. 5. Panel lifters. 6. Sockets for screws. 7. Safety equipment.
Documentation	1. Architectural drawings from builder.2. CSR Hebel PowerWall Detached Houses & Low Rise Multi-Residential External Walls Design and Installation Guide.3. Wind category to be specified by designer.
Installation of 75mm Hebel PowerPanel	1. No. of top hats required, minimum 3 (refer Table 5.1 and 5.4).2. Top hats screwed to stud with 2 screws/stud.3. No. of screws per PowerPanel, minimum 6 (refer Table 5.2, 5.3 and 5.5). 4. Extra screws and/or top hats required around corners or for fire rating. 5. Joints all full with adhesive and flush. 6. Control joint locations. 7. Extra materials for sills and details (optional). 8. Clearance of top hat from plumbing services (10mm minimum). 9. Exposed reinforcement coated with anti-corrosion agent.
Extras Provided by Installer	1. M6/M12 masonry anchors for fixing angles to piers and brick sub-floor walls.2. 600x200x50mm Hebel blocks for sills, etc, if required.3. Anti-corrosive agent (purchased from CSR Hebel). 4. The large and small screws (optional).

1.0 Introduction Power Block

Hebel Power Block Design and Installation guide No Responses »

Jun 282012

CSR Panel Systems is a division of CSR Building Products Limited, one of Australia’s leading building products companies.

CSR Panel Systems manufactures Hebel® Autoclaved Aerated Concrete (AAC). The AAC in Hebel® products is manufactured from sand, lime and cement to which a gas-forming agent is added. The liberated gas expands the mixture, forming extremely small, finely dispersed air pockets, resulting in lightweight aerated concrete.

CSR Panel Systems has manufactured Hebel® products that have won wide acceptance as innovative and environmentally preferable building materials. This is due to their lightweight nature, excellent thermal, fire and acoustic properties and design versatility. These inherent properties of Hebel® products help achieve quick and cost efficient construction practices as well as providing for comfortable operating environments inside the buildings all year round.

Build a premium home with Hebel® PowerBlock™

Hebel® PowerBlocks are large AAC Blocks with a standard face dimension of 600mm x 200mm, laid in much the same way as bricks but using Hebel® Adhesive to form a monolithic structure. Typically, external walls use a single skin of 250mm thick blocks while internal, non-loadbearing walls use 100mm thick blocks. Hebel’s tight manufacturing tolerances deliver beautifully flat, true surfaces that are easily rendered and painted.

Walls built with Hebel® PowerBlock™ are strong and durable, providing the security of solid masonry coupled with exceptional thermal and acoustic insulation properties. With over three times the thermal resistance of double brick, Hebel® PowerBlocks exceed the Building Code of Australia (BCA) for energy efficiency regulations for zones 1,2, 3 and 5 without the need for additional bulk insulation.

Hebel® PowerBlocks are non combustible and can achieve an Fire Resistance Level (FRL) of up to 240/240/240.

For detached houses, this is well above the requirements for building right up to the boundary line and making Hebel® an ideal choice for bushfire prone areas.

Compared to traditional double brick construction, Hebel® PowerBlock™ walls can be laid much faster, saving building time and costs. Building with Hebel® Blocks may create more internal floor area for the same building dimensions.

Hebel® Lintels can be used over windows, doors and garage door openings. Hebel® also supplies sill blocks for under windows to complement the overall look of your home.

Fig 1.1 Isometric Concept House

2.0 Benefits PowerBlock

Hebel Power Block Design and Installation guide No Responses »

Jun 272012

The many benefits of using Hebel PowerBlocks include:

Solid and strong:

Hebel PowerBlocks are made from Autoclaved Aerated Concrete (AAC), a strong, solid masonry building material with the advantage of being 25% the weight of conventional concrete.

Acoustic Performance:

Significantly reduced sound transmission from room-to-room.

Thermal Resistance:

Unique thermal properties result in a more stable inside temperature, reducing the energy required to heat and cool your home, thereby reducing energy bills.

Environmentally friendly:

73% less embodied energy and 61% less greenhouse gas emissions than comparative masonry products*. *Source: LCA Report GECA 2006.

Fire Protection:

Non-combustible blocks with frameless construction deliver superior fire resistance. Hebel PowerBlock systems also allow you to build right up to your boundary line.

Pest resistance:

Not a food source for termites or vermin and no cavity construction eliminates the chance of harbouring pests.

Design Freedom:

Hebel PowerBlock Wall Systems provide absolute freedom to design and build your ultimate dream home – without compromise.

Technical Support:

Competent technical support through Hebel distributors.

Energy Efficiency

The unique combination of thermal resistance and thermal mass make building with Hebel a smart choice for meeting Australia’s stringent building regulations. The thermal performance of a building depends on a number of factors such as orientation and size and aspect of windows. The R-Value of walls and floors can significantly affect the energy-rating outcome of dwellings. A 250mm Hebel PowerBlock has 3 timesthe R-Value of a cavity brick wall (BCA Vol. 2 Figure 3.12.1.3). The use of Hebel in walls and floors will provide increased thermal performance that can allow more flexibility with other design aspects of a building. The thermal efficiency of Hebel systems will also reduce the reliance on heating and cooling appliances. The combined effects of running a heater less in winter and fans or air conditioning less in summer can have a big impact on energy costs and the environment.

Single Skin Construction

The AAC masonry constructed from Hebel PowerBlock products is called “Plain Masonry” and the blocks are masonry units referred to as a “Solid Unit”. The type of solid unit is “Autoclaved aerated concrete masonry unit” complying with AS/NZS 4455 – Masonry Units and Segment Pavers. The larger face dimension and being a single skin, Hebel PowerBlock walls are erected quickly when compared to double brick construction.

Image 2.1: Hebel® PowerBlock™ home

10.0 Tools & Equipment for Construction PowerBlock

Hebel Power Block Design and Installation guide No Responses »

Jun 252012

Hebel PowerBlocks can be laid using construction tools/equipment.

String Line – A string line is required to accurately set out and lay Hebel PowerBlock Walls.

Brick/Blocklaying Profiles – used to gauge the block course are being laid level.

Mixing Bucket – a minimum 20 litre bucket is required for mixing Hebel Mortar, Hebel Adhesive and Hebel HighBuild render.

Electric Drill – an electric drill is required to mix the Hebel Mortar, Hebel Adhesive and Hebel HighBuild render. It is also used to drill clearance holes in the blocks so they can be placed over the tied down rods where required.

Stirrer – fitted to the electric drill, the stirrer is used to mix the Hebel Mortar, Hebel Adhesive and Hebel HighBuild render inside the mixing bucket.

Notched Trowel – the notched trowel is used to apply the Hebel Adhesive to the Hebel surfaces. The width of the trowel must match the block thickness to ensure the adhesive is applied with full and even coverage.

Rubber Mallet – a rubber mallet is required to ‘tap’ the Hebel PowerBlocks onto the adhesive and into place.

Spirit Level – required to install the blocks level and plumb.

Hand Saw – a Hebel handsaw can be used to cut Hebel PowerBlocks to length and height.

Powered Bandsaw – a bandsaw is ideal for cutting Hebel PowerBlocks. (perfect when there are many site cuts to be performed).

Hebel Square – a purpose built square is available for use when marking and cutting Hebel PowerBlocks.

Steel, Plastic and Timber Trowels – these trowels may be required for the installation of the Highbuild render and texture coatings.

Sanding Float – used to even out inconsistencies in the Hebel PowerBlock Wall in preparation for render/texture coats.

Hebel Hand Router – may be used to chase services into solid Hebel walls.

Circular Saw – (fitted with a diamond blade) may be used to chase services into solid Hebel walls.

Electric Router – may be used to chase services into solid Hebel walls.

Crane – may be required to lift large Hebel Lintels and Hebel custom floor panels.

Lifting Grabs – required for use in conjunction with crane for lifting Hebel lintels and custom floor panels.

Scaffold – Scaffold is required when building block walls. The amount of scaffold depends on the height of the walls.

Sealant Gun – required to fill the control joints in the Hebel PowerBlock Walls.

Image 10.1: Hebel tools

14.0 Construction Details (Typical) Hebel PowerBlock

Hebel Power Block Design and Installation guide No Responses »

Jun 252012

Base of Wall

Fig 14.1 Hebel PowerBlock work on Stiffened Raft Slab Edge Foundation (elevation)

Fig 14.2 Hebel PowerBlock work showing infill block to slab rebate (elevation)

Fig 14.3 Internal Load Bearing Hebel PowerBlock work on stiffened raft slab foundation (elevation)

Fig 14.4 Concrete PowerBlock Sub-Floor Detail (elevation)

Fig 14.5 Roof Top to Plate Fixing to Hebel Wall – Strap (elevation) – for vaulted/cathedral roofs

Fig 14.6 Roof Top to Plate Fixing to Hebel Wall – Strap (elevation) – for typical trussed roof

Fig 14.7 Strap Fixing to Hebel Walls (isometric – typical trussed roof)

Fig 14.8 Double Brick Sub-Floor Detail (elevation)

Fig 14.9 Ring Beam Internal Non-Loadbearing Wall (elevation)

Top of Wall

Fig 14.10 Internal Hebel Load Bearing Wall and Timber Floor Frame Junction (elevation)

Fig 14.11 Truss Spanning Over Non-Load Bearing Hebel Walls (elevation)

Fig 14.12 Timber Truss/Joist Fixed to Hebel Walls (elevation)

Fig 14.13 Tiled Roof Eve and Hebel Wall Junction (elevation)

Fig 14.14 Vaulted Ceiling & Roof Top Plate Fixing To Hebel Wall (elevation)

Wall Junctions

Fig 14.15 External Wall and Internal Partition Wall Junction (plan)

Fig 14.16 External Corner with Control Joint (plan)

Control Joints

Fig 14.17 Control Joint detail (elevation)

Fig 14.18 Typical Bond Beam Control Joint – elevation

Fig 14.19 Typical Control Joint – plan

Fig 14.20 Typical Ring Beam Control Joint – elevation

Fig 14.21 Hebel PowerBlock work Typical Movement Joint Detail (elevation)

Fig 14.22 Hebel PowerBlock work Typical Movement Joint Detail (plan)

Fig 14.23 Built-in Column Detail (plan)

Fig 14.24 Built-in Column Detail (elevation)

Floors

Fig 14.25 Non-Load Bearing Hebel PowerBlock Wall and Hebel Floor Panel Detail (elevation)

Fig 14.26 Loadbearing Hebel PowerBlock Wall and Floor Panel Junction Detail (elevation)

Fig 14.27 Loadbearing Hebel PowerBlock Wall and Timber Floor Frame Junction Detail (elevation)

Fig 14.28 Timber Floor Support Detail (elevation)

Fig 14.29 Hebel Flooring Panels using Ring Anchor Construction on Load Bearing Interior Wall (elevation)

Fig 14.30 Ceiling Support Detail A (elevation)

Fig 14.31 Ceiling Support Detail B (isometric)

NOTE: Refer to section 7.12 of the Hebel Technical Manual for the full set of Details on the Floor Panel System.

Balcony and Deck

Fig 14.32 Balcony Detail (elevation)

Fig 14.33 Balcony Detail (elevation)

Fig 14.34 Deck Connection Detail (side elevation)

Fig 14.35 Deck Connection Detail (front elevation)

Stairs

Fig 14.36 Stairwell (isometric)

Fig 14.37 Stair Tread Set-Out (isometric)

Fig 14.38 200mm wide x 50mm thick Hebel PowerBlocks adhered to walls on their ends to provide support for treads (isometric)

Openings

Fig 14.39 Steel Door Frame (Internal or External) to Hebel Wall Fixing (plan)

Fig 14.40 Steel Door Frame (Internal or External) to Hebel Wall Fixing (plan)

Fig 14.41 Timber Door Frame (External) to Hebel Wall Fixing (plan)

Fig 14.42 Timber Door Frame (Internal) to Hebel Wall Fixing (plan)

Fig 14.43 Aluminium Window Frame – Window Sill Detail (elevation)

Fig 14.44 Aluminium Window Frame – Window Jamb Detail (elevation)

Fig 14.45 Aluminium Window Frame – Window Head Detail (elevation)

Fig 14.46 Lintel Installation

(a) Elevation

(b) Section

Appendix B: Estimating Hebel PowerFloor

CSR Hebel Power Floor Design Guide No Responses »

Jun 192012

Following is a guide to assist in working out quantities and costs for the required components of the Hebel PowerFloor system.

Step 1: Calculation of the Total Floor Area

First calculate the total floor area of the building, allowing for the panels to extend UNDER the external wall frames.

The easiest way for this to be calculated is to determine the overall wall length of the area being calculated, then minus the exterior wall material and cavity thickness. Below is a diagram of a house using the Hebel Low Rise External Wall System. This system gives an overall exterior wall thickness of 185mm (90mm stud frame, 20mm tophat batten and 75mm thick Hebel PowerPanel), so given the plan dimensions the area would be worked out as follows:

14.000 – 0.095 – 0.095 = 13.810 m (0.095 = 75 mm Hebel PowerPanel and 20 mm tophat)
7.000 – 0.095 – 0.095 = 6.810 m
Total Floor Area (TFA) = 13.810 x 6.810 = 94.0461 m²(total area to the outside of the stud frame)

Step 2: Panel Waste

Ths can be calculated n two ways:

An accurate calculation by completing adetailed panel layout and measuring the amount of waste that will be generated due to the layout of the house. Or By applying a waste percentage to the Total Floor Area. Generally allow an additional 5% of area. Therefore multiply the Total Floor Area by 1.05. This calculation gives you the total Adjusted Floor Area (TAFA).

Step 3: Material Quantities

Now that the floor area has been worked out we can move on to working out the material quantities.

(A) Hebel PowerFloor Panels:

Area of one panel = (1.8m x 0.6m) = 1.08m²

No. of panels = Total Adjusted Floor Area (TAFA) ÷ 1.08m²

(B) Screws

Joists @ 450cts = 8 screws required per m² of floor
Joists @ 600cts = 6 screws required per m² of floor
Total screws = (6 or 8 ) x Total Floor Area (TFA)

Note: Packs come in 2 sizes, 100 or 250. Screws to be estimated based on the pack sizes.

(C) Hebel Adhesive

Each 20kg bag of Hebel Adhesive glues 20m² of floor area.
Total bags = Total Floor Area (TFA) ÷ 20

(D) Construction Adhesive

Each tube of construction adhesive glues approx. 10 panels to the sub floor joists. This is 10 x 1.08m² = 10.8m² of floor area.
Total tubes of adhesive = Total Floor Area (TFA) ÷ 10.8

Client Details
Date
Client Name
Client Address
Client Phone
Client Fax
Client Email
	Total Floor Area (TFA) =	m²
	Total Adjusted Floor Area (TAFA) =	1.05 x TFA =		m²
Item		Quantity	Cost / Unit	Total Cost
Panels	TFA ÷ 1.08 =			$
Screws (Joists @ 600) OR (Joist @ 450)	TFA x 6 = OR TFA x 8 =		(250)	$
			(100)	$
Hebel Adhesive	TFA ÷ 20 =			$
Construction Adhesive	TFA ÷ 10.8 =			$
TOTAL				$

7.0 Sound Transmission & Insulation Party Wall

CSR Hebel Party Wall Design Guide No Responses »

Jun 192012

7.1 Overview

The Building Code of Australia (BCA) presents the Performance Requirements for sound insulation ratings. The sound insulation ratings set minimum values to consider two types of sound: airborne sound and impact generated sound. The Performance Requirements for airborne sound insulation and impact sound insulation ratings are dependent upon the form of construction (i.e., walls or floors), Class of Building, and the type of areas being separated. The airborne sound performance requirement is a value that could be the weighted sound reduction index (R_w) or weighted reduction index with spectrum adaptation term (R_w+C_tr). The impact sound performance requirement is a value called the weighted normalised impact sound pressure level with spectrum adaptation term (L_n,w+ C₁). The BCA does provide Performance Requirements for the airborne sound and impact generated sound insulation ratings for a party wall. Refer to Tables 6.1 and 6.2 for sound insulation resistance level of the Hebel PartyWall systems.

7.2 Impact Sound Performance

Impact sound is caused by vibrations, which are transferred directly through the wall and re-radiated as sound in the adjacent room. These sound vibrations can be generated by actions such as closing of a cupboard door. The transfer of impact sound can be minimised by ensuring no mechanical connection exists between the two sides of the wall. For impact rated walls the new BCA requires walls to be of ‘discontinuous construction’. This refers to a wall maintaining a minimum 20mm cavity between two separate leaves except at the periphery.

Note: For gap widths ≤ 20mm, CSR™Hebel™ has obtained expert opinion that discontinuous construction performance will not be compromised.

7.3 Acoustic Performance Design Recommendations

CSR™ Hebel™ recommends engaging a specialist acoustic consultant on a project-by-project basis to provide design advice, confirmation of anticipated field performance, detailing and installation inspections.
When selecting the appropriate Hebel™ PartyWall, the designer or specifier must be aware that the laboratory Rw values are almost always higher than the field measured values. Therefore, allowances should be made for the lower expected field values during the selection of the system.
Separate advice from a specialist acoustic consultant should be sought to determine the effect on acoustic performance due to any changes to the Hebel™ PartyWall systems, and any required modification of the installation details pertaining to the systems.
Increasing of cavity widths, using higher density or thicker insulation or plasterboard, will generally maintain or increase the acoustic performance of the Hebel™ PartyWall.
The acoustic performance values of the Hebel™ PartyWall systems shown in Tables 6.1 and 6.2 are a guide only as to consistently achievable field performance. They do not constitute a field performance guarantee as factors such as the presence of flanking paths, quality of installation of the system, on-site detailing of junctions, room shapes and size, etc can significantly affect field performance. Maximising the field performance depends on the following factors:

The systems are installed in accordance with the manufacturer’s standard installation details.
Good quality installation practices including the sealing of all junctions and joints and maintaining specified
clearances.
The systems are installed with all junctions acoustically sealed so that negligible sound transmission occurs
at these points.
Flanking paths are eliminated and the structures into which the systems are installed are capable of allowing the
nominated rating to be achieved.
Site testing conditions.
To minimise the transfer of sound through the Hebel™ PartyWall system into the adjacent unit, it is suggested that a control joint be provided to break the mechanical path for the transmission of impact sound and other vibration.

10.0 Design & Detailing Considerations Party Wall

CSR Hebel Party Wall Design Guide No Responses »

Jun 182012

10.1 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.

10.2 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.

10.3 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.

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