1.1 APPLICATION This manual provides information for designers of James Hardie fire and acoustically rated walls, Fire safety practitioners | building industry professional . framed from timber or steel, Fire safety practitioners | building industry professional . for use in residential and commercial construction such as fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceSeparating walls in multi, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .residential construction fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceSeparating walls in office buildings fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceExternal walls required to be fire resistant fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceBathroom linings fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceHospital corridor walls subject to trolley impact fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceWall linings in transit areas and schools fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceWalls in security type buildings These fire and acoustically rated walls can be used to meet a wide range of performance specifications and service requirements to suit most applicationsfire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceFor internal partition walls, Fire safety practitioners | building industry professional . Villaboard® lining is the main component used. In addition, Fire safety practitioners | building industry professional . it can be used for bracing from the time of erection. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceFor external cladding applications, Fire safety practitioners | building industry professional . a range of James Hardie building products are available for fire and acoustically rated construction. Villaboard lining provides advantages when acoustic performance is needed from fire and acoustically rated walling systems. The dense sheet reduces sound transmission producing insulated walls that are slimmer than other traditional walling materials. These thinner walls have advantages in hotels, Fire safety practitioners | building industry professional . motels and similar accommodation venues where increased floor area is a bonus. An added benefit is that James Hardie building products are resistant to damage from moisture, Fire safety practitioners | building industry professional . rotting, Fire safety practitioners | building industry professional . cracking, Fire safety practitioners | building industry professional . fire and termites when installed and maintained as specified. This manual is intended to assist designers in selecting a suitable construction type, Fire safety practitioners | building industry professional . whereas general construction details are given in the James Hardie ‘Construction of fire and acoustically rated walls Technical Specification’. That literature provides details of framing installation, Fire safety practitioners | building industry professional . layout of sheeting, Fire safety practitioners | building industry professional . fasteners, Fire safety practitioners | building industry professional . placement of acoustic infill, Fire safety practitioners | building industry professional . control joints, Fire safety practitioners | building industry professional . corners, Fire safety practitioners | building industry professional . decorative finishes, Fire safety practitioners | building industry professional . service penetrations and more. Make sure your information is up to date. When specifying or installing James Hardie products, Fire safety practitioners | building industry professional . ensure that you have the current manual. Additional installation information, Fire safety practitioners | building industry professional . warranties and warnings are available at jameshardie or Ask James Hardie™ on 13 11 03. 1.2 RESIDENTIAL AND COMMERCIAL APPLICATIONS In residential and commercial applications, Fire safety practitioners | building industry professional . the James Hardie systems are principally for constructingfire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceSeparating walls between two occupancies, Fire safety practitioners | building industry professional . required to be both fire resistant and acoustically insulated. Refer to Section 5. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceExternal walls, Fire safety practitioners | building industry professional . required to be fire resistant, Fire safety practitioners | building industry professional . see Section 6. The Building Code of Australia (BCA) permits the use of lightweight framed walls in all Class 1 Buildings and in Class 2 and 3 Buildings under conditions outlined in this manual. However, Fire safety practitioners | building industry professional . this manual is not a substitute for the BCA. All relevant requirements of the BCA and other regulations must be complied with. The information provided in the manual regarding Class 1 to Class 3 Buildings includes the specific use of James Hardie fibre cement products. Generally the same principles and details apply to a Class 10a non, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .habitable building such as a carport, Fire safety practitioners | building industry professional . private garage, Fire safety practitioners | building industry professional . shed and the like where it touches the other class of building under consideration. CONTENTS 1 INTRODUCTION 2 1.1 Application 2 1.2 Residential and commercial applications 2 1.3 Deemed, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .to, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .satisfy BCA provisions 3 1.4 Building Code of Australia 3 1.5 Referenced documents and further information 3 2 FIRE RESISTANCE 4 2.1 General 4 2.2 Wall type construction 4 2.3 Fire testing 4 3 ACOUSTIC PERFORMANCE 5 3.1 General 5 3.2 Airborne sound 5 3.3 Impact sound 5 3.4 BCA performance levels 5 3.5 Testing and modelling 6 3.6 BCA acoustics compliance 6 3.7 Acoustics in practice 7 4 STRUCTURAL CONSIDERATIONS 8 4.1 General 8 4.2 Non, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .fire, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .rated systems 8 4.3 Fire, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .rated systems 9 4.4 Framing arrangements 10 4.5 Approved Internal Linings 11 4.6 Special applications 11 4.7 Further design requirements 12 5 DESIGN INFORMATION SUMMARY/SYSTEM SELECTION 14 5.1 General 14 5.2 System Compliance 14 6 EXTERNAL FRL WALL 19 CONSTRUCTION 6.1 Overview 19 6.2 Fire separation 19 6.3 Design requirements 19 7 EXOTEC® FACADE PANEL AND 20 FIXING SYSTEM FRL EXTERNAL WALLS 7.1 Overview 20 WE VALUE YOUR FEEDBACK To continuously improve the development of our products and systems, Fire safety practitioners | building industry professional . we value your input. Please send any suggestions, Fire safety practitioners | building industry professional . including your name, Fire safety practitioners | building industry professional . contact details, Fire safety practitioners | building industry professional . and relevant sketches to: Ask James Hardie™ Fax 02 9638 9535 literaturefeedback, jameshardie FIRE AND ACOUSTICALLY RATED WALLS DESIGN MANUAL SEPTEMBER 2015 3 1.3 DEEMED, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .TO, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .SATISFY BCA PROVISIONS In the lead up to the May 2004 revision to the BCA, Fire safety practitioners | building industry professional . it became clear that occupiers of multi, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .residential properties are generally concerned about the amount of noise they experience. In quality residential construction, Fire safety practitioners | building industry professional . residents expect to hear almost no noise from the adjoining occupancy. To achieve this, Fire safety practitioners | building industry professional . it is necessary to design and construct separating walls with superior sound insulating properties. The previous edition of this manual dated May 2000 referred to the James Hardie preferred system that was trialled using a program of laboratory and field testing in order to combine the required levels of fire resistance with the high level of sound reduction demanded. This system now forms the basis for the Deemed, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .to, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Satisfy provision in the BCA. The basic discontinuous system (see Figure 1) consists of two separate timber frames, Fire safety practitioners | building industry professional . lined with Villaboard lining and fire resistant plasterboard to achieve specific fire ratings. For further details refer to the dual frame systems in Section 5. The wall must be completely covered by the base sheet, Fire safety practitioners | building industry professional . without interruption, Fire safety practitioners | building industry professional . to ensure the acoustic integrity of the system. Using two separate frames further reduces impact sound transmission. Depending on the thickness of the Villaboard lining and fire resistant plasterboard used, Fire safety practitioners | building industry professional . the James Hardie systems can achieve the following loadbearing and non loadbearing fire ratingsfire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceTimber framing: FRL of 60/60/60 or 90/90/90 fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceSteel framing: FRL of , Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional ./60/60, Fire safety practitioners | building industry professional . 60/60/60, Fire safety practitioners | building industry professional . , Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional ./90/90, Fire safety practitioners | building industry professional . 90/90/90, Fire safety practitioners | building industry professional . , Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional ./120/120 or 120/120/120 To achieve the required fire and acoustic performance, Fire safety practitioners | building industry professional . the separating wall must be installed in strict accordance with the James Hardie ‘Construction of fire and acoustically rated wall Technical Specification’ for these walls. Refer to Section 3.4 for fibre cement deemed, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .to, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .satisfy solutions. NOTE The order of the linings is interchangeable. FIGURE 1 BASIC DETAILS OF THE JAMES HARDIE DISCONTINUOUS WALL SYSTEM 1.4 BUILDING CODE OF AUSTRALIA The BCA is the national regulatory instrument for building construction and it includes requirements for the design and construction of lightweight walling systems. The performance based criteria allows suppliers to test and prove that the systems they recommend will satisfy the requirements set out in the BCA. The BCA specifies minimum requirements for fire resistance, Fire safety practitioners | building industry professional . acoustic ratings and impact sound insulation for internal walls in all applicable classes of buildings. The information in this manual regarding the minimum requirements of the BCA may be used as a guide to, Fire safety practitioners | building industry professional . but not as a substitute for, Fire safety practitioners | building industry professional . the BCA. The BCA is subject to regular amendments and individual designs may therefore vary from BCA requirements. In selecting the right system for your application, Fire safety practitioners | building industry professional . you should determine the minimum requirements of the BCA to ensure that once the system has been selected and built, Fire safety practitioners | building industry professional . it satisfies those requirements. Ensure that you have the latest amendments of the BCA. In some of these applications, Fire safety practitioners | building industry professional . however, Fire safety practitioners | building industry professional . the design level of acoustic insulation does not always come from the BCA and instead may be specified in the design brief or contract documents. 1.5 REFERENCED DOCUMENTS AND FURTHER INFORMATION The following documents are referred to in this manualfire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceThe Building Code of Australia (BCA). fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceAS 1191 , Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional . Method for laboratory measurements of airborne sound transmission loss of building partitions. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceAS 1530.4 , Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional . Fire resistance tests of elements of building construction. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceAS 1684 , Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional . National Timber Framing Code. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceMulti Residential Timber Framed Construction (MRTFC) Design and Construction Manuals for Class 1 Buildings/Class 2 and Class 3 Buildings. For further information on timber, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .framed construction refer to the following publicationsfire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceAS 1684 – Residential timber, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .framed construction fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceAS 1720 – Timber structures fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceMRTFC Manuals published by the Timber Development Council or, Fire safety practitioners | building industry professional . contact the National Timber Association in each state or territory. For further information on steel, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .framed construction refer to AS/NZS 4600 – Cold Formed Steel Structures, Fire safety practitioners | building industry professional . or contact Metal Building Systems or Rondo Building Services. For further information on James Hardie Building Products visit our website and download the latest James Hardie manuals at  jameshardie, Fire safety practitioners | building industry professional . or Ask James Hardie™ on 13 11 03. Polyester or fibreglass acoustic insulation blanket Dual frame wall Noggings at 1350 max. centres 6mm Villaboard lining fixed horizontally FR plasterboard fixed vertically 4 FIRE AND ACOUSTICALLY RATED WALLS DESIGN MANUAL SEPTEMBER 2015 2 FIRE RESISTANCE 2.1 GENERAL The BCA specifies required levels of fire resistance for walls that separate one occupancy from another. These required levels are expressed as the Fire Resistance Level (FRL) of the wall in minutes. In the event of a fire, Fire safety practitioners | building industry professional . the fire walls provide occupants in the adjoining occupancy with sufficient time to escape safely, Fire safety practitioners | building industry professional . by ensuring the wall maintains sufficient structural adequacy, Fire safety practitioners | building industry professional . integrity and insulation. If the BCA, Fire safety practitioners | building industry professional . for example, Fire safety practitioners | building industry professional . requires a wall to achieve an FRL of 60/60/60 or , Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional ./60/60 (ie structural adequacy/integrity/insulation) the wall will have the following characteristicsfire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceThe first figure 60 describes the wall’s structural adequacy and indicates in minutes the period after which failure might occur as the wall system under test collapses under load. A dash here indicates that there is no requirement for structural adequacy (this is typical for non, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .load bearing systems). fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceThe second figure 60 describes the wall’s integrity and indicates in minutes the period after which failure might occur as the wall system under test develops cracks or openings through which hot gases or flames can pass. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceThe third figure 60 describes the wall’s insulation and indicates in minutes the period after which failure might occur in the wall system under test, Fire safety practitioners | building industry professional . when fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceThe average temperature of the unexposed surface of the test specimen increases by more than 140ºC above the initial temperature, Fire safety practitioners | building industry professional . or fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceThe temperature at any point on the unexposed surface increases by more than 180ºC above the initial temperature. 2.2 WALL TYPE CONSTRUCTION 2.2.1 Separating walls A fire rated separating wall, Fire safety practitioners | building industry professional . is required by the BCA to have a specified fire resistance level (FRL) as followsfire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceSeparating walls in Class 1 Buildings must have a fire resistance level (FRL) of 60/60/60. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceSeparating walls in Class 2 and 3 Buildings must have an FRL of 90/90/90. (Refer to the BCA Specification C1.1, Fire safety practitioners | building industry professional . Tables 3 and 4 and Clauses 3.10 and 4.3 for concessions on internal wall FRL requirements). The BCA permits the use of timber framed residential construction for walls required to be fire rated within the following limitsfire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceAll Class 1 Buildings. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceClass 2 Buildings to 3 storeys (4 storeys when the ground storey is for car parking and is of masonry or concrete construction). fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceClass 3 Buildings to two storeys where access to two exits is provided or where each sole occupancy has its own direct access to a road or open space. 2.2.2 External walls The BCA Part 3.7.1 ‘Fire’ requires that the external walls of Class 1 Buildings that are within 900mm of an allotment boundary (other than the boundary adjoining a public road or other public space) or external walls that are within 1.8m of another building on the same allotment (other than an appurtenant Class 10 Building or a detached part of the same Class 1 Building), Fire safety practitioners | building industry professional . shall have a FRL of 60/60/60. Where Class 2 and 3 Buildings are of Type C construction within 1.5m from any fire source feature to which they are exposed, Fire safety practitioners | building industry professional . the external walls are required to have a FRL of 90/90/90. Refer to the BCA Specification C1.1 Clause 5 for further details. Further details covering fire resistant construction for Class 2 and 3 Buildings can be found in the Multi Residential Timber Framed Construction (MRTFC) Manuals published by the Timber Development Council. NOTE The above information may be used as a guide to, Fire safety practitioners | building industry professional . but not as a substitute for, Fire safety practitioners | building industry professional . the BCA. The BCA is subject to regular amendments and individual design may result in variation to the BCA requirements. 2.3 FIRE TESTING The fire resistance level (FRL) test reports and Letters of Opinion quoted in this manual have been certified by the CSIRO Division of Building Construction and Engineering and the Building Research Association of New Zealand (BRANZ). Fire resistance testing to determine the FRL of a wall (in the form of a specimen) has been conducted to the Australian Standard AS 1530 Part 4: ‘Fire Resistance Tests of Elements of Building Construction’. The standard follows the basic principles and provisions contained in ISO, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .834 ‘Fire Resistance Tests – Elements of Building Construction’. 3.3 IMPACT SOUND Impact noise occurs where a vibration sound is created by some physical contact with the floor or wall through footsteps, Fire safety practitioners | building industry professional . moving of heavy objects, Fire safety practitioners | building industry professional . or the operation of household appliances such as dishwashers, Fire safety practitioners | building industry professional . washing machines and clothes driers. Impact sound between dwellings is accounted for by the requirement for discontinuous construction in certain walls. Discontinuous construction means a wall system having a minimum 20mm cavity between two separate frames, Fire safety practitioners | building industry professional . with no mechanical linkage between frames except at the periphery. A staggered wall stud is not deemed to be discontinuous construction. 3.4 BCA PERFORMANCE LEVELS The BCA concerns itself, Fire safety practitioners | building industry professional . as far as acoustic insulation is concerned, Fire safety practitioners | building industry professional . only with Class 1, Fire safety practitioners | building industry professional . 2, Fire safety practitioners | building industry professional . 3 and 9c (aged care) buildings. Therefore it covers only residential type dwellings. Commercial buildings are developed on the basis of non, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .BCA acoustic criteria and the designer is likely to find the required performance level in the tender or contract documents or design specifications. The BCA acoustic performance provisions for separating walls for various classes of dwellings are summarised in Table 1. † Class 2 buildings contain two or more sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .occupancy units each being a separate dwelling, Fire safety practitioners | building industry professional . refer to the BCA for more information. § Class 3 are residential buildings, Fire safety practitioners | building industry professional . other than a building of Class 1 or 2, Fire safety practitioners | building industry professional . which is a common place of long term or transient living for a number of unrelated persons, Fire safety practitioners | building industry professional . refer to the BCA for more information. NOTE Specific requirements are applicable for penetrations passing through a separating wall, Fire safety practitioners | building industry professional . refer to the BCA for details. FIRE AND ACOUSTICALLY RATED WALLS DESIGN MANUAL SEPTEMBER 2015 5 3 ACOUSTIC PERFORMANCE 3.1 GENERAL The revision of the BCA in May 2004 has brought changes in some cases not only to the level of sound insulation required between the rooms of dwellings, Fire safety practitioners | building industry professional . but also the manner in which the insulation is measured. Two modes of noise transmission are considered in buildings, Fire safety practitioners | building industry professional . namely airborne sound and impact sound. 3.2 AIRBORNE SOUND The capacity of a wall to reduce the level of airborne sound that can be transmitted through it is measured in terms of sound transmission loss. Previously the parameter STC (sound transmission class) was used to rate the performance, Fire safety practitioners | building industry professional . but our building codes have been revised to use the ISO standard, Fire safety practitioners | building industry professional . the weighted sound reduction index, Fire safety practitioners | building industry professional . Rw. Certain kinds of sound, Fire safety practitioners | building industry professional . however, Fire safety practitioners | building industry professional . are more readily transmitted through insulating materials than others, Fire safety practitioners | building industry professional . for example lower frequency sounds from modern home entertainment systems with their high bass frequency output. For this reason the BCA has introduced in certain cases a spectrum adaptation factor CTR to account for this phenomenon. Adopting the CTR is also likely to minimise inconsistencies between laboratory test results and on, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .site test results. The CTR is a negative number, Fire safety practitioners | building industry professional . which means that the (Rw + CTR) value of a building element will be less than its Rw rating. TABLE 1 * Class 1 buildings are single dwellings being either a detached house or one of a group of two or more attached dwellings, Fire safety practitioners | building industry professional . each being a building, Fire safety practitioners | building industry professional . separated by a fire, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .resisting wall, Fire safety practitioners | building industry professional . including a row house, Fire safety practitioners | building industry professional . terrace house, Fire safety practitioners | building industry professional . town house or villa unit. Boarding houses and the like may be included into a Class 1, Fire safety practitioners | building industry professional . refer to the BCA for more information. BCA ACOUSTIC PERFORMANCE REQUIREMENTS FOR CLASS 1, Fire safety practitioners | building industry professional . 2, Fire safety practitioners | building industry professional . 3, Fire safety practitioners | building industry professional . AND 9C DWELLINGS SEPARATING WALL DISCONTINUOUS ACOUSTIC RATING FIGURE 2 AND CONSTRUCTION REQUIRED TABLE 2 REQUIRED REFERENCE NO. Between a bathroom, Fire safety practitioners | building industry professional . sanitary compartment, Fire safety practitioners | building industry professional . laundry or kitchen and a habitable YES Rw + CTR not less than 50 room (other than a kitchen) in an adjoining Class 1* building (dwelling). Between a bathroom, Fire safety practitioners | building industry professional . sanitary compartment, Fire safety practitioners | building industry professional . laundry or kitchen in one sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional . YES Rw + CTR not less than 50 1 occupancy unit from a habitable room (other than a kitchen) in an adjoining Class 2† or 3§ unit. Between a Class 2 or 3 sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .occupancy unit and a plant room or lift shaft. YES Rw not less than 50 Between a Class 2 or 3 sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .occupancy unit and a stairway, Fire safety practitioners | building industry professional . public corridor, Fire safety practitioners | building industry professional . NO Rw not less than 50 2 public lobby or the like, Fire safety practitioners | building industry professional . or parts of a different classification. Between sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .occupancy units in a Class 9c aged care building. NO Rw not less than 45 Between a sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .occupancy unit and a bathroom, Fire safety practitioners | building industry professional . sanitary compartment NO Rw not less than 45 (not being associated ensuite), Fire safety practitioners | building industry professional . plant room or utilities room in a Class 9c aged care building. Between a sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .occupancy unit and a kitchen or laundry in a Class 9c YES Rw not less than 45 aged care building. In all cases different to those listed above NO Rw + CTR not less than 50 3 3.5 TESTING AND MODELLING 3.5.1 Acoustic test reports The acoustic test reports quoted in this manual have been certified by the CSIRO Division of Building Construction and Engineering. Acoustic measurements are made in one, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .third octave bands from 100 to 5000Hz. It is convenient to simply compare the performance rating of different assemblies by expressing the result as a single number, Fire safety practitioners | building industry professional . Rw. Systems used in building construction are tested under laboratory conditions to establish their sound insulation characteristics. The method of measurement is described in AS1191 ‘Acoustics – method for laboratory measurement of airborne sound transmission loss of building partitions’. 3.5.2 Acoustic modelling Based on the test results indicated above, Fire safety practitioners | building industry professional . acoustic modelling for the James Hardie wall systems was undertaken by Koikas Acoustics Pty Ltd. 3.5.3 Lab test results vs field performance The results determined in the laboratory indicate the potential acoustic performance of a wall system when installed with a high degree of workmanship. Inevitably, Fire safety practitioners | building industry professional . values achieved in the field will be lower, Fire safety practitioners | building industry professional . depending upon the quality of workmanship during the installation, Fire safety practitioners | building industry professional . and the sound paths that can be created around the wall by other components of the building. Measurements have shown, Fire safety practitioners | building industry professional . however, Fire safety practitioners | building industry professional . that laboratory results can be achieved in the field, Fire safety practitioners | building industry professional . where there is particularly high attention to detail in both design and installation. 3.6 BCA ACOUSTICS COMPLIANCE 3.6.1 General Compliance with the sound insulation performance provisions of the BCA can be achieved either by construction in accordance with the Deemedto, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Satisfy Provisions or on, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .site testing. Table 2 illustrates James Hardie Party Wall Solutions to Table 1 and Figure 2, Fire safety practitioners | building industry professional . in regards to Class 2 and 3 buildings only. Simply match the wall system number in Figure 2 with the acoustic solutions in Table 2. Refer to Section 5 in this manual for a comprehensive range of systems for steel and timber frames. 3.6.2 Deemed, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .to, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Satisfy Provisions The Deemed, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .to, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Satisfy Provisions are acceptable construction methods that comply with the acoustic performance requirements of the BCA. Refer to Table 2 for details. 3.6.3 On, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .site verification testing Compliance of walls to the BCA can be achieved by using the verification method, Fire safety practitioners | building industry professional . namely on, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .site testing, Fire safety practitioners | building industry professional . with performance levels as follows when tested in accordance with AS/NZS 1276.1 or ISO 717.1fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceWalls separating sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .occupancy units require a weighted standardized level of difference with spectrum adaptation term (DnT, Fire safety practitioners | building industry professional .w + CTR) not less than 45. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceWalls separating a sole, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .occupancy unit from a plant room, Fire safety practitioners | building industry professional . lift shaft, Fire safety practitioners | building industry professional . stairwell, Fire safety practitioners | building industry professional . public corridor, Fire safety practitioners | building industry professional . public lobby, Fire safety practitioners | building industry professional . or the like, Fire safety practitioners | building industry professional . or parts of a different classification require a weighted standardized level of difference (DnT, Fire safety practitioners | building industry professional .w) not less than 45. 6 FIRE AND ACOUSTICALLY RATED WALLS DESIGN MANUAL SEPTEMBER 2015 Lounge     Stairway Lounge Corridor UNIT 1 UNIT 2 UNIT 3 2 Bath 1 FIGURE 2 MINIMUM ACOUSTIC PERFORMANCE REQUIREMENTS FOR CLASS 2 AND 3 DWELLINGS TABLE 2 NOTES ON TABLE 2 Insulation for wall system 1; 50mm thick glass wool insulation or 60mm thick polyester insulation with a density of 11kg/m3 ; positioned between one row of studs; Insulation for wall systems 2; 50mm thick glass wool insulation with a density of 11kg/m3 or 60mm thick polyester insulation with a density of 8kg/m3 , Fire safety practitioners | building industry professional . positioned between studs. 3.7 ACOUSTICS IN PRACTICE 3.7.1 General the ability of James Hardie fire and acoustically rated walls to reduce airborne sound depends on four factors: 1. Mass of the linings and their intrinsic characteristics 2. Width of the wall cavity 3. Framing configuration 4. Inclusion of a fiber blanket or batts as sound insulation into the cavity. To achieve the performance results stated in this manual, Fire safety practitioners | building industry professional . particular care must be taken to seal between the frame and primary structure (eg at a deflection head). Any gaps in the wall system can lead to substantial losses of acoustic rating. The systems presented in this manual provide excellent acoustic performances that range up to an Rw of 68. 3.7.2 Acoustic insulation Acoustic performance of a wall system can be improved (ie Rw + CTR values increased) by installing an absorbent fill in the cavity. This is usually an acoustic grade fiberglass or polyester blanket, Fire safety practitioners | building industry professional . or batts not less than 50mm thick. When using a blanket, Fire safety practitioners | building industry professional . take care to avoid sagging of the blanket and do not leave any gaps as the acoustic performance will be reduced. A simple method that avoids this is to drive nails into the studs. Place the nails near the edge of the stud and skew the nails to avoid contact with the other frame. Then hang the blanket on the nails. SYSTEM Diagram Configuration Diagram Configuration fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceSteel or timber dual stud fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceSteel studs single frame frames, Fire safety practitioners | building industry professional . (Two rows of One row of 92mm steel Rw + CTR 50 90 x 35mm timber studs Rw 50 studs, Fire safety practitioners | building industry professional . refer to Section 4 or two rows of 64mm steel for further structural Load bearing studs at 600mm centers.) Load bearing considerations. (JH 234), Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Timber Refer to Section 4 for (JH 414), Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Steel fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems compliance6mm Villa board lining (JH 434), Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Steel further structural each side. Considerations. Non, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .load bearing fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems compliance13mm fire resistant Non, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .load bearing fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems compliance6mm Villa board lining (JH 314), Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Steel plasterboard each side. (JH 334), Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .Steel each side. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceWall insulation, Fire safety practitioners | building industry professional . see notes. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems compliance13mm fire resistant fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceStuds at 600mm Max. Plasterboard each side. Centers. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceWall insulation, Fire safety practitioners | building industry professional . see notes. fire certification courses | fire protection courses online | fire safety australia | certificate iv in fire systems complianceStuds at 600mm Max. Centers. FIRE AND ACOUSTICALLY RATED WALLS DESIGN MANUAL SEPTEMBER 2015 7 DEEMED, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .TO, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .SATISFY ACOUSTIC ONLY PERFORMANCE PROVISIONS WALL SYSTEM WALL SYSTEM NOTES: 1. Timber frames cannot be used for this wall configuration. >_ >_ 1 2 ON SITE VERIFICATION JAMES HARDIE PARTY WALL SOLUTIONS Rw + CTR 50 Refer to Section 5 for a comprehensive range of James Hardie acoustic and fire wall systems for steel and timber frames. BCA compliance of these systems can be achieved using on, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional .site verification testing, Fire safety practitioners | building industry professional . refer to Clause 3.6.3 3 >_ 8 FIRE AND ACOUSTICALLY RATED WALLS DESIGN MANUAL SEPTEMBER 2015, Fire safety practitioners | building industry professional . Fire safety practitioners | building industry professional ., Fire safety practitioners | building industry professional . Fire safety