ceiling systems

400C Issue 2May 2004

Plasterboard Ceiling Systems

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Fire-rated Ceiling Systems

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Plasterboard Ceiling Systems

Contents

Fire-rated Ceiling SystemsStandard Ceilings Design ............................... 3-7

Introduction.....................................................3Fire Ratings .....................................................3Systems Mass.................................................3Decoration.......................................................3General Construction Details.........................4Materials...................................................... 4-5Installation.......................................................6Backblocking ...................................................7

System Selection ............................................8-18Standard Construction .................................19-22Cable and Loaded Penetrations........................23Pipe Penetrations...............................................24Ceilings to a Radius...........................................25Change of Pitch..................................................26Bulkheads......................................................27-28Light Recess .......................................................29Access Hatch ................................................ 30-31Beam Protection .......................................... 32-34Joints ..................................................................35Perimeter Details ......................................... 36-38

Non Fire-rated Ceiling SystemsStandard Ceilings Design ........................... 39-43

Introduction...................................................39Fire Hazard Properties..................................39Systems Mass...............................................39Decoration.....................................................39General Construction Details.......................39Materials.................................................. 39-40Installation............................................... 40-41Backblocking ........................................... 42-43

System Selector.................................................44Standard Construction ................................ 45-47Perimeter and Bulkhead Details .......................48

QuietZone™ Ceiling SystemsIntroduction........................................................49Acoustic Ceiling Mount............................... 49-50

Installation ...............................................49Direct Fix ..................................................49Suspended ...............................................50Load Ratings ............................................50Performance.............................................50

Acoustic Selector ...............................................51Installation.................................................... 52-54

Quiet Ceilings ..........................................52Quieter Ceilings .......................................53Quietest Ceilings .....................................54

General InformationGuarantee............................................Back CoverTecASSIST Details ..............................Back CoverContact Details....................................Back Cover

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IntroductionBoral Plasterboard Fire-rated Ceiling Systems have been designed to provide fire resistance ratings of FRL 30/30/30, FRL 60/60/60, FRL 90/90/90 and FRL 120/120/120. Systems are also available to provide 30, 60, 90 or 120 mins. resistance to incipient spread of fire.

Ceilings can be constructed under roofs of Tile, Aluminium or Steel Profiled Section fixed to battens on a steel or timber framework or under floors constructed of at least 12mm Plywood, Timber or Particle Board fixed to a steel or timber supporting frame.

Ceiling systems may be fixed as either a Direct Fixed System, Suspended System, or Direct Clipped (Furred) System.

Note:• Where illustrations in this manual show a

Suspended Ceiling System, a Direct Fixed or Furred System may also be used.

• These ceiling construction details are not suitable for external ceilings.

Construction Features• Ceiling can be curved to a minimum radius

of 6000mm.• Ceiling can be constructed to a pitch of up to

70 degrees from the Horizontal.• Ceiling systems can incorporate the

following approved features: Access Panels, Bulkheads, Light & Luminaire fittings, Plumbing Pipe penetrations, Power Cable penetrations, Loaded penetrations, Control Joints, Protection to Steel & Timber Beams, Changes in ceiling slope direction and a variety of Perimeter Details.

• Thermal or acoustic insulation (max. 3kg/m2) may be placed above ceiling.

Fire RatingsBoral Plasterboard FRL 30/30/30 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and covered by fire opinion FCO-0568.

Boral Plasterboard FRL 60/60/60 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 736, SI 1761, SI 1891,TR 238(L),TR 336(L) and FSH-0597. These systems are covered and validated by fire opinion FCO-1658.

Boral Plasterboard FRL 90/90/90 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 710, SI 736, SI 1761 and SI 1891. These systems are covered and validated by fire opinion FCO-1856.

Standard Ceilings Design

Boral Plasterboard FRL 120/120/120 Ceiling Systems: Appraised by the CSIRO Division of Building, Construction and Engineering and based on fire tests; SI 23, SI 710, SI 736, SI 1761, SI 1891 and FSH-0597. These systems are covered and validated by fire opinions FCO-1856 andFCO-1658. For details of the FRL 120/120/120 system, please refer to Boral Plasterboard TecASSIST or TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover).

Early Fire Hazard PropertiesBoral Plasterboard Firestop, tested for Early Fire Hazard Properties in accordance with Australian Standard 1530.3 - 1989, recorded the following results:

Ignitability (0-20) - 13Spread of Flame (0-10) - 0Heat Evolved (0-10) - 1Smoke Developed (0-10) - 2

Ceiling Systems Mass Calculations

Component Mass• One layer of 16mm Boral Firestop

Plasterboard has a mass of approximately 13kg/m2;

• One layer of 13mm Boral Firestop Plasterboard has a mass of approximately 10.5kg/m2;

• Rondo Furring Channel Part No. 129 has a mass of approximately 0.5kg/m;

• Rondo Top Cross Rail Part No. 128 has a mass of approximately 0.7kg/m.

Systems MassThe following table shows mass calculations based on the above approximations:

DecorationThe ceiling system is flush jointed to provide a smooth, continuous surface ideal for all forms of decoration. Care must be taken to apply paint or other finishes strictly in accordance with the manufacturer’s instructions.

PlasterboardLayers

PlasterboardMass

SuspensionSystem Mass*

1 x 16mm2 x 16mm2 x 13mm3 x 13mm1 x 13mm1 x 16mm3 x 16mm4 x 16mm

13kg/m2

26kg/m2

21kg/m2

31.5kg/m2

23.5kg/m2

39kg/m2

52kg/m2

15kg/m2

28kg/m2

23kg/m2

33.5kg/m2

25.5kg/m2

41kg/m2

54kg/m2

* The suspension system mass is approximate only and based on a Rondo steel suspension system with Top Cross Rails @ 1200mm centres, Furring Channels @ 600mm centres and an average drop.

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General Construction DetailsMovement joints should be put at building construction joint locations. Control joints should be spaced at not more than 12 metre max. centres in either direction (15 metre centres where there is perimeter relief). Refer to "Joints" for details.

Specifiers should be aware of the likelihood of frame movement due to structural, thermal and seasoning effects on direct fixed plasterboard ceilings. Where necessary specify a furred system to minimise the risk of ceiling damage due to these effects.

Caution:Boral Plasterboard ceiling systems are not designed to support the weight of maintenance personnel, additional plant or storage of goods.

Materials• 16mm or 13mm Boral Firestop Plasterboard

recessed edge.• Boral Plasterboard Jointing Compound

(as preferred from the Boral Plasterboard Jointing Compound range).

• Boral Plasterboard Cornice 55mm, 75mm & 90mm if required, applied using Boral Plasterboard Cornice Adhesive or Cornice Adhesive Mid Set.

• Perforated paper tape.• Approved fire-rated sealant for caulking

gaps at ceiling perimeters.• Boral Cornice Adhesive.• Screws and nails as specified.• Rivets (all steel).

Refer to Safety Data Sheets, available from Boral Plasterboard Sales Offices, or the container labelling, when handling relevant products.

All materials used in the construction of Boral Plasterboard ceiling systems must be carefully stored and protected on the construction site. Plasterboard is to be stacked flat and protected from moisture. Boral Firestop Plasterboard must not be used where it will be exposed to excessive moisture. In addition, damaged plasterboard sheets and accessory materials must not be used.

FastenersScrewsAll screws are to AS3566- 1988 corrosion class 1 and are defined as follows:

• Type S is a double start, needle point, bugle head gypsum screw for fixing to steel gauges of up to 0.80mm BMT.

• Type D is a double start, drill point, bugle head gypsum screw for fixing to steel gauges from 0.80mm to 2.00mm BMT.

• Type W is a single start, needle point, bugle head gypsum screw for fixing to hardwood and softwood framing. In some instances double start screws are permissible (refer to Boral Plasterboard for details).

• Type L is a single start, needle point, bugle head gypsum screw for fixing plasterboard to plasterboard.

Note that correct screw length is critical when fastening to resilient furring channel to avoid acoustic bridging.

NailsAlthough nail lengths specified are minimum, care should be taken when using longer nails to avoid bending in hardwoods or popping of plasterboard with unseasoned timber.

Fastener SelectionThe following tables show the correct selection of screws and nails for the construction of Boral Plasterboard ceiling systems.

Number of Layers of Plasterboardx Thickness

1 x 13mm1 x 16mm1 x 16mm

Min. 13mm Min. 16mm

Min. 2 x 16mm

Type L Screws for Fixing Plasterboard

A to B

10 - 8 x 32mm 10 - 8 x 38mm 6 - 8 x 50mm

Screws - Plasterboard to Plasterboard

Plasterboard A Plasterboard B

Screw identification is given as:(min. gauge) - (threads/inch ±1) x (min. length)

Timber Frame -Type W Screws

Number of Layers of

Plasterboardx Thickness

1 x 13mm1 x 16mm2 x 13mm2 x 16mm

6 - 9 x 32mm 6 - 9 x 40mm6 - 9 x 50mm6 - 9 x 60mm

Steel Frame -Type S or Type D Screws

1 x 13mm+ 1 x 16mm

6 - 18 x 25mm*6 - 18 x 30mm6 - 18 x 40mm6 - 18 x 45mm

Screws - Plasterboard to Ceiling Frame

3 x 16mm

6 - 9 x 50mm 6 - 18 x 40mm

8 - 8 x 75mm 8 - 15 x 60mmType S only

Screw identification is given as:(min. gauge) - (threads/inch ±1) x (min. length).

* For ease of construction with framing steel gauges of less than 0.8mm BMT, use 30mm minimum length screws.

7 - 16 x 50mmType S only

3 x 13mm 8 - 8 x 60mm

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Suspension BracketNo. 274

Suspension BracketNo. 247

Furring ChannelNo. 129

Top Cross RailNo. 128

JoinerNo. 139

Direct Fixing ClipNo. 226



Suspension RodNo.121

Suspension ClipNo. 2534

Corner BeadNo. P32

Control JointNo. P35

Wall TrimNo. DU05

Steel AngleNo. 554

Shadow Line TrimNo. P50

Rondo Fixing and Suspension ComponentsManufactured by Rondo Building Services Ltd. and marketed by Boral Plasterboard:

129 - Furring Channel128 - Top Cross Rail139 - Joiner to Top Cross Rail237, 226, 394 - Direct Fixing Clips247 or 274 - Suspension Bracket121 - Suspension RodDU05 - Wall Trim2534 - Adjustable Suspension ClipP32, P01 - External Corner Bead553 - All Steel Angle 35x35x0.75554 - All Steel Angle 50x50x0.75P35 - Rondo Control JointP50 - Shadow Line Trim

See illustrations below.

Smooth Shank Gold Passivated

Annular Ring Shank and

Uninail

Number of Layers of

Plasterboardx Thickness

1 x 13mm

1 x 16mm

40mm¹30mm²50mm¹50mm²65mm¹,²65mm¹,²

1 = Softwood 2 = Hardwood

30mm¹30mm²

Galvanised 2.8mm

Diameter

1 x 13mm+ 1 x 16mm

40mm¹30mm²50mm¹40mm²50mm¹,²65mm¹,²

75mm x 3.75¹,² 75mm x 3.75¹,²

Nails - Plasterboard to Timber Frame

2 x 13mm2 x 16mm3 x 13mm3 x 16mm

65mm¹,² 50mm¹,²

Fasteners (continued)

Rondo Fixing and Suspension Components

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Plasterboard Application for Systems using 1, 2 or 3 Layers of Plasterboard.

1. Fix Boral Firestop Plasterboard across the Furring Channel, Timber or Steel framing.

2. Butt (end) joints on the first layer (uppermost sheet) not formed on framing members should be back-blocked as described under "Back-blocking".

3. The first layer (uppermost) of Firestop plasterboard sheets are fastened at 200mm max. centres in the field of board and at 150mm max. centres on ends and edges (staggered).

4. Additional layers of Firestop plasterboard sheets are fixed in the same manner as the first layer but with joints staggered between layers min. 200mm.

5. Additional layer butt joints not formed on a framing member are screw laminated to the previous layer at 200mm max. centres.

6. Tape and finish face sheet with preferred Boral Plasterboard jointing system.

Plasterboard Application forFRL 120/120/120 Systems Using 4 Layers of Plasterboard.

1. Fix the upper two layers as in steps 1 to 5 above.

2. Fix Rondo P.N. 129 furring channels at 600mm centres to Rondo P.N. 237 clips @ 1200mm centres fixed through upper two layers and into the primary framing with min.12 x 60mm roofing screws.

3. Fix first of bottom two layers of Boral Firestop Plasterboard across the secondary furring channel framing at 200mm max. centres in the field of board and at 150mm max. centres on ends and edges (staggered).

4. Butt or end joints on this layer not formed on framing members should be back-blocked as described under "Back-blocking".

5. The second of the two bottom layers of Firestop plasterboard sheets is fixed in the same manner as the first layer but with joints staggered between layers min. 200mm.

6. Screw laminate bottom layer butt joints not formed on framing members at 200mm centres to previous layer with 10x38 Type L screws.

7. Tape and finish face sheet with preferred Boral Plasterboard jointing system.

InstallationCeiling systems may be constructed by fixing layers of 16mm and/or 13mm Boral Firestop Plasterboard in either, a Suspended, Direct Fixed or Direct Clipped (furred) system as per details under "Standard Construction".

Furring channel and framing supports to be taken to and provided within 50mm of ceiling perimeter - min 15mm end clearance to walls. Allowance should be made for an expansion gap at the rate of 3mm per 1 metre run in abutting Furring Channels and Top Cross Rails.

All permitted and approved fire-rated penetrations or features must be installed and caulked in accordance with the details provided in this manual.

Suspended SystemsCeiling framing and design to be in accordance with the requirements of A.S.2785.

• Attach suspension rods to suspension rod brackets that are anchored to structural framing or concrete soffit, at 1200mm maximum centres in each direction.

Note: Each suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads.

• Attach suspension clips to top cross rails, and fit suspension clips to rods. Adjust the rails to a true and level plane.

• Position furring channels at 600mm maximum centres and attach to top cross rails with a locking clip at each intersection.

• Join lengths of furring channel with furring channel joiners, ensuring the joins are staggered.

• Extra suspension components must be provided to support light fittings, bulkheads and other fixtures. Spans and spacings may be reduced if required.

Direct Clipped (Furred) SystemsPosition furring channels at 600mm maximum centres and attach channels to structural framing with direct fixing clips at 1200mm maximum centres, or to concrete soffit with anchor clips fastened to soffit at 1200mm maximum centres. Ensure that furring channels are fixed to a true and level plane. Spans and spacings may be reduced if required.

Direct Fixed SystemsWhere fixing direct to timber or steel framing without furring channel, framework should not exceed 600mm spacing. Spans and spacings may be reduced if required.

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Architectural SpecificationBoral Plasterboard Ceilings shown in the relevant drawings shall consist of materials supplied by Boral Plasterboard, fixed and finished in accordance with the instructions contained in Boral Plasterboard Technical Manuals and in TecSYS - a comprehensive technical catalogue on CD-ROM (see back page for details).

As drawings are updated from time to time, users are advised to check drawing currency before adopting the procedures and details noted thereon.

Back-blockingBack-blocking is a mandatory fixing requirement where specified in the Australian StandardAS/NZS 2589.1:1997.

Failure to provide back-blocking installed as per AS/NZS 2589.1:1997 may result in liability for any associated costs relating to maintenance and/or rectification caused by jointing defects.

Multiple LayersButt or end joints on the first layer (uppermost sheet) not formed on framing members must be dry back-blocked as follows:

• Cut back-blocking pieces from 16mm Boral Firestop Plasterboard to sizes no less than 200mm wide and in lengths that will fit between the framing members.

• Fix Boral Plasterboard ceiling sheet transverse to framing members, placing the back-blocks centrally along the full length of the sheet's edge.

• Fix ceiling sheet to back-blocks with10 x 38mm Type L screws at 200mm max. centres.

• Fix the next ceiling sheet and screw laminate to back blocks.

Back-blocking pieces of 16mmBoral Firestop Plasterboard min.200mm wide fixed with 10 x 38Type L screws @ 200mmmax. centres

Framing

Top layer of BoralFirestop Plasterboard

For single layer systems,back-blocks to be fixed withcornice adhesive and screws

Joints in other layersstaggered min. 200mmfrom previous layer

EQ

EQ

100mm min.

200mm min.

Laminate back-block toback face of ceiling with10 x 38 Type L screws@ 200mm max. centres

Form plasterboard dryback-block behind allend joints not formedon framed members

Where illustrations throughout this manual show a Suspended Ceiling System, a Direct Fixed or Furred System may also be used.

Note:

Single LayerWhere system comprises only one layer,back-blocks must be additionally fixed with cornice adhesive as follows:

• Cut back-blocking pieces from Boral Plasterboard sheet to sizes no less than 200mm wide and in lengths that will fit loosely between the framing members.

• Prepare Boral Plasterboard Cornice Adhesive in a clean container with sufficient water to make a stiff paste of smooth consistency.

• Apply adhesive over the full face of the back-blocking pieces using a notched spreader to form beads of 6mm x 6mm at approximately 20mm centres and at right angles to the joint.


• Fix ceiling sheets to back-blocks with10 x 38mm Type L screws at 200mm max. centres.

• Immediately fix the next ceiling sheet and screw laminate to back blocks as previously.

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Ceiling Variations using 1, 2 or 3 Layers of Plasterboard.Fire ratings of FRL 30/30/30, FRL 60/60/60, FRL 90/90/90 and FRL 120/120/120 may be achieved with various combinations of 1, 2 and 3 layers of Boral Firestop Plasterboard. Where illustrations throughout this manual give the option of using either 1, 2 or 3 layers of plasterboard, refer to the table below to select the system giving the fire and acoustic ratings required.

System Selector Table

Ceiling Variations using 4 Layers of Plasterboard.A fire rating of FRL 120/120/120 with a 120min. resistance to incipient spread of fire is achieved using four layers of 16mm Boral Firestop Plasterboard - 2 bottom layers and 2 top layers separated by a secondary furring channel framing (System CS6). For details, refer to Boral Plasterboard TecASSIST or TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover).

CautionBoral Plasterboard ceiling systems are not designed

to support the weight of construction or maintenance personnel, additional plant or storage of goods.

System Selector Table

Fire Rating(FRL)

Resistance toIncipient Spread

of Fire #

Acoustic Rating(Rw)* Plasterboard

LayersSystem

FRL 30/30/30

FRL 60/60/60

FRL 90/90/90

FRL 120/120/120

30mins.

60mins.

60mins.

60mins.

30mins.

90mins.

52dB

55dB

56dB

57dB

55dB

59dB

1 layer of 16mm BoralFirestop Plasterboard

1 layer of 13mm and1 layer of 16mm BoralFirestop Plasterboard

2 layers of 16mm BoralFirestop Plasterboard




CS17

CS15

CS15

CS21

CS20

CS22

37dB

39dB

39dB

40dB

39dB

42dB

52dB

55dB

56dB

57dB

55dB

59dB

DFS FS SS

DFS = Direct Fixed System with nominal cavity depth of 190mm between ceiling and floor.FS = Furred System with nominal cavity depth of 220mm between ceiling and floor and

Rondo P.N. 226 Direct Fixing Clip fixed to side of joist with furring channel fixed to clip.SS = Suspended System with nominal cavity depth of 350mm between ceiling and floor.PO = Plasterboard Only. The Rw rating is for the number of plasterboard layers specified.

* Acoustic ratings are based on ceiling insulation of minimum 100mm thick polyester or glass wool @ 14kg/m3.

# Also protection to loaded steel or timber beams above ceiling.

60mins. 56dB2 layers of 16mm BoralFirestop Plasterboard

CS1539dB 56dB

90mins. 59dB3 layers of 16mm BoralFirestop Plasterboard

CS1042dB 59dB

30dB

32dB

33dB

34dB

32dB

35dB

PO

33dB

35dB

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System Selector FRL30/30/30

(Test Ref.)

SystemNo.

Fire-RatingFRL (mins)

CS17 0.5 Hour30/30/30

30 mins resistance to incipient spread

of fire

CSIRO Opinion FCO-0568

Standard Design Roof or Floor Ceiling Systems - Suspended, Direct Fixed or Furred

Description and Physical Data

System provides a variety of application configurations using 1 layer of 16mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System.

1 layer of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members - Longitudinal joints (along recessed edges) and Butt or End Joints not formed on framing members should be back-blocked - Back blocks to be screw laminated - Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max.centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame.

Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame.

OR OR

OR

OR

Furred Channel Systems

Direct Fixed Systems

Suspended Systems

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CS14


of fire

CSIRO OpinionFCO - 0794 &FCO - 0668

Upgrade of Existing Fibrous Plaster Ceiling1 Hour60/60/60 2 layers of 16mm Boral Firestop screw attached

to Rondo steel furring channels spaced at 600mm centres. Furring Channels clipped to Rondo anchor clips fixed through existing fibrous plaster ceiling to existing framing with 50mm Type W screws for soft wood framing or 40mm Type S or Type D for steel framing. Anchor clips spaced at 1200mm max. centres staggered - joints staggered - first layer butt joints may fall on one furring channel across the full width of the ceiling - face layer butt joints located on additional short lengths of furring channel and staggered- face joints finished.

CS12


of fire

CSIRO OpinionFCO-0467

Acoustic Suspended Ceiling under Fire-rated Ceiling System

(Test Ref.)

SystemNo.


1 Hour60/60/60

System is designed to cater for fixing a suspended acoustic ceiling from a fire-rated ceiling above. For furred system - fire-rated ceiling is fixed to purlins supporting a metal deck roof at 1200mm centres using extended Rondo clips P.N.394 fastened direct to web of purlin. For direct fixed system - fire-rated ceiling is fixed directly to purlins.

Ceiling (furred) : 2 layers of 16mm Boral Firestop Plasterboard fixed to Rondo furring channel at 600mm max. centres. - Firestop is fixed across supporting member with all end joints fixed on frame, or dry back-blocked or screw fastened to previous layer. Acoustic ceiling suspended from clips screwed to furring channel.

Refer to Boral Plasterboard TecASSIST for additional details.

Total mass of suspended acousticceiling under not to exceed 12 kg/m2 for Direct Fixed System or4.95kg/m2 for Direct Clipped (Furred) System.

Ceilings are not designed for human access or construction and maintenance loadings.

OR

System Selector FRL 60/60/60


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(Test Ref.)

SystemNo.


CS20 1 Hour60/60/60


of fire

CSIRO Opinion FC0-1658


System provides a variety of application configurations using 2 layers of 13mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System.

2 layers of 13mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame.

Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - Brace as required. Flooring over - Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over - Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details.

System provides 30 mins. protection to loaded steel or timber beams above ceiling.


OR OR

OR

OR



Suspended Systems

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13



(Test Ref.)

SystemNo.


CS21 1 Hour60/60/60


of fire



System provides a variety of application configurations using 1 layer of 13mm and 1 layer of 16mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System.

First layer of 13mm and second layer of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame.




OR OR

OR

OR



Suspended Systems

12


13


(Test Ref.)

SystemNo.


CS15 11⁄2 Hour90/90/90


of fire



System provides a variety of application configurations using 2 layers of 16mm or 3 layers of 13mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System.

2 layers of 16mm or 3 layers of 13mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. - Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer - Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed to furring channel system at 600mm max. centres that has been - (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame.


OR OR

OR

OR





Suspended Systems

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(Test Ref.)

SystemNo.

Fire-RatingFRL (mins) Description and Physical Data

CS10 1.5 Hour90/90/90


of fire



3 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame.

Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details.


OR OR

OR


OR



Suspended Systems

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15



Description and Physical Data(Test Ref.)

SystemNo.


CS8



System is designed for fixing a suspended acoustic ceiling from a fire-rated ceiling above. Fire-rated ceiling is a direct fix ceiling system to timber or steel beams or purlins using 3 layers of 16mm Boral Firestop Plasterboard - 1 bottom layer and 2 top layers for furred system or 3 layers for direct fixed system.

Primary System (furred): Top 2 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm maximum centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm.

Secondary System (furred): Bottom layer of 16mm Boral Firestop Plasterboard fixed to Rondo furring channel at 600mm maximum centres. Firestop is fixed across supporting member with all end joints fixed on frame or dry back-blocked.

Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a minimum radius of 6000mm - brace as required. Flooring over; Concrete Slab or minimum 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Acoustic ceiling suspended from clips screwed to furring channel.

Refer to Boral Plasterboard Sales Offices for additional details.

1.5 Hour90/90/90


of fire

OR

Total mass of suspended acousticceiling under not to exceed12 kg/m2 for direct fixed system or 4.95kg/m2 for furred system.

Ceilings are not designed for human access or for construction and/or maintenance loadings.


16


17


(Test Ref.)

SystemNo.


CS6 2 Hour120/120/120


of fire



System provides a variety of application configurations using 4 layers (2 bottom & 2 top) of 16mm Boral Firestop Plasterboard fixed as a Suspended, Direct Fixed or Furred System.

Primary System: Top 2 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max.centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame.

Secondary System: Bottom 2 layers of 16mm Boral Firestop Plasterboard fixed to Rondo furring channel or resilient channel at 600mm max. centres. Firestop is fixed across supporting member with all end joints fixed on frame dry back-blocked or screw laminated to previous layer. Stagger all joints min. 200mm.

Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame.


Refer to Boral Plasterboard TecASSIST for further details.



Suspended Systems

OR OR

OR

OR



16


17



(Test Ref.)

SystemNo.

Fire-RatingFRL (mins) Description and Physical Data

CS22 2 Hour120/120/120


of fire



3 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm. Fixing to framework to be as a follows: Fixed directly to timber or steel beams or purlins at 600mm max. centres - or - Fixed at 600mm max. centres to furring channel system that has been; (a) clipped or direct fixed to a steel or timber floor or ceiling frame at 1200mm max. centres - or; (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a concrete soffit, steel or timber floor or ceiling frame.

Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Refer to Boral Plasterboard TecASSIST for additional details.


OR OR

OR


OR



Suspended Systems

18


19


CS7


of fire



(Test Ref.)

SystemNo.


2 Hour120/120/120

Total mass of suspended acousticceiling under not to exceed 4.95kg/m2

Ceilings are not designed for human access or for construction and/or maintenance loadings.

System is designed for fixing a suspended acoustic ceiling from a fire-rated ceiling above. Fire-rated ceiling is a direct fix ceiling system to timber or steel beams or purlins using 4 layers (2 bottom & 2 Top) of 16mm Boral Firestop Plasterboard.

Primary System: Top 2 layers of 16mm Boral Firestop Plasterboard fixed to a supporting framework of timber or steel at 600mm max. centres. Firestop is fixed across supporting members with all end joints on frame, or dry back-blocked or screw fastened to previous layer. Stagger all joints min. 200mm.

Secondary System: Bottom 2 layers of 16mm Boral Firestop Plasterboard fixed to Rondo furring channel at 600mm max. centres. Firestop is fixed across supporting member with all end joints fixed on frame, or dry back-blocked or screw laminated to previous layer. Stagger all joints min. 200mm.

Ceiling System may be fixed to a pitch in the range of 0o - 70o from the horizontal or to a min. radius of 6000mm - brace as required. Flooring over; Concrete Slab or min. 12mm plywood, timber or particle board fixed direct to frame. Roofing over; Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame. Acoustic ceiling suspended from clips screwed to furring channel.

System provides 120 mins. protection to loaded steel or timber beams above fire-rated ceiling.

Refer to Boral Plasterboard TecASSIST for additional details.



18


19


Standard Construction


OR

Roofing or floor

35mm min.

Steel or timber flooror ceiling framingmember with orwithout steel battens@ 600mm max.centres

1, 2 or 3 Layers of BoralFirestop Plasterboardas required

Note: Systems using 1, 2 or 3 layers of Boral Firestop Plasterboard provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system.

Tape and finish face layeronly - with selected BoralPlasterboard system

1, 2 or 3 layers of Boral FirestopPlasterboard fixed transverse toframing @ 600mm max.centres.All joints staggered min. 200mm.

Screws 10mm to16mm from edges

Timber or steel roof or floorframing @ 600mm max. centres

End joints formed on framing membersand staggered, otherwise end joints onfirst layer must be back blocked. Whereapplicable, second and third layersshould be screw laminated to previouslayer @ 200mm max. centres.

200mm

150mm

Plasterboard fasteners to be 200mm centres in fieldand 150mm max. centres on end joints - staggered.Refer to Page 4 for fastener details.

max.

20


21



Direct Clipped (Furred) Systems

OR

Roofing or floor35mm min.

Steel or timber flooror ceiling frame

Rondo P.N. 129 FurringChannel @ 600mmmax. centres

Rondo P.N. 226 or 394 Clip @600mm max. centres fastenedto timber framing member withmin. two 2.8 x 30 plasterboardnails or equivalent

Rondo P.N. 226 Clip @600mm max. centres fastenedto steel framing member withmin. two 10 x 16 Type Dscrews or equivalent

1, 2 or 3 Layers of BoralFirestop Plasterboardas required

Note: Systems using 1, 2 or 3 layers of Boral Firestop Plasterboard provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system.

Rondo P.N. 237, 226 or 394Clip @ 1200mm max. centres



200mm

150mm

Timber or steel roof or floorframing @ 1200mm max. centres

Rondo P.N. 129Furring Channel@ 600mm max.centres

1, 2 or 3 layers of Boral FirestopPlasterboard fixed transverse toFurring Channels @ 600mm max.centres.All joints staggered min. 200mm.

End joints formed on Furring Channelsand staggered, otherwise end joints onfirst layer must be back blocked. Whereapplicable, second and third layersshould be screw laminated to previouslayer @ 200mm max. centres.


max.

20


21



Suspended Systems


Rondo P.N. 139 Joiner

Rondo P.N. 2534 Clip

Rondo P.N. 128 TopCross Rail @ 1200mmmax. centres

Rondo P.N. 129 FurringChannel @ 600mmmax. centres

1, 2 or 3 layers of BoralFirestop Plasterboardas required

Rondo P.N. 274 Suspension Bracket fastenedto steel member with min. two 10 x 16 Type Dscrews or equivalent

Rondo P.N. 121Suspension Rods @1200mm max. centres OR OR


Rondo P.N. 274 SuspensionBracket fastened to timberframing with min. two2.8 x 30 plasterboard nailsor equivalent

Rondo P.N. 247Suspension Bracketanchored to concretesoffit to engineer’s detail


1, 2 or 3 layers of Boral FirestopPlasterboard fixed transverse to FurringChannels @ 600mm max.centres. Alljoints staggered min. 200mm.

Rondo P.N. 129 FurringChannel @ 600mm max.centres


End joints formed on Furring Channels andstaggered, otherwise end joints on first layermust be back blocked. Where applicable,second and third layers should be screwlaminated to previous layer @ 200mmmax. centres.


Rondo P.N. 139Joiner Clip

Rondo P.N. 2534Suspension Clip

1200mm max.

1200mm max.

Rondo P.N. 121Suspension Rods@ 1200 mm max.centres

200mm

150mm


max.

Note: Systems using 1, 2 or 3 layers of Boral Firestop Plasterboard provide varying FRL and Acoustic ratings. Refer to the "System Selector Table" on Page 8 for selection of the required system. Refer to Rondo catalogue - "Suspended Grid Design".

22


23



Acoustic Suspended CeilingsNote: In each of the following acoustic suspended systems, suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads.

FurredDirectFastened

2 x 16mm or 3 x 13mm BoralFirestop Plasterboard

Rondo P.N. 247 Suspension Bracketscrew fixed to framing with 12 x 75type 17 roofing screw

0 to 70o o Roofing or floor35mm min.

Rondo P.N. 129 Furring Channel@ 600mm max. centres

2 x 16mm or 3 x 13mm BoralFirestop Plasterboard

Suspension Rods @ 1200mmmax.centres

Acoustic ceiling total mass not toexceed 12Kg/m for direct fastenedsystem

2Acoustic ceiling total massnot to exceed 4.95Kg/m forfurred system

2

Timber or steel framing member

Rondo P.N. 247 Suspension Bracketscrew fixed to Furring Channel with12 x 50 type 17 roofing screw

Rondo P.N. 394 Clip @ 1200mmmax. centres fastened to steelframing member

FRL 60/60/60 - System CS12

FurredDirectFastened

3 x 16mm Boral FirestopPlasterboard

0 to 70o oRondo P.N. 237 Clips @1200mmmax. centres fixed to joist or purlinwith 12 x 60 type 17 roofing screw


Rondo P.N. 129 Furring Channel@ 600mm max. centres

2 x 16mm Boral Firestop Plasterboard


Rondo P.N. 247 Suspension Bracketscrew fixed to furring channel with12 x 40 type 17 roofing screw

Acoustic ceiling total mass not toexceed 4.95Kg/m for furred system2

FRL 90/90/90 - System CS8

Timber or steel framing member

Rondo P.N. 247 Suspension Bracketscrew fixed to framing with 12 x 75type 17 roofing screw

Suspension Rods @ 1200mmmax.centres

Acoustic ceiling total mass not toexceed 12Kg/m for direct fastenedsystem

2

22


23


Cable and Loaded Penetrations

Roofing or floorBatten as required

Framing Member

Rondo P.N. 274 Suspension Bracket

Rondo P.N. 121 Suspension Rod

Rondo P.N. 2534 Suspension Clip

Cable

1, 2 or 3 layers of Boral FirestopPlasterboard as required

Rondo P.N. 129 Furring Channel

Rondo P.N. 128 Top Cross Rail


Cable Penetration Detail

Fyre Spring by PromatFyreguard. Refer to PromatFyreguard Pty Ltd. for details.

Promaseal Fire Mastic byPromat Fyreguard

Roofing or floorBatten as required

Framing Member




Two 100 x 100mm pieces of16mm Boral Firestop withlower piece slotted for cable

Cable set in Boral CorniceAdhesive or approvedfire-rated sealant

Cable


Rondo P.N. 128 Top Cross RailRondo P.N. 139 Joiner


Alternative Cable Penetration Detail

Roofing or flooringBatten

Framing member

Rondo P.N. 274 Suspension BracketSteel Suspension Rod and Bracketto engineer’s detailsRondo P.N. 121 Suspension Rod





1, 2 or 3 Layers of Boral FirestopPlasterboard as required

6-10mm gap

Typical Loaded Penetration Details

Rod set in Boral Cornice Adhesiveor approved fire-rated sealant

24


25


Pipe Penetrations

A A

13mm max.

520mm


Framing member


100mm max. diam. Copper Pipe






1 or 2 layers of Boral FirestopPlasterboard as required

View AA

15mm min.

Typical Copper Pipe Penetration Detail - FRL 30/30/30 and FRL 60/60/60

Cage by Promat Fyreguard(refer to Promat Fyreguard tests)50 x 20mm Promaseal IBSby Promat Fyreguard

Promaseal Fire Masticby Promat Fyreguard


Framing memberRondo P.N. 274 Suspension Bracket

uPVC Pipe independently supportedabove ceilingRondo P.N. 121 Suspension Rod





Steel Toggle Bolt


Typical PVC Pipe Penetration Detail

Retrofit Fyre Collar by Promat Fyreguard.Refer to Fyreguard Pty Ltd.for details.

Promat


Framing memberRondo P.N. 274 Suspension Bracket

Water pipe independently supportedabove ceiling




Rondo P.N. 139 JoinerRondo P.N. 129 Furring Channel

Approved fire grade sealant

Sprinkler head


Typical Sprinkler Pipe Penetration Detail

24


25


Ceilings to a Radius

Roofing or flooring

Batten as required

Framing member

Rondo P.N. 128 TopCross Rail or steelangle by others rolledto required radius

Rondo P.N. 139Joiner riveted toTop Cross Rail

Rondo P.N. 129Furring Channel


Rondo P.N. 274Suspension Bracket

Rondo P.N. 121Suspension Rod


Caulk all perimeter junctionswith Boral Cornice Adhesive

Taped Joint

6-10mm

Suitable screw to preventsuspension clip sliding upTop Cross Rail

6000mm

min. radius

to face of plasterboard

26


27


Change of Pitch

Angle Cleat

Roofing or flooringBatten as required

Framing member


Rondo P.N. 121Suspension Rod @1200mm centres max.



Rondo P.N. 139 Joinerpop riveted to TopCross Rail

Rondo P.N. 129 FurringChannel


Cornice Adhesive

Tape and set joint

Rondo P.N. 128 TopCross Rail

Continuous Angle 0.75B.M.T. Galv. M.S. 50mmmin. leg length

0-900

20mm max.

600mmmax.

Detail A

Angle Cleat


Framing memberRondo P.N. 274Suspension Bracket



Rondo P.N. 139 Joinerpop riveted to TopCross Rail


Cornice Adhesive Tape and set joint



0-900

20mm max.

600mmmax.

Detail B


Angle Cleat


Framing member




Rondo P.N. 139 Joinerriveted to Top Cross Rail


Cornice AdhesiveTape and set joint



20mmmax.

20mmmax.

0-1800

Suitable screw on highside of each clip toprevent suspension clipsliding up Top Cross Rail

Detail C


26


27


Bulkheads

Typical Bulkhead - Detail B

600mmmax. drop

Roofing or flooring

Rondo P.N. 274 SuspensionBracket


Additional Rondo P.N. 121Suspension Rod





Rondo P.N. 128Top Cross Rail

75 x 75 x 0.75mm BMTContinuous GalvanisedSteel Angle

Corner Bead if Required

Framing Member


Typical Bulkhead - Detail A

Roofing or flooring


Rondo P.N.121Suspension Rod

Additional Rondo P.N.121Suspension Rod



Rondo P.N. 139 Joiner poprivetted to Top Cross Rail






50mm x 50mm x 0.75mmGalvanised Steel Angle

Corner Bead if Required

Framing Member

25 x 25 x 0.75mm BMTGalvanised Angle poprivetted to Top Cross Rail

600mmmax. drop

28


29


Bulkheads

Skylight Dome

Skylight Framing



Framing Member

Timber or Steel StudFrame @ 600mmcentres

50 x 50 x 0.75mmcontinuous galv.Steel Angle

External Corner Beadif required600mm max. centres

Rondo P.N. 139Joiner






Roof Battens

Upstand Framing

Flashing

Roofing as required

600mmmax. drop

Typical Bulkhead/Lightwell Detail

28


29


Light Recess

Framing Member

Prefabricated MetalLight Stirrup

Flooring or Roof

Rondo P.N. 274Suspension BracketRondo P.N. 121

Suspension Rodspaced to supportany additional massdue to light fitting





100mm

450mm

Light Fitting Box

Support Mounting

Typical Light Recess - Detail A


Typical Light Recess - Detail B

Timber Floor

TrimmerFloor Joist

Trimmer

Light Fitting

50mm x 50mm x 0.75mmGalvanised Steel Angles

Floor or CeilingStructure

Rondo P.N. 274Suspension BracketRondo P.N. 121

Suspension Rodspaced to supportany additional massdue to light fitting

64CS Stud Frame@ 600mm centres


50 x 50 x 0.75mmAngle fixed to Studand Top Cross Rail

50 x 50 x 0.75mmGalv. Steel Angle

75 x75 x 0.75mmGalv. Steel Angle





100mm

Light Fitting Box

Support Mounting

Additional RondoP.N. 121 SuspensionRod

Typical Light Recess - Detail C

30


31


Access Hatch

600mm

670mm

B B

A

A

Section B-B

Additional TopCross Rail


Ceiling FurringChannel

2 x 13mm BoralFirestop Plasterboard


750mm

540mm400mm

900mm

50mm

50mm

300mm

390mm

450mm

Section A-A

50mm

50mm

Typical Access Hatch - Detail A

670mm lengths ofTop Cross Rail

30


31


Access Hatch

Frame around openingwith 25mm x 25mm x 0.75Galvanised Steel Angle



FRL 30/30/30 and FRL 60/60/60:1 layer 16mm Boral Firestop PlasterboardFRL 90/90/90 and FRL 120/120/120:2 layers 16mm Boral Firestop Plasterboard

Roofing or flooring

Roofing or flooring

Batten as required

Framing member

Framing member







10 x 38 Type L screws@ 200mm max. centres

External CornerBeads if required

Max. 500 x 500Panel

3mm gap

Typical Access Hatch - Detail B

Corner bead

64mm Track Sectionframing opening fixed toFurring Channel with25@ 200mm centres

mm Type S screws

75mm x 1mm thick SteelSection spot welded toAngles @ 200mm max.centres

Access Hatch framedwith Rondo 64CT Trackor Timber Section min.100mm x 50mm fixedto ceiling /roof framing

Promat Fyreguard AccessHatch max. 500 x 700mm

Roofing or flooring

Framing member




Rondo P.N. 139Joiner Rondo P.N. 129

Furring Channel

FRL 30/30/30:1 x 16mm BoralFirestop PlasterboardFRL 60/60/60:2 x 16mm BoralFirestop Plasterboard


Type S screws @ 200mmcentres securing Access HatchAssembly to 64mm Track Section

Type S screws @ 200mmcentres securingPlasterboard to 64mmTrack Section

Typical Access Hatch - Detail C (for up to FRL 60/60/60)

Refer to Promat Fyreguard Pty. Ltd. for installation details.

Promat Fyreguard AccessHatch max. 500 x 700mm

32


33


Beam Protection

Steel Beam

Roofing or Flooring

Rondo P.N. 226or 394 Direct FixingClip


50 x 50 x 0.75mm or75 x 75 x 0.75mmcontinuous Galv.Steel Angles asrequired

50 x 50 x 0.75mmcontinuous Galv.Steel Angles

1, 2 or 3 layers ofBoral FirestopPlasterboard asrequired


Furring ChannelStirrups @ 600mmcentres

Corner Beadif required

Framing member

Note: Vertical plasterboard fixed as per ceiling

Typical Steel Beam Protection Detail

Steel Beam

Roofing or Flooring Rondo P.N. 226 or394 Direct FixingClip


50 x 50 x 0.75mmcontinuous Galv.Steel Angles

Furring ChannelStirrups @ 600mmcentres

Corner Beadsif required

Framing members@ 600mm centres

Type S screws as required@ 200mm max. centres

Typical Steel Beam Protection Detail - Perspective View




32


33


Beam Protection

50mmmin.

Plasterboard Nailsas required @200mm centres

Timber Beam

Timber Floor

Rondo P.N. 226 or394 Direct FixingClip



Framing member


Typical Timber Beam Protection - Furred System


1, 2 or 3 layers ofBoral FirestopPlasterboard asrequired - max.span of 600mm forceiling layers

Rondo P.N. 226 or394 Direct FixingClip


Roofing or Flooring

Timber Beam

Framing members@ max. 600mmcentres


Type S screws as required@ 200mm max. centres



Typical Timber Beam Protection - Perspective View - Furred System

Plasterboard Nails as required@ 200mm centres


34


35


Beam Protection

50mmmin.

Plasterboard Nailsas required @200mm centres

Timber Floor


Framing member


1, 2 or 3 layers ofBoral FirestopPlasterboard asrequired - max.span of 600mm forceiling layers

Typical Timber Beam Protection - Direct Fixed System

50 x 50 x 0.75mmor 75 x 75 x 0.75mmcontinuous Galv.Steel Angles asrequired

Timber Beam ofnot less than500kg/m averagedensity

3

Roofing or Flooring

Timber Beam ofnot less than500kg/m averagedensity

3

Framing members@ max. 600mmcentres




Typical Timber Beam Protection - Perspective View - Direct Fixed System

Plasterboard Nails as required@ 200mm centres


34


35


Joints

Framing member

Rondo P.N. 274 Suspension BracketRondo P.N. 121 Suspension Rod@ 1200mm max. centres



Rondo P.N. 128 or 127 Top Cross Rail

Rondo P.N. 128 or 127 Top Cross Rail







FRL 30/30/30: 1 x 16mm BoralFirestop Plasterboard.FRL 60/60/60 and FRL 90/90/90:2 x 16mm Boral FirestopPlasterboard.

FRL 30/30/30: 1 x 16mm BoralFirestop Plasterboard.FRL 60/60/60 and FRL 90/90/90:2 x 16mm Boral FirestopPlasterboard.

120mm

120mm

100mm max. 50mm

50mm

20mm

20mm

20mm max.

20mm max.

View parallel toFurring Channel

View perpendicularto Furring Channel

Minimum 6 x 50 Type L screws toone side only @ 200mm max. centres

Rondo P.N. P35 Expansion JointBead if required

Roofing or flooring

Typical Movement Joint Detail

Typical Control Joint Detail

Note: 1. Locate joint centrally between framing members when parallel to framing.2. Minimum of one layer of Boral Firestop Plasterboard continuous over joint.3. Ensure single layer system is back blocked.


10-12mm

Type L screws @ 200mm centres

Approved fire grade sealant

Framing

36


37


Perimeter Details

Alternative Detail

6-10mm

6-10mm

Roofing or flooring

Framing member

Batten as required


Rondo P.N. 121 Suspension Rod@ 1200mm max. centres

Plasterboard Cornice or tapedsquare set finish

Continuous Rondo P.N. 553 Angleor Steel Stud fastened to wall@ 600mm max. centres

Rondo P.N. 2534 Suspension ClipRondo P.N. 128 Top Cross Rail


Approved Sealant




100mmmax.

100mmmax.

Boral Cornice Adhesive

Typical Perimeter Detail - FRL 30/30/30

36


37


Perimeter Details

6-10mm

6-10mm

6-10mm

See AlternativeDetails below

Shadowline TrimWall Trim

Roofing or flooring

Framing member

Batten as required



Plasterboard Cornice or tapedsquare set finish


Rondo P.N. 2534 Suspension ClipRondo P.N. 128 Top Cross Rail


Boral Cornice Adhesive or CeramicFibre Blanket or approved sealant


2 or 3 layers of BoralFirestop Plasterboardas required

2 or 3 layers of BoralFirestop Plasterboardas required

2 or 3 layers of Boral FirestopPlasterboard as required

90mm PlasterboardCornice

Cornice Adhesive

10mm Boral StandardCore Plasterboard

Rondo P.N. DU05Wall Trim

Framing Top Plate 45mm thick

Plasterboard Cornice

25 x 25mm fillet ofCornice Adhesive

25 x 25mm fillet ofCornice Adhesive

Rondo P.N. 554 Angle

Rondo P.N. P50Shadowline Trim10mm

100mmmax.

100mmmax.

3-10mm

16mm max.

5mm max.o/hang

Plasterboard CorniceDetail A

Plasterboard CorniceDetail B


22mm Promaseal IBSby Promat Fyreguard

38


39

Non Fire-rated Ceiling Systems

Perimeter Details

Roofing or flooring

Framing member

Framing



Cornice Adhesive

Plasterboard Cornice ortaped square set finish

Optional Plasterboard Corniceor taped square set finish





Approved fire-rated sealant




Alternative Detail

600mm max.

100mm max.

6-10mm

6-10mm


38


39


IntroductionBoral Plasterboard Non Fire-Rated Ceiling Systems provide a variety of application configurations using 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed as a Suspended, Direct Fixed or Furred System.Note:

• These ceiling construction details are not suitable for external ceilings.

• Thermal or acoustic insulation (max. 3kg/m2) may be placed above ceiling.

Early Fire Hazard PropertiesBoral Plasterboard Standard Core, tested for early fire hazard properties in accordance with Australian Standard 1530.3 - 1982, recorded the following results:Ignitability (0-20) -14; Smoke Developed (0-10) -2; Spread of Flame (0-10) -0; Heat Evolved (0-10) -1.

Component Mass• One layer of 10mm Boral Standard Core

Plasterboard has a mass of approximately 6.5kg/m2;

• One layer of 13mm Boral Standard Core Plasterboard has a mass of approximately 8.5kg/m2;

• One layer of 10mm Boral Unispan Plasterboard has a mass of approximately 6.7kg/m2;

• Rondo Furring Channel Part No. 129 has a mass of approximately 0.5kg/m;

• Rondo Top Cross Rail Part No. 128 has a mass of approximately 0.7kg/m.

Systems MassThe following table shows mass calculations based on the above approximations:

DecorationThe ceiling system is flush jointed to provide a smooth, continuous surface ideal for all forms of decoration. Care must be taken to apply paint or other finishes strictly in accordance with the Manufacturer’s instructions.

General Construction DetailsMovement joints should be put at building construction joint locations. Control joints should be spaced at not more than 12 metre max. centres in either direction or 15 metre centres where there is perimeter relief.

Where necessary specify a furred system to minimise the risk of ceiling damage due to frame movement caused by structural, thermal and seasoning effects.Caution:Boral Plasterboard ceiling systems are not designed to support the weight of maintenance personnel, additional plant or storage of goods.

Materials• 10mm or 13mm Boral Plasterboard Standard

Core or 10mm Boral Unispan.• Boral Plasterboard Jointing Compound

(as preferred from the Boral Plasterboard Jointing Compound range).

• Boral Plasterboard Cornice 55mm, 75mm & 90mm if required, applied using Boral Plasterboard Cornice Adhesive or Cornice Adhesive Mid Set.

• Boral Plasterboard Stud Adhesive.• Perforated paper tape.• An approved caulking compound for

caulking gaps at ceiling perimeters.• Screws and nails as specified.• Rivets (all steel).

Refer to Safety Data Sheets (available from Boral Plasterboard Sales Offices) or the container labelling, when handling relevant products.

All materials must be carefully stored and protected on the construction site. Damaged plasterboard sheets and accessory materials must not be used. Plasterboard is to be stacked flat and protected from moisture and must not be used where it will be exposed to excessive moisture.

Rondo Fixing and Suspension ComponentsManufactured by Rondo Building Services Ltd. and marketed by Boral Plasterboard:

129 - Furring Channel127 - Top Cross Rail139 - Joiner to Top Cross Rail237, 226, 394 - Direct Fixing Clips247 or 274 - Suspension Bracket121 - Suspension Rod2534 - Adjustable Suspension ClipP32 - Corner Bead553 - All Steel Angle 35x35x0.75554 - All Steel Angle 50x50x0.75P35 - Rondo Control Joint


PlasterboardLayers

PlasterboardMass

SuspensionSystem Mass*

1 x 10mm1 x 13mm1 x 10mm Unispan

6.5kg/m2

8.5kg/m2

6.7kg/m2

8.5kg/m2

10.5kg/m2

8.7kg/m2

* The suspension system mass is approximate only and based on a Rondo steel suspension system with Top Cross Rails @ 1200mm centres, Furring Channels @ 600mm max. centres (450mm max. centres for 10mm Standard Core Plasterboard) and an average drop.

40


41



InstallationFurring channel and framing supports to be taken to and provided within 50mm of ceiling perimeter - min 15mm end clearance to walls.

Suspension Systems• Attach suspension rods to suspension rod

brackets that are anchored to structural framing or concrete soffit, at typically 1200mm centres in each direction.

Note: Each suspension rod bracket fastening must be capable of supporting a weight of 143kg plus the self load of the system and pressure loads.

• Attach suspension clips to top cross rails, and fit suspension clips to rods. Adjust the rails to a true and level plane.

• Position furring channels at 600mm maximum centres (see note) and attach to top cross rails with a locking clip at each intersection.

• Join lengths of furring channel with furring channel joiners, ensuring the joins are staggered.

• Extra suspension components must be provided to support light fittings, bulkheads and other fixtures. Spans and spacings may be reduced if required.

Direct Clipped (Furred) SystemsPosition furring channels at 600mm maximum centres (see note) and attach channels to structural framing with direct fixing clips at typically 1200mm centres, or to concrete soffit with anchor clips fastened to soffit at typically 1200mm centres. Ensure that furring channels are fixed to a true and level plane. Longer spans may be used - refer to Manufacturer's details.

Direct Fixed SystemsWhere fixing direct to timber or steel framing without furring channel, framework should not exceed 600mm spacing (see note). Spans and spacings may be reduced if required.

Plasterboard Application• Plasterboard may be fixed with nails,

screws or a combination of adhesive and fasteners. A combination of adhesive and fasteners is the preferred method for general application.

• Fix Boral Plasterboard across the Furring Channel, Timber or Steel framing.

• Butt or end joints not formed on framing members should be back-blocked as described under "Back-blocking".

• Tape and finish with preferred Boral Plasterboard jointing system.

Adhesive/ Fastener Fixing• Apply Boral Plasterboard Stud Adhesive

to framing members in daubs measuring 25mm diameter by 15mm high.

• Space daubs of adhesive at 230mm maximum centres.

• Keep daubs approximately 200mm away from the edges of the sheets and the nail or screw fixing points.

• Under slow-drying conditions, keep Boral Plasterboard sheets firm against the adhesive daubs for at least 48 hours. Use temporary blocks fastened through plasterboard to framing members.

• Be sure to fix Boral Plasterboard within thirty minutes of applying adhesive. This will avoid skin forming on the adhesive.

For the number of nails or screws required, and their fixing points, refer to the following tables and illustrations.

PlasterboardWidth

900mm1200mm1350mm

FAF/FAFFAAF/FAAFFAAF/FAAF

FAFAFFAFAFAFFAFAFAF

Conventional Spacing 1/3 Spacing

F = Nail or Screw A = Adhesive F/F = 2 Nails or 1 Screw

PlasterboardWidth

SingleNails

Double Nails or Single Screws

900mm1200mm1350mm

678

456

Minimum Fixing Points per Sheet Width

All Mechanical Fixing Layout

Fasteners

Adhesive and Fastener Layout

Note: Furring channel spacing to be 450mm for 10mm Standard Core Plasterboard.

Smooth Shank Gold Passivated

Annular Ring Shank and

Uninail

Layers of Plasterboardx Thickness

1 x 10mm

1 x 13mm

40mm¹30mm²40mm¹30mm²

1 = Softwood 2 = Hardwood

30mm¹30mm²30mm¹30mm²

Galvanised 2.8mm

Diameter 40mm¹30mm²40mm¹30mm²

Nails - Timber Frame

Type W

6 - 9 x 32mm6 - 9 x 32mm

1 x 10mm1 x 13mm

Screws - Timber Frame Screws - Steel Frame

Type S or Type D

Layers of Plasterboardx Thickness

6 - 18 x 25mm*6 - 18 x 25mm*

Screw identification is given as:(min. gauge) - (threads/inch ±1) x (min. length).

* For ease of construction with framing steel gauges of less than 0.8mm BMT, use 30mm minimum length screws.

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41



Fixing With Nails OnlyThis method normally applies where adhesive cannot be used - e.g., over existing linings or over a water vapour barrier.

• Keep Boral Plasterboard sheets in firm contact with framing member while nails are being driven.

• Drive nail heads slightly below the surface of the sheet without puncturing the face linerboard.

• Along the perimeter of sheets, space nails at between 10mm minimum and 16mm maximum away from the edges and ends of the sheet.

• Skew-nailing is not permitted.

For single nailing, space nails at 200mm maximum centres. For double nailing, space nails at 300mm maximum centres with single nails or single screws at perimeter only.

Fixing With Screws OnlySpace screws at 300mm maximum centres in field of board and 200mm maximum centres on end joints (staggered). Space screws at 10mm - 16mm from the edges and ends.

When screw-fixing single layers of Boral Plasterboard sheets:

• Hold plasterboard sheets firmly in place against the framing members while driving in the screws.

• Adjust screw gun correctly so as to drive the screw heads below the surface of the sheet without puncturing the face linerboard.

• Press tip of screw firmly into the face linerboard before driving it home.

• Always drive screws with the shank at right angles to the face of the sheets.

• Wherever possible always start from the centre of the sheet towards the outer edges.

• Position screws on adjacent edges opposite each other.

CL

CL

CL50-75mm

4 daubs of adhesive, 25mm dia. x 15mm high,for sheets 1200mm and 1350mm wide

200mm

200mm

Daubs of adhesive 200mmfrom edge of sheets Centre line of sheet

Centre line of sheets

CL

CL

CL

Stagger butt jointsbetween framing

Double Nailing Only:50mm - 75mm apart at300mm max. centres Screws Only:

300mm max. centres

Single Nailing Only:200mm max. centres

Along perimeter of sheet, singlenails or single screws only at10mm - 16mm from edge

Adhesive Fixing

Screw or Nail Fixing

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Back-blocking Ceilings Under Floors and Low-Pitched RoofsThis can be carried out from the floor below, one step at a time as follows (see Figure 2):

• Fix the first Boral Plasterboard sheet.• Cut the next sheet.• Apply Boral Plasterboard Cornice Adhesive

to back-blocks and place them between framing members along the full length of the sheet already fixed.

• Immediately after all blocks are in place, install the next sheet.

• Continue as above across the entire ceiling area.

• When complete, and the adhesive has thoroughly set, apply the flush-jointing.

Back-blocking Butt JointsBack-block butt joints as follows (see Figure 3):

• Fix ceiling sheets with ends butted neatly together. The butt joint should fall within 50mm of the mid-span point between framing members.

• Use battens and packers to support and deflect the sheet ends upwards about 2mm.

Figure 2.

Back-blocks in place

Boral Plasterboard ceiling

Ceiling joist or bottom chordof roof truss

Wall

Figure 1.

Back-blocking piecesof Boral Plasterboardsheet 200mm widemin. glued withCornice Adhesive

Roof truss

Boral Plasterboardceiling


Back-blockingBack-blocking is a mandatory fixing requirement where specified in the Australian StandardAS/NZS 2589.1:1997.

Failure to provide back-blocking installed as per AS/NZS 2589.1:1997 may result in liability for any associated costs relating to maintenance and/or rectification caused by jointing defects.

Back-blocking substantially reduces call-backs, in particular for cracking and peaking joints.

Recessed Joints in CeilingsAny area containing three or more recessed joints must be back-blocked as follows (see Figure 1):

• Cut back-blocking pieces from Boral Plasterboard sheet to sizes no less than 200mm wide and in lengths that will fit loosely between the framing members.

• Prepare Boral Plasterboard Cornice Adhesive in a clean container with sufficient water to make a stiff paste of smooth consistency.

• Apply adhesive over the full face of the back-blocking pieces using a notched spreader to form beads of 6mm x 6mm at approximately 20mm centres and at right angles to the joint.


• Fix the next sheets immediately after the blocks are in place.

Back-blocks in ceilings may be cemented into position from within the roof cavity using a more fluid adhesive mix and pouring it onto the top of the ceiling join before seating the back-blocks onto the adhesive.

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43


Back-blocking Dos & Don'ts• Back-blocking must be installed at the fixing

stage.• Joints must not be set prior to back-blocking.• Do not use plaster in its advanced setting

state or any dry mix compound for back-blocking. Dry or partly dry compounds combined with ceiling temperatures may cause premature dry-out and reduced bond.

• Ensure back-blocking is completely dry prior to the taping process.

• Do not use stud adhesive for back-blocking.• Back-blocking strips should not be tight

between framing members.

Figure 3.

Architectural SpecificationBoral Plasterboard Ceilings shown in the relevant drawings shall consist of materials supplied by Boral Plasterboard, fixed and finished in accordance with the instructions contained in Boral Plasterboard Technical Manuals and in TecSYS - a comprehensive technical catalogue on CD-ROM (see back cover for details).

As drawings are updated from time to time, users are advised to check drawing currency before adopting the procedures and details noted thereon.

Rafter or joistBack-block

Temporary battens

PlasterboardTemporary nailing

Cornice adhesive

Packing strip


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OR OR

(Test Ref.)

SystemNo.


CS18 Non FireRatedCeiling





Suspended Systems

OR

OR

System provides a variety of application configurations using 1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed as a Suspended, Direct Fixed or Furred System.

1 layer of 10mm or 13mm Boral Plasterboard Standard Core or 10mm Boral Unispan fixed to a supporting framework of timber / steel at 600mm (450mm for 10mm Boral Plasterboard Standard Core) max. centres. - Plasterboard is fixed across supporting members -Longitudinal joints (along recessed edges) and Butt or End Joints not formed on framing members should be back blocked - Back blocks to be laminated with daubs of Cornice Adhesive - Fixing to framework to be as a follows: Fixed directly to timber / steel beams or purlins at 600mm (450mm for 10mm Boral Plasterboard Standard Core) max. centres - or - Fixed to furring channel system at 600mm max. centres that has been -( a) clipped or direct fixed to a steel or timber floor / ceiling frame at 1200mm max. centres - or - (b) clipped to top cross rails at 1200mm max. centres supported by suspension rod system hung from a conc. soffit, steel or timber floor / ceiling frame.

Flooring over - Concrete Slab or min. 12mm plywood or particle board fixed direct to frame. Roofing over -Concrete Slab, Tile, Aluminium or Steel profiled section fixed to battens or frame.

System Selector

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45


Tape and finish withpreferred BoralPlasterboard system

Screw fastening is illustrated using min. 6 x 32Type W screws for timber or 6 x 25 Type S orType D screws for steel. Screws to be max.300mm centres in field and 200mm max. centreson end joints (staggered). Refer to “PlasterboardApplication” on Page 40 for details of adhesiveor nail fixing.

End joints formed onframing members andstaggered


300mm

200mm

Timber or steel roof orfloor framing @ 600mmmax. centres (450mm max.centres for 10mm StandardCore Plasterboard).

Note: All joints not formedon a framing member mustbe back blocked

1 layer of 10mm or 13mm Boral Standard CorePlasterboard or 10mm Boral Unispan fixedtransverse to ceiling joists.

Back blocks laminated to face sheet withcornice adhesive on all longitudinaljoints and on butt or end joints



OR

Roofing or floor 35mm min.

Steel or timber floor or ceilingframing member with orwithout steel battens @ 600mmmax. centres (450mm max.centres for 10mm StandardCore Plasterboard).

1 layer of 10mm or 13mm BoralStandard Core Plasterboard or10mm Boral Unispan

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Direct Clipped (Furred) Systems

OR

Roofing or floor 35mm min. Steel or timber flooror ceiling frame

Rondo P.N. 129 FurringChannel @ 600mmmax. centres (450mm max.centres for 10mm StandardCore Plasterboard).

Rondo P.N. 226 or 394 Clip @600mm max. centres fastenedto timber framing member withmin. two 2.8 x 30 plasterboardnails or equivalent

Rondo P.N. 226 Clip @600mm max. centres fastenedto steel framing member withmin. two 10 x 16 Type Dscrews or equivalent


Rondo P.N. 226 or 394Clip @ 1200mm max.centres

Tape and finish withpreferred BoralPlasterboard system

End joints formed on FurringChannels and staggered


Timber or steel roofor floor framing @1200mm max. centres

Note: All joints not formedon a Furring Channel mustbe back blocked

1 layer of 10mm or 13mm Boral StandardCore Plasterboard or 10mm Boral Unispanfixed transverse to Furring Channels


Screw fastening is illustrated using min.6 x 25 Type S or Type D screws. Screws tobe max. 300mm centres in field and 200mmmax. centres on end joints (staggered).Refer to “Plasterboard Application” onPage 40 for details of adhesive or nail fixing.

300mm200mm

Rondo P.N. 129 Furring Channel@ 600mm max. centres(450mm max. centres for 10mmStandard Core Plasterboard).

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Suspended Systems



Rondo P.N. 2534 Clip


Rondo P.N. 129 FurringChannel @ 600mmmax. centres (450mm max.centres for 10mm StandardCore Plasterboard)

Rondo P.N. 274 Suspension Bracket fastenedto steel member with min. two 10 x 16 Type Dscrews or equivalent

Rondo P.N. 121Suspension Rods @1200mm max. centres OR OR


Rondo P.N. 274 SuspensionBracket fastened to timberframing with min. two2.8 x 30 plasterboard nailsor equivalent

Rondo P.N. 247Suspension Bracketanchored to concretesoffit to engineer’s detail


Tape and finish withpreferred BoralPlasterboard joiningsystem

1 layer of 10mm or 13mm BoralStandard Core Plasterboard or10mm Boral Unispan fixedtransverse to Furring Channels

Rondo P.N. 129 Furringchannel @ 600mm max.centres (450mm max.centres for 10mm StandardCore Plasterboard)

Rondo P.N. 128 TopCross Rail @ 1200mmtypical centres


300mm

200mm



1200mm typical

1200mm typical

Rondo P.N. 121 SuspensionRods @ 1200 mm typical centresNote: All joints not formed

on a Furring Channel mustbe back blocked


Screw fastening is illustrated using min.6 x 25 Type S or Type D screws. Screws tobe max. 300mm centres in field and 200mmmax. centres on end joints (staggered).Refer to “Plasterboard Application” onPage 40 for details of adhesive or nail fixing.

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QuietZone™ Ceiling Systems





Rondo P.N. 127Top Cross RailContinuous

GalvanisedSteel Angle


Typical Bulkhead Details

Rondo P.N.121Suspension Rod


Rondo P.N. 139Joiner poprivetted toTop Cross Rail




Galvanised Anglepop rivetted toTop Cross Rail

Pop rivet

Pop rivet

1 layer of 10mm or 13mmBoral Plasterboard StandardCore or 10mm Boral Unispanas required


Typical Perimeter Details




1 layer of 10mm or 13mmBoral Plasterboard StandardCore or 10mm Boral Unispanas requiredWall angle trim




Boral PlasterboardCornice


Typical Perimeter and Bulkhead Details

48


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1. Screw fix the mount via the central hole in the rubber element. For fire-rated ceilings, a 25 mm diameter x 2 mm steel washer is required under the fastener head.

2. Use a suitable power tool with an appropriate hex driver and tighten the fastener to a point where there is no compression of the rubber element. Check the pull-out capacity of fastener to ensure correct size is selected.

3. Clip furring channel into the Furring Channel Clip.

CeilingSupport Structure

FurringChannel Clip

Rubber Elementshowing colourcoding dot

Fixing Screw (with25mm dia. Steelwasher wherefire rating required)

RondoFurring Channel

IntroductionThe QuietZone™ systems have been designed to reduce unwanted noise from specific areas of a home. There are three QuietZone™ ceiling systems designed to suit varying budgets and design considerations - these three systems are identified as "Quiet", "Quieter" and "Quietest".

Building a QuietZone™ ceiling requires a little more care and attention to detail than standard systems. Each component in a QuietZone™ System must be securely fixed, necessary services strategically placed and all plasterboard perimeter edges and openings adequately sealed.

Note: QuietZone™ is a registered trademark of Amatek Limited trading as Insulation Solutions.

Boral Acoustic Ceiling MountThe Boral Acoustic Ceiling Mount is used in the QuietZone™ systems and provides a cost effective solution to impact sound insulation for ceilings direct fixed or suspended to either concrete soffits, timber floor joists, roof purlins and the like.

The Acoustic Ceiling Mount significantly reduces transmission of impact sound from many common sources including:

• footfalls;• rain; and• equipment

Other typical applications for the Boral Acoustic Ceiling Mount are in multi-residential apartment construction, cinemas, and areas below a plant room.

Advantages• Easy and quick to install;• Suspended application does not need

additional fixings;• Acoustic Ceiling Mount can be slid along

the top cross rail which allows for easy re-positioning;

• Minimises low frequency “thumps” generated from footfalls on timber floors;

• Fully tested;• Rubber Element is colour coded for easy

identification of load range; and• High load capacity minimises number of

Acoustic Ceiling Mounts required per square metre.

InstallationThe Boral Acoustic Ceiling Mount is designed for use in Rondo's Key-Lock Ceiling Suspension System. Refer to the Rondo catalogue for the spanning and spacing options for furring channels and primary rails.

Direct Fix Application

Components• Furring Channel Clip;• Rubber Element; and• Screw (supplied by others):

- 14-10 x min. 65 mm Type 17 roof screw into timber;

- 12 or 14 gauge x min. 45 mm drill point roofing screw into light gauge steel; or

- “Tapcon” screw into concrete.

ProcedureAssemble the mount as shown in the following illustration.

Introduction

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51


Suspended Application

Components

• Furring Channel Clip• Interchange Clip• Rubber Element

ProcedureAssemble the mount as shown in the following illustration.

RondoTop Cross Rail

FurringChannel Clip

Rubber Elementshowing colourcoding dot

RondoFurring Channel

Interchange Clip

1. Clip the Interchange Clip into the Top Cross Rail.2. Clip furring channel into the Furring Channel

Clip.

PerformanceThe Boral Acoustic Ceiling Mount has been acoustically tested for airborne and impact sound insulation in both the direct fix and the suspended application. Acoustic ratings for the assembly details illustrated below are shown in the following table.

Load RatingsFor both applications, the rubber element comes in a variety of load bearing capacities and is colour coded accordingly. The appropriate element must be used to support the weight of plasterboard being used in the ceiling.

As each layer of plasterboard is fixed to the furring channel, the rubber element will deflect under the load. A maximum deflection of 5 mm will result when the maximum load, as indicated in the following table, is reached. Allowance should be made for deflection when setting out ceiling heights.

Acoustic Ceiling Mount

ColourCoding

Max. Load in kg

Static Deflection

Blue dotWhite dot

1725

5mm5mm

Direct to joist

Plasterboard Fixing Floor Covering Rw IIC

Bare

Bare

Bare

Carpet and underlay

Carpet and underlay

39

57

57

57

57

32

54

82

55

81Suspended via Boral

Acoustic Ceiling Mount

Suspended via BoralAcoustic Ceiling Mount

Direct via BoralAcoustic Ceiling Mount

Direct via BoralAcoustic Ceiling Mount

19mm thick chipboardfloor sheeting

190 x 45mm F7 timberjoists @ 450mm centres

Boral Acoustic CeilingMount direct fixed to orsuspended from joists

Furring Channel clippedinto Acoustic Ceiling Mount@ 600 mm max. centres

Two layers 16mm BoralFirestop plasterboardfixed to furring channel

ACI R2.5 glasswoolblanket

Assembly DetailsFRL 60/60/60

Note: An FRL 90/90/90 system is also available using 2 layers of enhanced firegrade plasterboard.Contact your Boral Plasterboard Sales Office for details.

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Acoustic Selector

QZ4*

System Number andAssembly Details

Floor Covering

RatingWith Insulation

Rw IIC

Insulation

44

62

44

(AO100)

(AO100)

(AO100)

50

50

50

(AO100)

(AO100)

(AO100)

(Test Ref.)

Floor/Ceiling Depthmm

A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor joists

@ 450mm or 600mm centres. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts(1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 1 layer of 10mm Boral Plasterboard SoundStop™screw fixed to furring channel. Insulation in floor/ceiling cavity. Joints finished. Perimeters acoustically sealed.

A

B

C

287

A

B

C

297

A

B

C

297

* The Impact Insulation Class (IIC) shown as a single number representing impact insulation.(1) Resilient channel, at 450mm centres directly fixed to underside of joists, may be used instead of furring channel

fixed with acoustic ceiling mounts. Use of resilient channel will result in lower Rw and IIC ratings.

49

68

49

(AO100)

(AO100)

(AO100)

54

54

54

(AO100)

(AO100)

(AO100)

54

74

54

(AO100)

(AO100)

(AO100)

59

59

59

(AO100)

(AO100)

(AO100)

A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor joists

@ 450mm or 600mm centres. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts(1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 2 layers of 10mm Boral Plasterboard SoundStop™- first layer screw fixed to furring channel, second layer adhesive/screw fixed to first layer. Insulation in floor/ceiling cavity. Joints finished. Perimeters acoustically sealed.

A bare floor (A) or with a covering of carpet and underlay (B) or with ceramic tiles on cement sheet (C) - on 190mm x 35mm timber floor joists @

450mm or 600mm centres. 2 layers of 10mm Boral Plasterboard SoundStop™ to underside of floor between joists and held in place with cleats nailed to side of joists. Furring channel fixed with "blue dot" Acoustic Ceiling Mounts(1) to underside of every third joist spaced at 450mm or every second joist spaced at 600mm. 2 layers of 10mm Boral Plasterboard SoundStop™- first layer screw fixed to furring channel, second layer adhesive/screw fixed to first layer. Insulation in floor/ceiling cavity. Joints finished. Perimeters acoustically sealed.

A B C

A B C

A B C

Quiet Ceiling System

Quieter Ceiling System

Quietest Ceiling System

75 mm Noise Control Batts (glass wool @ nominal 14 kg /m3)



QZ5

QZ6

52


53


Quiet CeilingsThe "Quiet" ceiling system consists of one sheet of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount.

• Fix Furring Channel to ceiling joists at 450mm centres.• For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm centres, fix

ceiling mount to every second joist. • Conventionally fasten single layer of Boral SoundStop to Furring Channel with combination stud

adhesive and supplementary fasteners. Apply stud adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges(10-16mm from edge) and along centreline of sheet to each Furring Channel.

• Floor/ceiling cavity is filled with 75mm noise control batts.

QuietZone™ performance• Rw 50 - Loud speech can be heard but not understood.• IIC 62 - With floor covering of carpet and underlay, walking is heard as low thump.

QuietZone™ Installation

Flooring

Floor joists

75mm Noise Control BattsTM

For ceiling joists @ 450mm centres, fix ceiling mount to every third joist.For joists @ 600mm centres, fix ceiling mount to every second joist.

One layer of BoralPlasterboard SoundStopconventionally fixed to Furring Channels

52


53


Quieter CeilingsThe "Quieter" ceiling system consists of two sheets of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount.

• Fix Furring Channel to ceiling joists at 450mm centres.• For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm centres, fix

ceiling mount to every second joist.• Mechanically fasten first layer of Boral SoundStop to Furring Channel with screws across sheet width

at 300mm max. centres.• Second layer is fixed to first using combination stud adhesive and mechanical fasteners. Apply stud

adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) and along centreline of sheet to each Furring Channel.

• Floor/ceiling cavity is filled with Insulation Solutions’ 75mm Noise Control Batts™.

QuietZone™ performance• Rw 54 - Very hard to hear loud speech.• IIC 68 - With floor covering of carpet and underlay, heavy walking heard as low thump.


FlooringFloor joists


For ceiling joists @ 450mm centres, fix ceiling mount to every third joistFor joists @ 600mm centres, fix ceiling mount to every second joist

300mm min overlap

Screw along centrelineof sheet

Second layer ofBoral Plasterboard SoundStop

First layerof Boral PlasterboardSoundStop screw fastened toFurring Channels

Daubsacross width of sheetat Furring Channel locations

of Stud Adhesive

54


55



Quietest CeilingsThe "Quietest" ceiling system consists of two sheets of 10mm Boral Plasterboard SoundStop fixed to underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard Acoustic Ceiling Mount. Two additional layers of 10mm Boral Plasterboard SoundStop are fixed to underside of flooring with cleats, ensuring a snug fit between joists.

• Fix Furring Channel to ceiling joists at 450mm centres.• For joists at 450mm centres, fix ceiling mount to every third joist. For joists at 600mm

centres, fix ceiling mount to every second joist. • Fasten two layers of 10mm Boral Plasterboard SoundStop to underside of flooring with

cleats.• Mechanically fasten first layer of Boral SoundStop to Furring Channel with screws across

sheet width at 300mm max. centres.• Second layer is fixed to first using combination stud adhesive and mechanical fasteners.

Apply stud adhesive at 230mm max. centres across sheet width, 200mm from edges of sheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) and along centreline of sheet to each Furring Channel.

• Floor/ceiling cavity is filled with Insulation Solutions’ 75mm Noise Control Batts™.

QuietZone™ performance• Rw 59 - Loud speech cannot be heard.• IIC 74 - With floor covering of carpet and underlay, heavy walking heard as very low thump.

Flooring

Floor joists


2 x 10mm layers ofBoral Plasterboard SoundStopto underside of flooring.Hold in place with plasterboardcleats nailed to side of floor joists

For ceiling joists @ 450mm centres, fix ceiling mount to every third joistFor joists @ 600mm centres, fix ceiling mount to every second joist

300mm min overlap

Second layer ofBoral Plasterboard SoundStop

First layer ofBoral Plasterboard SoundStopscrew fastened to Furring Channels

Stud Adhesive daubsacross width of sheetat Furring Channel locations

Screw along centrelineof sheet

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www.boral.com.au

Western Australia53 Attwell Street Landsdale 6065Telephone (08) 9400 2666Fax (08) 9302 1133

ACT7 Barrier Street Fyshwick 2609Telephone (02) 6280 4243Fax (02) 6280 5816

Tasmania93 Albert Road Moonah 7009Telephone (03) 6278 9966Fax (03) 6278 9865

Northern TerritoryCnr Coonawarra Road & Mataram Street(PO Box 38245) Winnellie 0820Telephone (08) 8984 4484Fax (08) 8984 3778

Queensland733 Nudgee Road Northgate 4013

Telephone (07) 3215 2244Fax (07) 3215 2299

New South Wales3 Thackeray Street Camellia 2142

Telephone (02) 9638 0571Fax (02) 9638 5557

South Australia119-121 Bedford Street Gillman 5013

Telephone (08) 8240 8888Fax (08) 8341 1004

Victoria676 Lorimer Street Port Melbourne 3207

Telephone (03) 9214 2138Fax (03) 9646 1912

Export Department676 Lorimer Street

Port Melbourne 3207Telephone (03) 9214 2138

Fax (03) 9646 1109

GuaranteeProducts manufactured and supplied by Boral Australian Gypsum Limited (BAGL) A.C.N. 004 231 976, trading as Boral Plasterboard, are guaranteed to be of consistent quality and free from any defects.

Boral Plasterboard products must be installed using the components and accessories specified and in accordance with the instructions detailed in Boral Plasterboard’s technical literature.

Our products are manufactured to suit the requirements of the building industry in Australia.

Boral Plasterboard may limit its liability under this guarantee to, at its option, the replacement or paymentof the cost of replacing OR supplying equivalent or payment of the cost of supplying equivalent OR therepair or payment of the cost of repairing products found to be defective.

Important NoteThe technical information contained within this manual was correct at the time of printing. Building Systems and details are, however, subject to change. To ensure the information you are using is current, Boral Plasterboard recommends you review the latest building information

© Boral Australian Gypsum limited 2001

available electronically on TecSYS (our technical catalogue on CD) or the Boral Plasterboard Website. Alternatively, contact your nearest Boral Plasterboard Sales Office or TecASSIST (see details below).

Through TecASSIST Boral Plasterboard is demonstrating its commitment to providing excellent technical service and support to design, building and construction professionals Australia wide.

A free-call architectural support line, TecASSIST is available to provide sound advice on all matters relating to drywall plasterboard construction.

Combining years of professional experience with the latest design information and technology, the TecASSIST team has the skills to help you.

Boral Plasterboard TecASSIST phone line is open to receive calls from 8:30am to 4:30pm Monday to Friday, Melbourne time (Victorian public holidays excepted).

FREE-CALL 1800 811 222

24 hour fax: (03) 9645 1812email: [email protected].

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