rondo ceiling systems

400C Issue 1

Plasterboard Ceiling Systems

2

Fire-rated Ceiling Systems

Plasterboard Ceiling Systems

Contents


Standard Ceilings Design ...............................3-7Introduction ................................................... 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 Systems

Standard Ceilings Design ...........................39-43Introduction ................................................. 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 Systems

Introduction ...................................................... 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 Information

Guarantee .......................................... Back CoverTecASSIST Details ............................. Back CoverContact Details................................... Back Cover

3


IntroductionBoral Plasterboard Fire-rated Ceiling Systemshave been designed to provide fire resistanceratings of FRL 30/30/30, FRL 60/60/60, FRL 90/90/90and FRL 120/120/120. Systems are also availableto provide 30, 60, 90 or 120 mins. resistance toincipient spread of fire.

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

Ceiling systems may be fixed as either a DirectFixed System, Suspended System, or DirectClipped (Furred) System.

Note:• Where illustrations in this manual show a

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

• These ceiling construction details are notsuitable 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 Cablepenetrations, Loaded penetrations, ControlJoints, Protection to Steel & Timber Beams,Changes in ceiling slope direction and avariety 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 fireopinion FCO-0568.

Boral Plasterboard FRL 60/60/60 Ceiling Systems:Appraised by the CSIRO Division of Building,Construction and Engineering and based on firetests; SI 23, SI 736, SI 1761, SI 1891,TR 238(L),TR 336(L) and FSH-0597. These systems arecovered 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 firetests; SI 23, SI 710, SI 736, SI 1761 and SI 1891.These systems are covered and validated by fireopinion FCO-1856.

Standard Ceilings Design

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

Early Fire Hazard PropertiesBoral Plasterboard Firestop, tested for Early FireHazard Properties in accordance with AustralianStandard 1530.3 - 1989, recorded the followingresults:

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 approximately13kg/m2;

• One layer of 13mm Boral FirestopPlasterboard has a mass of approximately10.5kg/m2;

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

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

Systems MassThe following table shows mass calculationsbased on the above approximations:

DecorationThe ceiling system is flush jointed to provide asmooth, continuous surface ideal for all forms ofdecoration. Care must be taken to apply paint orother finishes strictly in accordance with themanufacturer’s instructions.

Plasterboard

Layers

Plasterboard

Mass

Suspension

System 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 approximateonly and based on a Rondo steel suspensionsystem with Top Cross Rails @ 1200mm centres,Furring Channels @ 600mm centres and anaverage drop.

4



General Construction DetailsMovement joints should be put at buildingconstruction joint locations. Control joints shouldbe spaced at not more than 12 metre max. centresin either direction (15 metre centres where there isperimeter relief). Refer to "Joints" for details.

Specifiers should be aware of the likelihood offrame movement due to structural, thermal andseasoning effects on direct fixed plasterboardceilings. Where necessary specify a furred systemto minimise the risk of ceiling damage due tothese effects.

Caution:Boral Plasterboard ceiling systems are notdesigned to support the weight of maintenancepersonnel, additional plant or storage of goods.

Materials• 16mm or 13mm Boral Firestop Plasterboard

recessed edge.• Boral Plasterboard Jointing Compound (as

preferred from the Boral PlasterboardJointing Compound range).

• Boral Plasterboard Cornice 55mm, 75mm &90mm if required, applied using BoralPlasterboard Cornice Adhesive or CorniceAdhesive 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 BoralPlasterboard Sales Offices, or the containerlabelling, when handling relevant products.

All materials used in the construction of BoralPlasterboard ceiling systems must be carefullystored and protected on the construction site.Plasterboard is to be stacked flat and protectedfrom moisture. Boral Firestop Plasterboard mustnot be used where it will be exposed to excessivemoisture. In addition, damaged plasterboardsheets and accessory materials must not be used.

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

• Type S is a double start, needle point, buglehead gypsum screw for fixing to steelgauges of up to 0.80mm BMT.

• Type D is a double start, drill point, buglehead gypsum screw for fixing to steelgauges from 0.80mm to 2.00mm BMT.

• Type W is a single start, needle point, buglehead gypsum screw for fixing to hardwoodand softwood framing. In some instancesdouble start screws are permissible (refer toBoral Plasterboard for details).

• Type L is a single start, needle point, buglehead gypsum screw for fixing plasterboardto plasterboard.

Note that correct screw length is critical whenfastening to resilient furring channel to avoidacoustic bridging.

NailsAlthough nail lengths specified are minimum, careshould be taken when using longer nails to avoidbending in hardwoods or popping of plasterboardwith unseasoned timber.

Fastener SelectionThe following tables show the correct selection ofscrews and nails for the construction of BoralPlasterboard ceiling systems.

Number of Layers of Plasterboardx Thickness

1 x 13mm1 x 16mm1 x 16mm

Min. 13mmMin. 16mm

Min. 2 x 16mm

Type L Screws forFixing Plasterboard

A to B

10 - 8 x 32mm10 - 8 x 38mm6 - 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 ofLayers of

Plasterboardx Thickness

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

6 - 9 x 32mm6 - 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 75mm8 - 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 gaugesof less than 0.8mm BMT, use 30mm minimumlength screws.

7 - 16 x 50mmType S only3 x 13mm 8 - 8 x 60mm

5



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.

SmoothShank GoldPassivated

Annular RingShank and

Uninail

Number ofLayers of

Plasterboardx Thickness

1 x 13mm

1 x 16mm

40mm¹30mm²50mm¹50mm²65mm¹,²65mm¹,²

1 = Softwood 2 = Hardwood

30mm¹30mm²

Galvanised2.8mm

Diameter

1 x 13mm+ 1 x 16mm

40mm¹30mm²50mm¹40mm²50mm¹,²65mm¹,²

75mm x 3.75¹,²75mm 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

6



Plasterboard Application for Systemsusing 1, 2 or 3 Layers of Plasterboard.

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

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

3. The first layer (uppermost) of Firestopplasterboard sheets are fastened at 200mmmax. centres in the field of board and at150mm max. centres on ends and edges(staggered).

4. Additional layers of Firestop plasterboardsheets are fixed in the same manner as thefirst layer but with joints staggered betweenlayers min. 200mm.

5. Additional layer butt joints not formed on aframing member are screw laminated to theprevious layer at 200mm max. centres.

6. Tape and finish face sheet with preferredBoral Plasterboard jointing system.

Plasterboard Application forFRL 120/120/120 Systems Using 4 Layersof Plasterboard.

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

2. Fix Rondo P.N. 129 furring channels at600mm centres to Rondo P.N. 237 clips @1200mm centres fixed through upper twolayers and into the primary framing withmin.12 x 60mm roofing screws.

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

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

5. The second of the two bottom layers ofFirestop plasterboard sheets is fixed in thesame manner as the first layer but withjoints staggered between layers min.200mm.

6. Screw laminate bottom layer butt joints notformed on framing members at 200mmcentres to previous layer with 10x38 Type Lscrews.

7. Tape and finish face sheet with preferredBoral Plasterboard jointing system.

InstallationCeiling systems may be constructed by fixinglayers of 16mm and/or 13mm Boral FirestopPlasterboard in either, a Suspended, Direct Fixedor Direct Clipped (furred) system as per detailsunder "Standard Construction".

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

All permitted and approved fire-rated penetrationsor features must be installed and caulked inaccordance with the details provided in thismanual.

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

• Attach suspension rods to suspension rodbrackets that are anchored to structuralframing or concrete soffit, at 1200mmmaximum centres in each direction.Note: Each suspension rod bracket fasteningmust be capable of supporting a weight of143kg plus the self load of the system andpressure loads.

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

• Position furring channels at 600mmmaximum centres and attach to top crossrails with a locking clip at each intersection.

• Join lengths of furring channel with furringchannel joiners, ensuring the joins arestaggered.

• Extra suspension components must beprovided to support light fittings, bulkheadsand other fixtures. Spans and spacings maybe reduced if required.

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

Direct Fixed SystemsWhere fixing direct to timber or steel framingwithout furring channel, framework should notexceed 600mm spacing. Spans and spacings maybe reduced if required.

7



Architectural SpecificationBoral Plasterboard Ceilings shown in the relevantdrawings shall consist of materials supplied byBoral Plasterboard, fixed and finished inaccordance with the instructions contained inBoral Plasterboard Technical Manuals and inTecSYS - a comprehensive technical catalogue onCD-ROM (see back page for details).

As drawings are updated from time to time, usersare advised to check drawing currency beforeadopting the procedures and details notedthereon.

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

Failure to provide back-blocking installed as perAS/NZS 2589.1:1997 may result in liability for anyassociated costs relating to maintenance and/orrectification caused by jointing defects.

Multiple LayersButt or end joints on the first layer (uppermostsheet) not formed on framing members must bedry back-blocked as follows:

• Cut back-blocking pieces from 16mm BoralFirestop Plasterboard to sizes no less than200mm wide and in lengths that will fitbetween the framing members.

• Fix Boral Plasterboard ceiling sheettransverse to framing members, placing theback-blocks centrally along the full length ofthe 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 laminateto 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 manualshow a Suspended Ceiling System, a DirectFixed or Furred System may also be used.

Note:

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

• Cut back-blocking pieces from BoralPlasterboard sheet to sizes no less than200mm wide and in lengths that will fitloosely between the framing members.

• Prepare Boral Plasterboard Cornice Adhesivein a clean container with sufficient water tomake a stiff paste of smooth consistency.

• Apply adhesive over the full face of the back-blocking pieces using a notched spreader toform beads of 6mm x 6mm at approximately20mm 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 andscrew laminate to back blocks as previously.

8


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 variouscombinations of 1, 2 and 3 layers of Boral Firestop Plasterboard. Where illustrations throughout thismanual give the option of using either 1, 2 or 3 layers of plasterboard, refer to the table below to select thesystem 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 fourlayers of 16mm Boral Firestop Plasterboard - 2 bottom layers and 2 top layers separated by a secondaryfurring channel framing (System CS6). For details, refer to Boral Plasterboard TecASSIST or TecSYS - acomprehensive technical catalogue on CD-ROM (see back cover).

Caution

Boral 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 to

Incipient 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 orglass 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

9


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 OpinionFCO-0568

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

Description and Physical Data

System provides a variety of applicationconfigurations using 1 layer of 16mm BoralFirestop Plasterboard fixed as a Suspended,Direct Fixed or Furred System.

1 layer of 16mm Boral Firestop Plasterboardfixed to a supporting framework of timber orsteel at 600mm max. centres. - Firestop is fixedacross supporting members - Longitudinaljoints (along recessed edges) and Butt or EndJoints not formed on framing members shouldbe back-blocked - Back blocks to be screwlaminated - Fixing to framework to be as afollows: Fixed directly to timber or steel beamsor purlins at 600mm max. centres or - Fixed tofurring channel system at 600mm max. centresthat has been - (a) clipped or direct fixed to asteel or timber floor or ceiling frame at1200mm max.centres or - (b) clipped to topcross rails at 1200mm max. centres supportedby suspension rod system hung from aconcrete soffit, steel or timber floor or ceilingframe.

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

OR OR

OR

OR

Furred Channel Systems

Direct Fixed Systems

Suspended Systems

10


(Test Ref.)

SystemNo.


CS15 1 Hour60/60/60


incipient spread

of fire

CSIRO OpinionFC0-0675


System provides a variety of applicationconfigurations using 2 layers of 16mm or 3layers of 13mm Boral Firestop Plasterboardfixed as a Suspended, Direct Fixed or FurredSystem.

2 layers of 16mm or 3 layers of 13mm BoralFirestop Plasterboard fixed to a supportingframework of timber or steel at 600mm max.centres. - Firestop is fixed across supportingmembers with all end joints on frame, or dryback-blocked or screw fastened to previouslayer - Stagger all joints min. 200mm. Fixing toframework to be as a follows: Fixed directly totimber or steel beams or purlins at 600mmmax. centres - or - Fixed to furring channelsystem at 600mm max. centres that has been -(a) clipped or direct fixed to a steel or timberfloor or ceiling frame at 1200mm max. centresor - (b) clipped to top cross rails at 1200mmmax. centres supported by suspension rodsystem hung from a concrete soffit, steel ortimber floor or ceiling frame.

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

OR OR

OR

OR

System Selector FRL 60/60/60




Suspended Systems

11


CS14


incipient spread

of fire

CSIRO OpinionFCO - 0794 &FCO - 0668

Upgrade of Existing Fibrous Plaster Ceiling1 Hour60/60/60

2 layers of 16mm Boral Firestop screwattached to Rondo steel furring channelsspaced at 600mm centres. Furring Channelsclipped to Rondo anchor clips fixed throughexisting fibrous plaster ceiling to existingframing with 50mm Type W screws for softwood framing or 40mm Type S or Type D forsteel framing. Anchor clips spaced at 1200mmmax. centres staggered - joints staggered -first layer butt joints may fall on one furringchannel across the full width of the ceiling -face layer butt joints located on additionalshort lengths of furring channel andstaggered- face joints finished.

CS12


incipient spread

of fire


Acoustic Suspended Ceiling under Fire-ratedCeiling System

(Test Ref.)

SystemNo.


1 Hour60/60/60

System is designed to cater for fixing asuspended acoustic ceiling from a fire-ratedceiling above. For furred system - fire-ratedceiling is fixed to purlins supporting a metaldeck roof at 1200mm centres using extendedRondo clips P.N.394 fastened direct to web ofpurlin. For direct fixed system - fire-ratedceiling is fixed directly to purlins.

Ceiling (furred) : 2 layers of 16mm BoralFirestop Plasterboard fixed to Rondo furringchannel at 600mm max. centres. - Firestop isfixed across supporting member with all endjoints fixed on frame, or dry back-blocked orscrew fastened to previous layer. Acousticceiling suspended from clips screwed tofurring channel.

Refer to Boral Plasterboard TecASSIST foradditional 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 forhuman access or construction andmaintenance loadings.

OR



12



(Test Ref.)

SystemNo.


CS20 1 Hour60/60/60


incipient spread

of fire



System provides a variety of applicationconfigurations using 2 layers of 13mm BoralFirestop Plasterboard fixed as a Suspended,Direct Fixed or Furred System.

2 layers of 13mm Boral Firestop Plasterboardfixed to a supporting framework of timber orsteel at 600mm max. centres. - Firestop is fixedacross supporting members with all end jointson frame, or dry back-blocked or screwfastened to previous layer - Stagger all jointsmin. 200mm. Fixing to framework to be as afollows: Fixed directly to timber or steel beamsor purlins at 600mm max. centres - or - Fixed tofurring channel system at 600mm max. centresthat has been - (a) clipped or direct fixed to asteel or timber floor or ceiling frame at1200mm max. centres or - (b) clipped to topcross rails at 1200mm max. centres supportedby suspension rod system hung from aconcrete soffit, steel or timber floor or ceilingframe.


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


OR OR

OR

OR



Suspended Systems

13



(Test Ref.)

SystemNo.


CS21 1 Hour60/60/60


incipient spread

of fire



System provides a variety of applicationconfigurations using 1 layer of 13mm and 1layer of 16mm Boral Firestop Plasterboardfixed as a Suspended, Direct Fixed or FurredSystem.

First layer of 13mm and second layer of 16mmBoral Firestop Plasterboard fixed to asupporting framework of timber or steel at600mm max. centres. - Firestop is fixed acrosssupporting members with all end joints onframe, or dry back-blocked or screw fastenedto previous layer - Stagger all joints min.200mm. Fixing to framework to be as a follows:Fixed directly to timber or steel beams orpurlins at 600mm max. centres - or - Fixed tofurring channel system at 600mm max. centresthat has been - (a) clipped or direct fixed to asteel or timber floor or ceiling frame at1200mm max. centres or - (b) clipped to topcross rails at 1200mm max. centres supportedby suspension rod system hung from aconcrete soffit, steel or timber floor or ceilingframe.




OR OR

OR

OR



Suspended Systems

14



(Test Ref.)

SystemNo.

Fire-RatingFRL (mins) Description and Physical Data

CS10 1.5 Hour90/90/90

90 mins resistance

to incipient spread

of fire



3 layers of 16mm Boral Firestop Plasterboardfixed to a supporting framework of timber orsteel at 600mm max. centres. Firestop is acrosssupporting members with all end joints onframe, or dry back-blocked or screw fastened toprevious layer. Stagger all joints min. 200mm.Fixing to framework to be as a follows: Fixeddirectly to timber or steel beams or purlins at600mm max. centres - or - Fixed at 600mmmax. centres to furring channel system thathas been; (a) clipped or direct fixed to a steelor timber floor or ceiling frame at 1200mmmax. centres - or; (b) clipped to top cross railsat 1200mm max. centres supported bysuspension rod system hung from a concretesoffit, steel or timber floor or ceiling frame.

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


OR OR

OR


OR



Suspended Systems

15



Description and Physical Data(Test Ref.)

SystemNo.


CS8



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

Primary System (furred): Top 2 layers of 16mmBoral Firestop Plasterboard fixed to asupporting framework of timber or steel at600mm maximum centres. Firestop is fixedacross supporting members with all end jointson frame, or dry back-blocked or screwfastened to previous layer. Stagger all jointsmin. 200mm.

Secondary System (furred): Bottom layer of16mm Boral Firestop Plasterboard fixed toRondo furring channel at 600mm maximumcentres. Firestop is fixed across supportingmember with all end joints fixed on frame ordry back-blocked.

Ceiling System may be fixed to a pitch in therange of 0o - 70o from the horizontal or to aminimum radius of 6000mm - brace asrequired. Flooring over; Concrete Slab orminimum 12mm plywood, timber or particleboard fixed direct to frame. Roofing over;Concrete Slab, Tile, Aluminium or Steelprofiled section fixed to battens or frame.Acoustic ceiling suspended from clips screwedto furring channel.

Refer to Boral Plasterboard Sales Offices foradditional details.

1.5 Hour90/90/90

90 mins resistance

to incipient spread

of fire

OR

Total mass of suspended acousticceiling under not to exceed12 kg/m2 for direct fixed system or4.95kg/m2 for furred system.

Ceilings are not designed forhuman access or for constructionand/or maintenance loadings.

System provides 90 mins.protection to loaded steel ortimber beams above ceiling.

16


(Test Ref.)

SystemNo.


CS6 2 Hour120/120/120


incipient spread

of fire



System provides a variety of applicationconfigurations using 4 layers (2 bottom & 2top) of 16mm Boral Firestop Plasterboard fixedas a Suspended, Direct Fixed or FurredSystem.

Primary System: Top 2 layers of 16mm BoralFirestop Plasterboard fixed to a supportingframework of timber or steel at 600mm max.centres. Firestop is fixed across supportingmembers with all end joints on frame, or dryback-blocked or screw fastened to previouslayer. Stagger all joints min. 200mm.Fixing to framework to be as a follows: Fixeddirectly to timber or steel beams or purlins at600mm max.centres - or - Fixed at 600mmmax. centres to furring channel system thathas been; (a) clipped or direct fixed to a steelor timber floor or ceiling frame at 1200mmmax. centres - or; (b) clipped to top cross railsat 1200mm max. centres supported bysuspension rod system hung from a concretesoffit, steel or timber floor or ceiling frame.

Secondary System: Bottom 2 layers of 16mmBoral Firestop Plasterboard fixed to Rondofurring channel or resilient channel at 600mmmax. centres. Firestop is fixed acrosssupporting member with all end joints fixed onframe dry back-blocked or screw laminated toprevious layer. Stagger all joints min. 200mm.

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

System provides 120 mins. protection toloaded steel or timber beams above ceiling.

Refer to Boral Plasterboard TecASSIST forfurther details.



Suspended Systems

OR OR

OR

OR



17



(Test Ref.)

SystemNo.

Fire-RatingFRL (mins) Description and Physical Data

CS22 2 Hour120/120/120

90 mins resistance

to incipient spread

of fire



3 layers of 16mm Boral Firestop Plasterboardfixed to a supporting framework of timber orsteel at 600mm max. centres. Firestop is acrosssupporting members with all end joints onframe, or dry back-blocked or screw fastened toprevious layer. Stagger all joints min. 200mm.Fixing to framework to be as a follows: Fixeddirectly to timber or steel beams or purlins at600mm max. centres - or - Fixed at 600mmmax. centres to furring channel system thathas been; (a) clipped or direct fixed to a steelor timber floor or ceiling frame at 1200mmmax. centres - or; (b) clipped to top cross railsat 1200mm max. centres supported bysuspension rod system hung from a concretesoffit, steel or timber floor or ceiling frame.

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


OR OR

OR


OR



Suspended Systems

18


CS7


incipient spread

of fire



(Test Ref.)

SystemNo.


2 Hour120/120/120

Total mass of suspended acousticceiling under not to exceed4.95kg/m2

Ceilings are not designed forhuman access or for constructionand/or maintenance loadings.

System is designed for fixing a suspendedacoustic ceiling from a fire-rated ceiling above.Fire-rated ceiling is a direct fix ceiling systemto timber or steel beams or purlins using 4layers (2 bottom & 2 Top) of 16mm BoralFirestop Plasterboard.

Primary System: Top 2 layers of 16mm BoralFirestop Plasterboard fixed to a supportingframework of timber or steel at 600mm max.centres. Firestop is fixed across supportingmembers with all end joints on frame, or dryback-blocked or screw fastened to previouslayer. Stagger all joints min. 200mm.

Secondary System: Bottom 2 layers of 16mmBoral Firestop Plasterboard fixed to Rondofurring channel at 600mm max. centres.Firestop is fixed across supporting memberwith 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 therange of 0o - 70o from the horizontal or to amin. radius of 6000mm - brace as required.Flooring over; Concrete Slab or min. 12mmplywood, timber or particle board fixed directto frame. Roofing over; Concrete Slab, Tile,Aluminium or Steel profiled section fixed tobattens or frame. Acoustic ceiling suspendedfrom clips screwed to furring channel.

System provides 120 mins. protection toloaded steel or timber beams above fire-ratedceiling.

Refer to Boral Plasterboard TecASSIST foradditional details.



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 Acousticratings. 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



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 Acousticratings. 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.

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 Acousticratings. Refer to the "System Selector Table" on Page 8 for selection of the required system. Refer toRondo catalogue - "Suspended Grid Design".

22



Acoustic Suspended CeilingsNote: In each of the following acoustic suspended systems, suspension rod bracket fastening must becapable 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

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


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

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


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


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


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

29


Light Recess

Framing Member

Rondo P.N. 302Light 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


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

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


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




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


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


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 to

Furring Channel

View perpendicular

to 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


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

37


Perimeter Details

6-10mm

6-10mm

6-10mm

See Alternative

Details 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 Cornice

Detail APlasterboard Cornice

Detail B


22mm Promaseal IBSby Promat Fyreguard

38


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


39


IntroductionBoral Plasterboard Non Fire-Rated CeilingSystems provide a variety of applicationconfigurations using 1 layer of 10mm or 13mmBoral Plasterboard Standard Core or 10mm BoralUnispan fixed as a Suspended, Direct Fixed orFurred System.Note:

• These ceiling construction details are notsuitable for external ceilings.

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

Early Fire Hazard PropertiesBoral Plasterboard Standard Core, tested for earlyfire hazard properties in accordance withAustralian Standard 1530.3 - 1982, recorded thefollowing 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 approximately6.5kg/m2;

• One layer of 13mm Boral Standard CorePlasterboard has a mass of approximately8.5kg/m2;

• One layer of 10mm Boral UnispanPlasterboard has a mass of approximately6.7kg/m2;

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

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

Systems MassThe following table shows mass calculationsbased on the above approximations:

DecorationThe ceiling system is flush jointed to provide asmooth, continuous surface ideal for all forms ofdecoration. Care must be taken to apply paint orother finishes strictly in accordance with theManufacturer’s instructions.

General Construction DetailsMovement joints should be put at buildingconstruction joint locations. Control joints shouldbe spaced at not more than 12 metre max. centresin either direction or 15 metre centres where thereis perimeter relief.

Where necessary specify a furred system tominimise the risk of ceiling damage due to framemovement caused by structural, thermal andseasoning effects.Caution:Boral Plasterboard ceiling systems are notdesigned to support the weight of maintenancepersonnel, 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 PlasterboardJointing Compound range).

• Boral Plasterboard Cornice 55mm, 75mm &90mm if required, applied using BoralPlasterboard Cornice Adhesive or CorniceAdhesive 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 BoralPlasterboard Sales Offices) or the containerlabelling, when handling relevant products.

All materials must be carefully stored andprotected on the construction site. Damagedplasterboard sheets and accessory materials mustnot be used. Plasterboard is to be stacked flat andprotected from moisture and must not be usedwhere 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


Plasterboard

Layers

Plasterboard

Mass

Suspension

System 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 approximateonly and based on a Rondo steel suspensionsystem with Top Cross Rails @ 1200mm centres,Furring Channels @ 600mm max. centres(450mm max. centres for 10mm Standard CorePlasterboard) and an average drop.

40



InstallationFurring channel and framing supports to be takento 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 structuralframing or concrete soffit, at typically1200mm centres in each direction.Note: Each suspension rod bracket fasteningmust be capable of supporting a weight of143kg plus the self load of the system andpressure loads.

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

• Position furring channels at 600mmmaximum centres (see note) and attach totop cross rails with a locking clip at eachintersection.

• Join lengths of furring channel with furringchannel joiners, ensuring the joins arestaggered.

• Extra suspension components must beprovided to support light fittings, bulkheadsand other fixtures. Spans and spacings maybe reduced if required.

Direct Clipped (Furred) SystemsPosition furring channels at 600mm maximumcentres (see note) and attach channels tostructural framing with direct fixing clips attypically 1200mm centres, or to concrete soffitwith anchor clips fastened to soffit at typically1200mm centres. Ensure that furring channels arefixed to a true and level plane. Longer spans maybe used - refer to Manufacturer's details.

Direct Fixed SystemsWhere fixing direct to timber or steel framingwithout furring channel, framework should notexceed 600mm spacing (see note). Spans andspacings 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 isthe preferred method for general application.

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

• Butt or end joints not formed on framingmembers should be back-blocked asdescribed under "Back-blocking".

• Tape and finish with preferred BoralPlasterboard jointing system.

Adhesive/ Fastener Fixing• Apply Boral Plasterboard Stud Adhesive to

framing members in daubs measuring25mm diameter by 15mm high.

• Space daubs of adhesive at 230mmmaximum centres.

• Keep daubs approximately 200mm awayfrom the edges of the sheets and the nail orscrew fixing points.

• Under slow-drying conditions, keep BoralPlasterboard sheets firm against theadhesive daubs for at least 48 hours. Usetemporary blocks fastened throughplasterboard to framing members.

• Be sure to fix Boral Plasterboard withinthirty minutes of applying adhesive. This willavoid skin forming on the adhesive.

For the number of nails or screws required, andtheir fixing points, refer to the following tablesand illustrations.

Plasterboard

Width

900mm1200mm1350mm

FAF/FAFFAAF/FAAFFAAF/FAAF

FAFAFFAFAFAFFAFAFAF

Conventional

Spacing1/3 Spacing

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

Plasterboard

Width

Single

Nails

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 for10mm Standard Core Plasterboard.

Smooth ShankGold

Passivated

Annular RingShank and

Uninail

Layers ofPlasterboardx Thickness

1 x 10mm

1 x 13mm

40mm¹30mm²40mm¹30mm²

1 = Softwood 2 = Hardwood


Galvanised2.8mm

Diameter


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 ofPlasterboardx 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 gaugesof less than 0.8mm BMT, use 30mm minimumlength screws.

41



Fixing With Nails OnlyThis method normally applies where adhesivecannot be used - e.g., over existing linings or overa water vapour barrier.

• Keep Boral Plasterboard sheets in firmcontact with framing member while nails arebeing driven.

• Drive nail heads slightly below the surface ofthe sheet without puncturing the facelinerboard.

• Along the perimeter of sheets, space nails atbetween 10mm minimum and 16mmmaximum away from the edges and ends ofthe sheet.

• Skew-nailing is not permitted.

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

Fixing With Screws OnlySpace screws at 300mm maximum centres in fieldof board and 200mm maximum centres on endjoints (staggered). Space screws at 10mm - 16mmfrom the edges and ends.

When screw-fixing single layers of BoralPlasterboard sheets:

• Hold plasterboard sheets firmly in placeagainst the framing members while drivingin the screws.

• Adjust screw gun correctly so as to drive thescrew heads below the surface of the sheetwithout puncturing the face linerboard.

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

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

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

• Position screws on adjacent edges oppositeeach 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

42


Back-blocking Ceilings Under Floors andLow-Pitched RoofsThis can be carried out from the floor below, onestep 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 betweenframing members along the full length of thesheet already fixed.

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

• Continue as above across the entire ceilingarea.

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

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

• Fix ceiling sheets with ends butted neatlytogether. The butt joint should fall within50mm of the mid-span point betweenframing members.

• Use battens and packers to support anddeflect 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 requirementwhere specified in the Australian StandardAS/NZS 2589.1:1997.

Failure to provide back-blocking installed as perAS/NZS 2589.1:1997 may result in liability for anyassociated costs relating to maintenance and/orrectification caused by jointing defects.

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

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

• Cut back-blocking pieces from BoralPlasterboard sheet to sizes no less than200mm wide and in lengths that will fitloosely between the framing members.

• Prepare Boral Plasterboard Cornice Adhesivein a clean container with sufficient water tomake a stiff paste of smooth consistency.

• Apply adhesive over the full face of the back-blocking pieces using a notched spreader toform beads of 6mm x 6mm at approximately20mm centres and at right angles to thejoint.


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

Back-blocks in ceilings may be cemented intoposition from within the roof cavity using a morefluid adhesive mix and pouring it onto the top ofthe ceiling join before seating the back-blocksonto the adhesive.

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 compoundscombined with ceiling temperatures maycause premature dry-out and reduced bond.

• Ensure back-blocking is completely dry priorto 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 relevantdrawings shall consist of materials supplied byBoral Plasterboard, fixed and finished inaccordance with the instructions contained inBoral Plasterboard Technical Manuals and inTecSYS - a comprehensive technical catalogue onCD-ROM (see back cover for details).

As drawings are updated from time to time, usersare advised to check drawing currency beforeadopting the procedures and details notedthereon.

Rafter or joistBack-block

Temporary battens

PlasterboardTemporary nailing

Cornice adhesive

Packing strip


44


OR OR

(Test Ref.)

SystemNo.


CS18 Non Fire

Rated

Ceiling





Suspended Systems

OR

OR

System provides a variety of applicationconfigurations using 1 layer of 10mm or 13mmBoral Plasterboard Standard Core or 10mmBoral Unispan fixed as a Suspended, DirectFixed or Furred System.

1 layer of 10mm or 13mm Boral PlasterboardStandard Core or 10mm Boral Unispan fixed toa supporting framework of timber / steel at600mm (450mm for 10mm Boral PlasterboardStandard Core) max. centres. - Plasterboard isfixed across supporting members -Longitudinal joints (along recessed edges) andButt or End Joints not formed on framingmembers should be back blocked - Back blocksto be laminated with daubs of CorniceAdhesive - Fixing to framework to be as afollows: Fixed directly to timber / steel beamsor purlins at 600mm (450mm for 10mm BoralPlasterboard Standard Core) max. centres - or -Fixed to furring channel system at 600mmmax. centres that has been -( a) clipped ordirect fixed to a steel or timber floor / ceilingframe at 1200mm max. centres - or - (b)clipped to top cross rails at 1200mm max.centres supported by suspension rod systemhung from a conc. soffit, steel or timber floor /ceiling frame.

Flooring over - Concrete Slab or min. 12mmplywood or particle board fixed direct to frame.Roofing over -Concrete Slab, Tile, Aluminiumor Steel profiled section fixed to battens orframe.

System Selector

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

46



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).

47



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.

48






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

49


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

2. Use a suitable power tool with an appropriatehex driver and tighten the fastener to a pointwhere there is no compression of the rubberelement. Check the pull-out capacity of fastenerto ensure correct size is selected.

3. Clip furring channel into the Furring ChannelClip.

CeilingSupport Structure

FurringChannel Clip

Rubber Elementshowing colourcoding dot

Fixing Screw (with25mm dia. Steelwasher wherefire rating required)

RondoFurring Channel

IntroductionThe QuietZone™ systems have been designed toreduce unwanted noise from specific areas of ahome. There are three QuietZone™ ceilingsystems designed to suit varying budgets anddesign considerations - these three systems areidentified as "Quiet", "Quieter" and "Quietest".

Building a QuietZone™ ceiling requires a littlemore care and attention to detail than standardsystems. Each component in a QuietZone™System must be securely fixed, necessary servicesstrategically placed and all plasterboard perimeteredges and openings adequately sealed.

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

Boral Acoustic Ceiling MountThe Boral Acoustic Ceiling Mount is used in theQuietZone™ systems and provides a cost effectivesolution to impact sound insulation for ceilingsdirect fixed or suspended to either concretesoffits, timber floor joists, roof purlins and the like.

The Acoustic Ceiling Mount significantly reducestransmission of impact sound from manycommon sources including:

• footfalls;• rain; and• equipment

Other typical applications for the Boral AcousticCeiling Mount are in multi-residential apartmentconstruction, cinemas, and areas below a plantroom.

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 squaremetre.

InstallationThe Boral Acoustic Ceiling Mount is designed foruse in Rondo's Key-Lock Ceiling SuspensionSystem. Refer to the Rondo catalogue for thespanning and spacing options for furring channelsand 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 screwinto timber;

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

- “Tapcon” screw into concrete.

ProcedureAssemble the mount as shown in the followingillustration.

Introduction

50


Suspended Application

Components

• Furring Channel Clip• Interchange Clip• Rubber Element

ProcedureAssemble the mount as shown in the followingillustration.

RondoTop Cross Rail

FurringChannel Clip

Rubber Elementshowing colourcoding dot

RondoFurring Channel

Interchange Clip

1. Clip the Interchange Clip into the Top CrossRail.

2. Clip furring channel into the Furring ChannelClip.

PerformanceThe Boral Acoustic Ceiling Mount has beenacoustically tested for airborne and impact soundinsulation in both the direct fix and the suspendedapplication. Acoustic ratings for the assemblydetails illustrated below are shown in thefollowing table.

Load RatingsFor both applications, the rubber element comesin a variety of load bearing capacities and iscolour coded accordingly. The appropriateelement must be used to support the weight ofplasterboard being used in the ceiling.

As each layer of plasterboard is fixed to thefurring channel, the rubber element will deflectunder the load. A maximum deflection of 5 mmwill result when the maximum load, as indicatedin the following table, is reached. Allowanceshould be made for deflection when setting outceiling heights.

Acoustic Ceiling Mount

ColourCoding

Max. Loadin kg

StaticDeflection

Blue dotWhite dot

1725

5mm5mm

Direct to joist

Plasterboard Fixing Floor Covering Rw IIC

Bare

Bare

Bare

Carpet andunderlay

Carpet andunderlay

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 Details

FRL 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.

51


Acoustic Selector

QZ4

QZ5

*

System Number andAssembly Details

FloorCovering

RatingWith Insulation

Rw IIC

Insulation

44

62

44

(AO100)

(AO100)

(AO100)

50

50

50

(AO100)

(AO100)

(AO100)

(Test Ref.)

Floor/CeilingDepthmm

A bare floor (A) or with a covering of carpet andunderlay (B) or with ceramic tiles on cement

sheet (C) - on 190mm x 35mm timber floor joists @ 450mm or600mm centres. Furring channel fixed with "blue dot" AcousticCeiling Mounts(1) to underside of every third joist spaced at450mm or every second joist spaced at 600mm. 1 layer of10mm Boral Plasterboard SoundStop™screw fixed to furringchannel. Insulation in floor/ceiling cavity. Joints finished.Perimeters acoustically sealed.

A

B

C

287

A

B

C

297

QZ6 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)


sheet (C) - on 190mm x 35mm timber floor joists @ 450mm or600mm centres. Furring channel fixed with "blue dot" AcousticCeiling Mounts(1) to underside of every third joist spaced at450mm or every second joist spaced at 600mm. 2 layers of10mm Boral Plasterboard SoundStop™- first layer screwfixed to furring channel, second layer adhesive/screw fixed tofirst layer. Insulation in floor/ceiling cavity. Joints finished.Perimeters acoustically sealed.


sheet (C) - on 190mm x 35mm timber floor joists @ 450mm or600mm centres. 2 layers of 10mm Boral PlasterboardSoundStop™ to underside of floor between joists and held inplace with cleats nailed to side of joists. Furring channel fixedwith "blue dot" Acoustic Ceiling Mounts(1) to underside ofevery third joist spaced at 450mm or every second joistspaced at 600mm. 2 layers of 10mm Boral PlasterboardSoundStop™- first layer screw fixed to furring channel, secondlayer 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 CeilingSystem

QuieterCeilingSystem

QuietestCeilingSystem

75 mm NoiseControl Batts(glass wool@ nominal14 kg /m3)



52


Quiet CeilingsThe "Quiet" ceiling system consists of one sheet of 10mm Boral Plasterboard SoundStop fixed to undersideof 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 sheetwidth, 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

53


Quieter CeilingsThe "Quieter" ceiling system consists of two sheets of 10mm Boral Plasterboard SoundStop fixed tounderside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral Plasterboard AcousticCeiling 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 eachFurring 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



Quietest CeilingsThe "Quietest" ceiling system consists of two sheets of 10mm Boral Plasterboard SoundStop fixedto underside of floor/ceiling joists with Furring Channel (Rondo P.N.129) and Boral PlasterboardAcoustic Ceiling Mount. Two additional layers of 10mm Boral Plasterboard SoundStop are fixed tounderside 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 ofsheets and screw points. Screw fasten plasterboard at sheet edges (10-16mm from edge) andalong 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

55


Boral Plasterboard Website: http://www.plasterboard.boral.com.au

Western Australia

12 Hoskins Road Landsdale 6065Telephone (08) 9400 2666Fax (08) 9302 1133

ACT

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

Tasmania

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

Northern Territory

Cnr Coonawarra Road & MataramStreetWinnellie 0820Telephone (08) 8984 4484Fax (08) 8984 3778

Queensland

733 Nudgee Road Northgate 4013Telephone (07) 3215 2244

Fax (07) 3215 2299

New South Wales

3 Thackeray Street Camellia 2142Telephone (02) 9638 0571

Fax (02) 9638 5557

South Australia

119-121 Bedford Street Gillman 5013Telephone (08) 8240 8888

Fax (08) 8341 1004

Victoria

676 Lorimer Street Port Melbourne 3207Telephone (03) 9214 2138

Fax (03) 9646 1912

Export Department

676 Lorimer StreetPort Melbourne 3207

Telephone (03) 9214 2138Fax (03) 9646 1109

GuaranteeProducts manufactured and supplied by Boral AustralianGypsum Limited (BAGL) A.C.N. 004 231 976, trading asBoral Plasterboard, are guaranteed to be of consistentquality and free from any defects.

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

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

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

The information contained in this brochure is available

on TecSYS - a comprehensive technical catalogue on

CD-ROM.

Important NoteThe technical information contained within this manualwas correct at the time of printing. Building Systems anddetails are, however, subject to change. To ensure theinformation you are using is current, Boral Plasterboardrecommends you review the latest building information

© Boral Australian Gypsum limited 2001

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

Through TecASSIST Boral Plasterboard is demonstratingits commitment to providing excellent technical serviceand support to design, building and constructionprofessionals Australia wide.

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

Combining years of professional experience with thelatest design information and technology, the TecASSISTteam has the skills to help you.

Boral Plasterboard TecASSIST phone line is open toreceive calls from 9.00am to 5.00pm 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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