Concealed Ceiling System Technicalmanual

Peer Industries PIF-MSC-011 Rev 05 16/10/07 Concealed ceiling systems technical manual

Peer Industries Concealed Ceiling systems Technical Manual Index

Page General information/ Warranty and design considerations CCS01

Engineering design certification CCS02

Technical services CCS03

Certification, standards and testing CCS04-05

Peer Concealed Ceiling Steel Products CCS06-11

Concealed ceiling systems product breakdown CCS11-12

Concealed ceiling systems installation using TCR and Furring Channel CCS12

Multidirectional clip C79S CCS17

Direct fixing of furring channel/TCR system CCS18

Direct fixing of Furring Channel CCS19

Drop ceiling/ceiling bulkhead CCS20

Fire Rated ceilings CCS22

Acoustic STC rated ceilings CCS23

Typical concealed ceiling joists CCS24

Curved and raked ceilings CCS25-27

Plasterboard installation CCS27-28

Expansions and control joints CCS29

Design notes CCS30

Span table CCS01 Ceiling Joists CCS31

Span table CCS02 Top Hat 50 CCS32



Span table CCS05 16mm Ceiling Batten CCS35

Span table CCS06 -10 TCR25 and TCR38 with FC18 and FC28 CCS36-38

Span tables CCS11 Cyclonic ceiling Batten 22 mm CCS39

Clip capacity table CCS12 CCS40

Sectional properties table SP-01 FCDB 16mm Ceiling Batten CCS42

Sectional properties table SP-02 FCCB 22mm Cyclonic Ceiling Batten CCS43

Sectional properties table SP-03 FC 18mm & 28mm Furring Channel CCS44

Sectional properties table SP-04 Top Cross Rail 25mm and 38mm CCS45

Sectional properties table SP-05 Top Hat 50mm & 75mm CCS46

Notes CCS47-48

Peer Industries PIF-MSC-011 Rev 06 28/07/09 Concealed ceiling systems technical manual Page CCS 1 of 47

General Information

This Technical manual contains details of Peer Industries cold roll formed and pressed steel

products.

Peer Industries provide this manual for use by Architects, Engineers, Designers, Contractors

and Sub-Contractors to assist in product selection and use.

It has been prepared using relevant Australian Standards together with sound engineering

principles substantiated through laboratory tests.

Peer Industries cold roll formed and pressed steel products are economical, efficient and

durable structural members suitable for a wide range of building applications.

Peer Industries steel products are manufactured in accordance with the requirements of

relevant Australian and New Zealand Standards.

Warranty and Design Considerations

Peer Industries offers a warranty in keeping with Australian Standards and Project

requirements of up to fifteen years.

This Peer Technical manual is designed to provide a general guide to the design and application

of Peer concealed ceiling systems.

These systems comprise of top cross rails, furring channels, battens, and assorted suspension

clips.

Should you require information or design assistance related to systems outside those covered in

this manual, you can contact Peer design on [email protected] or contact our nearest office

by calling 1300 725 675 from anywhere in Australia.

Peer Industries Pty Ltd will not be held responsible for any claims resulting from the use of

Peer Industries products that have not been installed in accordance with the manufacturers

recommendations, design manuals, or relevant Australian Standards.

All installations must be carried out in accordance with this and other relevant technical

updates.


Certification

Engineering Design Certificate

Umesh C Khatri RPEQ - 4829 is a registered professional engineer of Queensland and is an

engineer with Peer Industries Pty Ltd being a manufacturer and supplier of the steel framing

products.

This is to certify that the span and height tables provided in this design manual for Peer

Industries cold formed steel sections are in accordance with the requirements of the following

Australian Standards:

AS1538-1988/AS4600, Cold Formed Steel Structure Code.

AS2785 -1985/2000 Suspended Ceiling Design and Installation.

AS1250/4100 Steel Structure and Building Code of Australia.

Umesh C Khatri RPEQ 4829

Customer Support Design Engineer

BE Civil, CP Eng, MIE (Aust), RBP (Vic), RPEQ, NPER-3, MFIE, MIEI

On behalf of Peer Industries Pty Ltd

Dated October 2007.


Technical Services Peer Design

Peer Industries provides a complete design service and our structural engineers will assist you

with the design phase of your project.

This design manual has been prepared with a view to providing Architects, Engineers,

Designers, Contractors and Subcontractors with:

A convenient design aid in the form of maximum heights or maximum span tables.

Design data - Section properties to enable the design of required configurations not

covered in this manual.

Installation and construction details.

The Height and Span Tables for Peer Industries steel products provides solutions for the

following broad range of design conditions.

Design loads which are uniformly distributed.

Spans for single span, double spans and continuous spans as specified.

Sizes of steel products with all dimensions.

Steel products with nominated base metal thicknesses (BMTs).

Load capacity tables with clip capacities

Contact our experts at Peer Design by email [email protected] , call for our nearest office on

1300 725 675 or visit our website at www.Peerindustries.com.au


Testing and Standards

Australian and New Zealand Standards

AS1397 2001 Steel Sheet and Strip Hot Dipped Zinc-coated or Aluminium/Zinc coated

AS/NZS 4600-1996 & AS 1538 1988 SAA Cold Formed Steel Structures.

AS/NZS 2588 - 1998 Gypsum Plasterboard.

The Application and finishing of Gypsum Plasterboard in framed dwelling construction.

AS1250 SAA Steel Structure Code.

AS3566 Screws - self-drilling - for the building and

Construction industry.

AS/NZS2785 - 2000 & AS2785 1985 Suspended Ceilings Design and Installation.

AS4055 1992 Wind Loads for Housing.

AS3623 -1993 Domestic Metal Framing.

AS1170 0, 1, & 2 2002/1989 Dead, Live and Wind Loads.

AS1170.4 1993 Earthquake Loads.

NZ4203 1992 Seismic Code.

AS1530.4 1990 Fire Resistance Tests of Elements of Building

Construction.

AS1191 1985 Test Methods for Laboratory measurement of

Airborne Sound Transmission Loss of Building

Partitions.

Tests to comply with the Building Code of Australia C1.8

Tests BRANZ Test Report STR 213:

Peer Industries Pty Ltd cold-formed steel studs are tested in conjunction with Plasterboard

conforming to AS2588 for:

(a) Resistance to Static Pressure Tests to ASTM E72-80

(b) Resistance to Impact Tests to ASTM E695-79

(c) Surface Indentation Tests to AS 2185 Appendix A2.

Steel studs were tested as specified in (a), (b) and (c) above (see Test Report STR 213).

The results were checked for compliance with the Building Code of Australia 1990 (BCA).


Testing and Standards contd

BRANZ Test Report FR1660, FR1661:

Peer Industries Pty Ltd cold roll formed steel furring channels, top cross rails and battens are

tested in conjunction with plasterboard complying with the Building Code of Australia (BCA) and

AS1530.4 for:

(a) Fire Resistance Level (FRL) of 90/60/60 FR1660

(b) Fire Resistance Level (FRL) of 120/90/120 FR1661

CSIRO Test Report STR 019:

Peer Industries cold-formed steel furring channels, top cross rails and battens are tested in

conjunction with plasterboard complying with AS2588 for airborne sound transmission loss.

Note: Airborne-sound-transmission loss = sound transmission class Rw 32 as per

AS 1276-1979 and the BCA

Material:

Peer Industries cold roll formed steel sections and pressed products are manufactured from

zinc coated steel strip conforming to AS 1397 for thickness up to and including 1.55mm BMT

(base metal thickness).

The steel strip for the various section sizes has a minimum yield stress of 300 Mpa.

Coating:

All Peer Industries cold roll formed steel sections are coated with zinc with a minimum coating

mass of 220 - 275 grams/m2 as indicated.

Performance Peer cold roll formed steel sections and pressed products will perform as specified if used in

accordance with the recommendations and details set down in this technical brochure and

related design references together with good trade practices.

Any variations from these recommendations and details will require special design and detailing.

Information in this brochure is current at the time of printing.

Specifications and recommendations are subject to change without notice.

Whilst every care is taken at the time of the preparation of this brochure, Peer accepts no

liability for any errors or ambiguities.

Contact Peer office to discuss any such concerns.

For applications outside the scope of this design manual, contact Peer design on

[email protected] or contact our nearest office by calling 1300 725 675 from anywhere in

Australia.


Concealed Ceiling Steel Products

The Peer Industries concealed ceiling system utilises furring channels, top cross rails, rod and

suspension clips to provide a flush ceiling finish.

This concealed ceiling system is versatile and provides many options to the user.

These concealed ceiling systems have been designed to meet Australian and New Zealand

Standards together with sound engineering principles substantiated through laboratory tests.

Ceiling Systems are not Trafficable unless stated, and are

designed to carry the weight of the ceiling only.

The Peer concealed ceiling system can be used in both fire rated and non fire rated situations

using appropriate plasterboard or other suitable cladding materials.

Peer Industries concealed ceiling systems can be used to build either a typical ceiling or an

acoustically rated ceiling by using appropriate plasterboard.

Acoustic ceilings with a specific STC rating can be achieved by using furring channel with

resilient mounts and appropriate plasterboard.

This suspended ceiling systems manual is designed to provide a general guide to the design and

application of Peer Suspended Ceilings.

For more information or design assistance related to systems outside those covered in this

design manual, contact Peer Design by email on [email protected] or our nearest

customer service centre by calling 1300 725 675 for further advice.


T18 - 150 track 18mm to 150mm WSL51 - 150 Lipped Stud 51 to 150mm



TH50 - 75- Top hat 50mm and 75mm FC18 - 28- Furring channel 18mm and 28mm

C38- Furring channel 18 and 28 joiner FCCB22 22mm Ceiling batten

FCDB 16mm Ceiling batten CDB38 16mm Ceiling batten joiner

FCBBB Back blocking batten TCR25/38- Top cross rail in 25mm and 38mm


Concealed Ceiling Steel Products contd

C21- 5mm suspension rod C54 5mm suspension rod joiner

C74- Suspension rod bracket Purlin C47-74 Suspension rod bracket multi purpose

C60- Adjustable suspension clip for TCR C60DF- Adjustable suspension clip Purlin

C60LDF- Adjustable suspension clip for slab C52 Spring adjustable C26-80 furring channel clip


Concealed Ceiling Steel Products contd

C24 Top cross rail direct fix clip to timber or steel C66 Top cross rail direct fix clip to timber or steel

C26-80/180 Furring channel direct fix clip CDB26-80/150 16mm Batten direct fix clip

C37-7H Furring channel anchor clip 7.5 hole C37-M6- Furring channel anchor clip M6

CFCAM Furring channel adjustable mount CFCRESAM F/C resilient adjustable mount


Concealed Ceiling Products contd

C79S Furring channel to TCR swivel clip CFSAM Furring channel screw adjustable mount

C001 Furring channel acoustic mount C001M6 Furring channel acoustic mount M6

C79SRES Furring channel to TCR acoustic mount. C001-DCS Concrete to stud wall mount acoustic

CTCR100 600 Direct fix adjustable TCR CTCRES100 600 Direct fix adjustable TCR

Acoustic


Concealed Ceiling Products contd

C39 Furring channel to top cross rails (Locking key) CDB39 16mm batten to TCR clip

CDB37 16mm batten direct fix clip CBET.FIX Furring channel direct fix adjustable

C61S TCR side mounts rod adjustable clip.

Concealed ceiling systems product breakdown Suspension Systems

C21 Suspension rod (available up to 6000mm in length)

C39 Furring channel to top cross rails (Locking key)

C74 Suspension rod bracket

C47-74 Suspension rod bracket multi purpose

C60 Adjustable suspension clip for top cross rail

C61S Side mount TCR clip

CDB39 16mm batten to TCR clip

CTROE Threaded rod one end (available up to 6000mm in length)

CTRBE Threaded rod both ends (available up to 6000mm in length)

C79S Furring channel to TCR swivel clip (multidirectional)


Concealed Ceiling Product Breakdown contd Direct Fix Clips for Furring Channels and 16mm Battens

C26-80 Furring channel direct fix clip 80mm drop

C26-180 Furring channel direct fix clip 180mm drop

C52 Spring adjustable C26-80 furring channel Clip

CDB26-80 16mm batten direct fix clip 80mm drop

CDB26-150 16mm batten direct fix clip 150mm drop

CDB37 16mm batten direct fix clip

CFCAM Furring channel adjustable mount

CBET.FIX Adjustable furring channel direct fix clip

Anchor Clips Furring Channel

C37-7H Furring channel anchor clip 7.5mm hole

C37-M6 Furring channel anchor clip M6

Direct Fix Clips for Top Cross Rails

C24 Top cross rail direct fix clip to timber or steel C66 Top cross rail direct fix clip to timber or steel CTCR Direct fix adjustable TCR

Misc Components

C54 Adjustable suspension rod joiner C38 Furring channel joiner CDB38 16mm batten joiner CTP60 Suspension rod slab tap in anchor 60mm CFCSAM Furring channel screw adjustable mount (smart clip)

Accessories for Acoustic (STC) Ceiling

C001 Furring channel resilient acoustic mount C79SRES Furring channel to TCR resilient mount.

C001-DCS Concrete to stud wall mount acoustic.

CFCRESAM Furring channel resilient adjustable mount CTCRRES Direct fix adjustable TCR acoustic

Top Hats

TH75-115 Top Hat 20x35x75x35x20 TH50-115 Top Hat 20x35x50x35x20

Ceiling Battens

FCDB 16mm domestic batten FCCB22-61 Furring channel ceiling batten 22mm Cyclonic

Furring Channel and Furring channel Track

FC18 & FC28 Furring channel 18mm and 28mm

T18 & T28 Furring channel Track 18 mm and 28mm

Ceiling Joists Studs Wall Studs Lipped - Marked as WSL

Stud sizes 51mm (WSL51), 64mm (WSL64), 76mm (WSL76), 92mm (WSL92), 150mm (WSL150)

Stud material base metal thickness (BMT) 0.50mm, 0.55mm, 0.75mm, 1.15mm and 1.55mm

Ceiling Joists End Support Tracks - Marked as T

Track sizes 51mm (T51), 64mm (T64), 76mm (T76), 92mm (T92), and 150mm (T150).


Installation

(1) Typical Suspended Concealed Ceiling Systems using TCR & FC

Refer to figs 01 to 27

Locate position of trusses or purlins or concrete etc and based on the ceiling plan, mark

the position of the suspension rod brackets (Peer product code C74 or C47-74) on it at

1200 mm centres maximum along supporting members.

Fix the C74 or C47-74 suspension rod brackets as appropriate to the side of the steel

purlins or bottom chord of the trusses with two self tapping screws in shear and to

concrete with appropriate anchors.

Cut all hanging rods (Peer product code C21) to the required length.

Assemble adjustable suspension clip for TCR (Peer product code C60) on all these

suspension rods.

Install all of these rods (Peer product code C21) into the suspension rod brackets C47-74.

Attach Top Cross Rails (Peer product code TCR25 or TCR38) to the suspension clips

(Peer product code C60).

Connect Furring Channels (Peer product code FC18 or FC28) to top cross rails TCR25 or

TCR38 with locking keys (Peer product code C39).

Check and adjust the ceiling system using a laser or other appropriate levelling device.

Install ceiling lining boards as per manufacturers specification

Plasterboard

Peer concealed ceiling framing

Fig 01 example of TCR/FC suspended ceiling


Hanger maximum distance from wall 300mm


Installation contd

C21 Peer suspension rod

C60 Peer suspension clip

Peer top cross rail

Peer furring channel

1200mm max

600mm max

1200mm max

Timber, steel or concrete support structure

End of top cross rail 10mm clear of wall for fire rating

35mm plasterers angle or Peer T18 / T28 with bottom flange aligned with bottoms of furring channel and fixed to wall at ends and 600mm centres max.

Furring channel spacing 600mm centres max Top cross rail or Suspension

rod spacing 1200mm centres max

Fig 02 example of suspension rod, anchors, FC and TCR

Fig 03- suspended ceiling using C47-74/5mm rod/C60 combination



Fix Hangers a maximum of 300 mm from the wall

1200mm max


Installation contd (1)Suspended Ceiling fixing of Furring Channels and TCR

Peer C21 suspension rod

Peer C60 suspension clip

Peer top cross rail

Peer C39 Clip


Fig 04 Close up view FC18/28, C39, TCR25/38, C60 and Rod Combination

Fig 05 Close up view of FC18/28, C39 and CTCR combination

Adjustable TCR clip CTCR (7mm adjustment each notch)

Peer top cross rail


Peer C39 clip


Installation contd

Supporting member

Peer C47-74

Peer C21-suspension rod

Appropriate Anchor Concrete slab

Concrete

Steel Framing Timber Framing

Peer C47-74 clip


C47-74 fastened to steel with 2/10x16 TEX screws (or equivalent)

Peer C47-74 fastened to timber framing/steel purlin with 2 screws in shear

Peer C39 clip


Fig 07 side view Rod/C60 suspension system with TCR25/38, C39/FC18 or 28

Fig 06 example of C47-74/Rod suspension system

Appropriate anchor

Note: 2 screw fixings in shear




Peer top cross rail TCR


Installation contd

Peer Industries C79S multidirectional clip was designed specifically to make building a non

standard (square or rectangular) ceiling easy

The C79S clip is a multidirectional clip that will allow 360

degree rotation of furring channel to top cross rail.

This clip has been specifically designed to address the problems

encountered in the construction of irregularly shaped non

square or rectangular ceilings.

The use of this clip will simplify the construction of difficult

ceilings and result in significant saving in construction time

The C79S clip has been extensively load tested and complies

with all relevant standards.

The C79S is manufactured from the highest quality corrosion

resistant zinc plated steel available and is covered by Peer

industries standard product warranty.

Fig 08 End view C79S multidirectional clip

C47-74 fastened to steel with 2/10x16 TEX screws (or equivalent)

Fig 09 C79S multidirectional (Swivel) clip with TCR/FC

Fig 10 C79S multidirectional (Swivel) clip with TCR/FC

Fig 12 Irregular shape room layout using the C79S clip Fig 11 C79S multidirectional (Swivel) clip with TCR/FC

Peer top cross rail Peer furring channel

Peer 79S Multidirectional


Installation contd

(2)Direct Fixing of Furring Channels

Refer to figs 14, 15 and 16

Locate the position of floor joists or purlins or concrete etc and based on the ceiling plan; mark the

position of the direct fix clips (Peer product code C26-80 or C26-180) on it.

Fix the direct-fix clips C26-80 or C26-180 to the steel purlins or timber joists with two screws in shear

and to concrete with appropriate anchors.

Connect the furring channels FC18 or FC28 to the direct-fix clip C26.

Check and adjust concealed ceiling system using a laser or other appropriate levelling device.

Install ceiling board as per manufacturers specification

Fig 13 Direct Fixing using C66 to Top Cross Rail 25/38mm then C39 to Furring Channel 18mm or 28mm

Steel or timber framing

Peer C66 clip

Peer top cross rail

Peer C39 clip





Installation contd

Steel or timber framing

Peer C26-80 or C26-180 clip


Timber or steel supporting member


Peer C26-80 or C26-180 clip

Fig 14 Direct fixing using C26-80 to furring channel 18 or 28mm

Fig 15 Direct fixing using C26-80 to furring channel 18 or 28mm



Installation contd

Fig 16 - Direct fixing system typical section.

(3) Drop Ceiling

Drop ceilings are required to allow for ducting, mechanical and electrical services, or as a

feature with maximum of 600 mm drop

Locate the position of the drop ceiling and mark the position of suspension rod

Brackets (Peer product code C74 or C47-74) as per detail on trusses, purlins or concrete

based on the ceiling plan.

Join top cross rails TCR25 or TCR38 to suit site situation as per detail.

Alternatively join furring channel FC18 or FC28 to suit site situation as per detail in Fig 17.

Install suspension rod brackets C74 or C47-74, suspension rods C21, top cross rails TCR25

or TCR38 and furring channels FC18 or FC28 as per typical suspended concealed ceiling

system.

Check and adjust drop ceiling and concealed ceiling system using a laser or other suitable

levelling device.

Install ceiling lining board as per manufacturers specification

Timber framing member

Peer C26-80 or C26-180 fastened to timber with 2 screws


Plasterboard

Steel framing member

Peer C26-80 or C26-180 fastened to steel framing with 2/10x16 TEX screws (or equivalent)


Installation contd

Parallel to Furring Channel Parallel to Top Cross Rail

Fig 17 - Drop Ceiling details

Roofing or floor

Peer C47-74 clip

Peer C39 clip

Peer C21 Suspension rod

Peer C60 clip

Peer top cross rail

Peer furring channel 18 or 28mm

Peer Furring channel 18 or 28mm

600mm maximum

Peer C47-74 clip

Peer C39 clip

600mm maximum

Peer C60 clip



Galvanised angle, C88 clip or screws

C39 clip

Galvanised angle, C88 clip or crews

Galvanised angle, C88 clip or screws

2 Screws

2 Screws

2 Screws

2 Screws

P90EX angle if required

P90INT angle if required

P90EX angle if required

P90INT angle if required


Installation contd

(4) Fire Rated Ceiling

Install concealed ceiling system as above with fire rating requirement.

For fire rating ceiling, use the ceiling board manufacturers specification and

recommendations on installation.

Provide a 20mm gap at the ends of both top cross rails TCR25 or TCR38 and furring

channels FC18 or FC28 for fire rating requirements as per board manufacturers

specifications and recommendations on installation.

Fig 18 - Typical concealed ceiling framing drawing

Timber, steel or concrete support structure

End of top cross rail 20mm clear of wall for fire rating

35mm plasterers angle or Peer T18 / T28 with bottom flange aligned with bottoms of furring channel and fixed to wall at ends and 600mm centres max.

Top cross rail span or suspension rod spacing 1200mm max

Furring channel spacing 600mm centres max

Top cross rail spacing 1200mm centres max

300mm from wall


Installation contd (5) Acoustic (STC) Ceiling C001, C001-SUS, CFCRESAM,CTCRRES and FC

Resilient Mounts

C001 CFCRESAM C79SRES CTCRRES

Supporting members, timber or steel to be spaced at a maximum of 1200 mm centres.

Locate the resilient mounts product no. C001 at maximum 600mm centres along supporting

members.

Fasten using appropriate fasteners dependant on the weight of the plasterboard being used.

Locate the furring channel product no. FC18 or FC28 in the resilient mounts C001

Locate short lengths of furring channel FC18 or FC28 to support butt joins in second layer of ceiling

lining or as per board suppliers specification.

Timber or steel supporting member

1200mm max centres

Peer C001 resilient mount clip

Butt joint support

600mm max centres

Fig 19 Acoustic Ceiling using C001

Furring channel


Installation contd

(6) Typical Concealed Ceiling System - Ceiling Joists

Refer to Fig 20

Electrical, mechanical and plumbing services can make suspended ceiling systems difficult to install. The height of a project can also render the installation of a suspended ceiling system uneconomical. To solve this problem Peer steel studs can be used as ceiling framing members in areas such as corridors and bathrooms.

Refer to span table CS-01 for ceiling joist sizes and spacing.

Mark position of tracks at ceiling level on wall as per working drawings.

Fix these perimeter tracks with appropriate fasteners close to stud (ceiling joist location) at 600 mm

maximum centres.

Cut the studs to required length.

Fit the studs in to the tracks.

Provide and fix bridging members at the location as per table CS-01

Install ceiling lining board as per manufacturers specification.

Peer bridging stud or track

Peer wall stud

Peer track Screws

Peer track

Fig 20 - Typical concealed ceiling system Ceiling Joists

Fixing of track to wall


Installation contd (7) Curved and Raked Ceiling

Curved or raked ceilings are to be provided wherever required by an architect or project

designer for decorative purpose to suit site/project specification.

Fig 21- Typical Section Curved Ceiling (non fire rated)

Roofing or flooring

Peer C47-74 clip


Peer top cross rail

Peer C60 clip

Caulk all perimeter joins with cornice adhesive

NOTE: Refer to plasterboard specification for spacing of furring channel to suit radius

Plasterboard

Radius

Peer C39 clip


Purlin or Rafter

Appropriate Screw

Screw through TCR and C39 clip

2 Screws in shear

Bracing


Installation contd


Peer C47-74 clip

Peer C60 clip

Angle cleat

200mm max

Continuous angle 0.75 BMT galv MS 50mm min leg length

Tape and set joint

Plasterboard


Peer C39 clip

Peer top cross rail

Framing member

600mm max


Angle cleat

Peer C60 clip

Peer C47-74 clip

Continuous angle 0.75 BMT galv MS 50mm min leg length

200mm max

Plasterboard


Peer C39 clip

Peer top cross rail

Framing member

Fig 22 - Normal ceiling Joint type A

Fig 23 - Normal ceiling Joint type B

Appropriate Screw

Appropriate Screw

Appropriate Screws in shear





Installation contd

Curved Ceiling

Install curved TCR25 top cross rail as per ceiling framing plan and in accordance with the

above ceiling installation details and appropriate bracing with brace.

Install FC28 furring channels at a spacing to suit the radius of the curved ceiling with Peer

furring channel to top cross rail C39 (locking key) clips

Secure the C39 to the TCR with a screw fastener to prevent slipping.

Refer to plasterboard specification of curved ceiling for spacing of furring channels.

Raked Ceiling

Install TCR38 top cross rail in raking position as per ceiling framing plan and in accordance

with the above ceiling installation details and appropriate bracing.

Install FC28 furring channels at spacing to suit ceiling lining thickness with Peer furring

channel to top cross rail C39 (locking key) securing the C39 to the TCR with a screw

fastener.

Refer to plasterboard specification for spacing of furring channels.

Lining to Ceiling Frame

Plasterboard Installation

Cut the plasterboard sheets to size.

Position the sheet with the recessed edge at right angles to the framing member.

Press sheet firmly against the adhesive (if it is to be used - see manufacturers

specifications) and fasten at the centre line of the sheet on every framing member as

shown in fig 07.

Use full sheets.

Saw cut sheets around openings.

Butt joints must be staggered and not in a straight line across the ceiling.

All plasterboard installation should be in accordance with AS 2588 & AS 2589 and the

manufacturers specifications.


Installation contd

Other Building Board Installation:

All building board installation should be in accordance with the manufacturers specification

and recommended installation methods.

Expansion and Control Joints:

Expansion joints as well as control joints must coincide with those structural control joints

provided in the main structure.

Control joints shall be provided in long continuous ceiling at 12 metres maximum spacing.

Refer to Figs 25, 26 and 27 for control joint at perimeter, parallel to furring channel and

perpendicular to furring channel.

Storage and Site Handling:

Where possible all material used in the construction of steel ceiling framing should be

handled in a manner that reduces the risk of damage. All material should be kept in a dry

area so accidental damage cannot occur.

Plasterboard


Fig 24 Plaster board installation


Installation contd

Examples of various ceiling system control joints

6mm Gap Plasterboard

Wall angle trim


Plasterboard

Peer PXJ30 plasterboard expansion joint (runs parallel to the Furring Channel)

50mm max

Peer furring channel Plasterboard

Peer PXJ30 plasterboard expansion joint (perpendicular to the Furring Channel)

15mm max

Fig 25 - Ceiling to Wall Control Joint At Wall End

Fig 26 - Ceiling Control Joint Parallel to Furring

Fig 27 - Ceiling Control Joint Perpendicular to Furring Channel


Design

Notes

Span tables are prepared for the use of top cross rails, furring channels, top hats and ceiling

battens that are manufactured by Peer Industries Pty Ltd.

Tables are based on permissible stress loading calculated as per

AS1538 - 1988 Cold Formed Steel Structures Code

AS2785 - 1985 Suspended Ceilings Design and Installation

Deflection = As specified under tables

Yield stress = 300 Mpa

Section properties are based on the full section, using the nominal section dimensions

notations which are in accordance with AS 1538.

Refer to the sectional properties tables for full details of all products

All information contained in this brochure is intended as a general guide only for use in

ceiling framing construction.

For use in any other design and construction or for any special structure, please contact

Peer Design by email [email protected]

Call one of our customer service centres on 1300 725 675 or visit our web site

www.peerindustries.com.au

Almost all structures will deflect during service.

Ceiling designers should be aware of the expected deflections of the building structures as

they affect the ceiling.

These deflections may be due to both dead and live loadings.

In fire rated ceiling framing, thermal expansion of steel frames should be expected during

fire service.

Designer should make due allowances for these effects.

The ceiling designer should properly consider framing design and layout around openings in

ceiling systems.

Ceiling spans are determined by various design criteria including: weight of ceiling, wind

loading, deflection limits, material size and required spacings.

For span information to satisfy specific design criteria contact Peer Design.

Some examples detailing various component scenarios have been provided to assist in the

choice of the correct product for most building projects.


SPAN TABLE CCS01 CEILING JOIST - Single Span Wall Studs Lipped

Internal Pressure 0.25 kPa

Stud Size

Thick-ness Maximum Span in mm

mm BMT mm

10mmPlaster board (0.09 kN/M2)



S t u d S p a c i n g i n m m

600 450 300 600 450 300 600 450 300

0.50 2080 2280 2595 2025 2220 2525 1975 2165 2465

64 0.75 2430 2670 3035 2370 2600 2960 2310 2535 2885

1.15 2795 3060 3465 2720 2980 3380 2655 2910 3300

0.55 2385 2710 3080 2335 2635 3000 2290 2575 2925

76 0.75 2785 3055 3470 2710 2970 3380 2640 2895 3295

1.15 3165 3460 3825 3085 3370 3755 3010 3290 3690 0.55 2870 3145 3575 2790 3065 3485 2720 2985 3400

92 0.75 3215 3520 3890 3130 3430 3815 3050 3345 3745

1.15 3655 3900 4270 3575 3830 4190 3515 3760 4120

150 0.75 4395 4695 5135 4310 4605 5045 4230 4525 4955

1.15 4860 5180 5645 4765 5085 5550 4685 5000 5460

Based on:

Deflection = S/360.

Spans are as per AS1538 & AS2785.

Bridging:

0 - 2500mm span = No Bridging.

2500 - 4000mm span = One row of Bridging.

4000 - 6000mm span = Two rows of Bridging.


SPAN TABLE CCS02

Span Table - TH50-115 Top Hat

Ceiling Installation

Top Hat Section TH50-115 = 20x35x50x35x20 x1.15 mm

Lateral Pressure

MAXIMUM TOP HAT SPAN mm

Permissible

kPa Ultimate

Limit

State

Single Span Double Spans Continuous Spans

Top Hat Spacing in mm

600 450 600 450 600 450

0.75 1.12 1485 1635 1990 2190 1835 2020

1.00 1.50 1350 1485 1810 1990 1665 1835

1.50 2.25 1175 1295 1580 1740 1455 1600

2.00 3.00 1070 1175 1385 1580 1325 1455

2.50 3.75 995 1095 1240 1430 1230 1350

3.00 4.50 935 1030 1130 1305 1155 1270

4.00 6.00 850 935 980 1130 1050 1155

5.00 7.50 790 870 875 1010 975 1075

6.00 9.00 740 815 800 920 890 1010

Based on:

Deflection = span/360.

Critical of Strength & deflection

As per AS1538 and AS4600 - Cold Formed Steel Structures Code.

Permissible stress design and ultimate loads.


SPAN TABLE CCS03 Span Table TH75-115 Top Hat


Top Hat Section TH75-115 = 20x35x75x35x20 x1.15 mm

Lateral Pressure

MAXIMUM TOP HAT SPAN mm

Permissible

kPa Ultimate

Limit

State

Single Span Double Spans Continuous Spans

Top Hat Spacing in mm

600 450 600 450 600 450

0.75 1.12 1570 1725 2095 2305 1935 2135

1.00 1.50 1425 1570 1905 2095 1760 1935

1.50 2.25 1245 1365 1660 1830 1540 1690

2.00 3.00 1130 1245 1470 1660 1395 1540

2.50 3.75 1050 1155 1310 1510 1300 1430

3.00 4.50 990 1085 1190 1380 1220 1345

4.00 6.00 900 990 1035 1190 1080 1220

5.00 7.50 835 920 920 1065 970 1100

6.00 9.00 785 865 840 975 850 1000

Based on:

Deflection = span/360.

Critical of Strength & deflection.

As per AS1538 and AS4600 - Cold Formed Steel Structures Code.

Permissible stress design and ultimate loads.


SPAN TABLE CCS04

Span Table TH60-075 Top Hat

MAXIMUM TOP HAT SPAN - SINGLE SPAN INSTALLATION Location on

Wall General Zone Edge Zone Wind

Classification 300MM Spacing

450MM Spacing

600mm Spacing

300MM Spacing

450MM Spacing

600mm Spacing

N1 2300 2000 1850 2050 1750 1600 N2 2300 2000 1800 1950 1700 1500 N3 2000 1650 1450 1650 1400 1200 N4 1650 1350 1200 1400 1150 1000 N5 1400 1100 950 1150 950 800 C1 1750 1500 1250 1500 1200 1050 C2 1450 1150 1000 1200 100 850 C3 1200 950 850 1000 800 700 C4 1000 850 750 850 700 600

MAXIMUM TOP HAT SPAN - DOUBLE SPAN INSTALLATION Location on

Wall General Zone Edge Zone Wind

Classification 300MM Spacing

450MM Spacing

600mm Spacing

300MM Spacing

450MM Spacing

600mm Spacing

N1 2800 2350 2100 2400 2000 1750 N2 2450 2050 1850 2100 1700 1450 N3 2050 1700 1500 1650 1350 1150 N4 1700 1400 1200 1350 1100 950 N5 1400 1150 1000 1100 900 800 C1 1750 1450 1250 1450 1150 1000 C2 1450 1150 1000 1200 950 850 C3 1200 950 850 950 800 700 C4 1000 850 700 850 700 600

MAXIMUM TOP HAT SPAN - SINGLE SPAN INSTALLATION Location on

Wall General Zone Edge Zone

Wind Zone 300MM Spacing 450MM Spacing

600mm Spacing

300MM Spacing

450MM Spacing

600mm Spacing

LOW 2700 2350 2150 2350 2000 1800 MEDIUM 2450 2150 1950 2100 1800 1600

HIGH 2200 1900 1650 1800 1600 1400 VERY HIGH 2000 1650 1450 1650 1400 1200

MAXIMUM TOP HAT SPAN - DOUBLE SPAN INSTALLATION Location on

Wall General Zone Edge Zone

Wind Zone 300MM Spacing 450MM Spacing

600mm Spacing

300MM Spacing

450MM Spacing

600mm Spacing

LOW 2950 2450 2200 2600 2100 1850 MEDIUM 2550 2200 1950 2250 1850 1600

HIGH 2250 1950 1700 1900 1550 1350 VERY HIGH 2050 1700 1500 1650 1350 1150

Notes 1. Material is 0.75 BMT and G300 2. Double span installation assumes that the 2 spans are approximately equal 3. If spans differ by more than 25% the use the single span table


SPAN TABLE CCS05

Span Table FCDB 16mm Batten


Plasterboard MAXIMUM SPAN

in mm

Continuous Span

600 450

10 mm Plasterboard (7 kg/m2) 1050 1150

13 mm Plasterboard (10 kg/m2) 1000 1100

Based on:

AS 3623, Serviceability = Span/600 for G only. AS 1170.2 2002, Serviceability = Span/200 for G + Ws. AS 3623, Ultimate Strength for 1.25G. AS1170.2-2002, Ultimate Strength for 1.2G + Wu. Wind Loads as per AS 4055. G550 and t = 0.38mm. As per AS 4600 - Cold Formed Steel Structures Code.


TCR SPAN TABLE CCS06

Top Cross Rail TCR25 - Wind Category N2

Top Cross Rail

spacing in mm

Span of Top Cross Rail = 900mm Span of Top Cross Rail = 1200mm Furring channel spacing Furring channel spacing

450 600 450 600 FC18 FC28 FC18 FC28 FC18 FC28 FC18 FC28

Allowable ceiling weight in kg/sqm 750 86 86 70 86 36 36 36 36 900 54 71 41 71 28 28 28 28 1000 40 62 30 62 23 23 23 23 1200 23 47 17 45 14 14 14 14

Top Cross Rail TCR38 - Wind Category N2 Top

Cross Rail

spacing in mm




Tables provide the maximum allowable ceiling weight in kg/sqm , supported by Peer framing. Ultimate wind pressure on ceiling = 0.29 kPa. Serviceability wind pressure on ceiling = 0.12 kPa. Figures in italics indicate strength is critical elsewhere, deflection is critical. Shaded means that FC is critical



Top Cross Rail

spacing in mm





Cross Rail

spacing in mm








Top Cross Rail

spacing in mm





Cross Rail

spacing in mm






Top Cross Rail TCR25 - Wind Category C1

Top Cross Rail

spacing in mm




Top Cross Rail TCR38 - Wind Category C1 Top

Cross Rail

spacing in mm







Top Cross Rail TCR25 - Wind Category C2

Top Cross Rail

spacing in mm




Top Cross Rail TCR38 - Wind Category C2 Top

Cross Rail

spacing in mm






SPAN TABLE CCS11

Furring Channel Cyclonic Batten FCCB (0.38 BMT G550)

Tables allow for maximum ceiling board load on ceiling battens

Wind Loading N2- W33N Continuous over Three spans

Continuous Span of Ceiling batten

900 1200

Spacing of ceiling Batten


600 450 600 450

Weight of Ceiling Board in Kg/sqm

29

40

8.5

12.5

Based on: Weight of board in kg/sqm Ultimate wind pressure Wu = 0.29 kPa Serviceability wind pressure Ws = 0.12 kPa Deflection criteria- G = S/600 & G + Ws = S/200 As per AS4600, AS 2785, AS1170 & AS3623

Wind Loading N3-W41N Continuous over Three spans

Continuous Span of Ceiling batten

900 1200



600 450 600 450

Weight of Ceiling Board in Kg/sqm

24

40

---

12.5

Based on: Weight of board in kg/sqm Ultimate wind pressure Wu = 0.45 kPa Serviceability wind pressure Ws = 0.18 kPa Deflection criteria- G = S/600 & G + Ws = S/200 As per AS4600, AS 2785, AS1170 & AS3623


CLIP CAPACITY TABLE CCS 12

Peer clip capacity based on testing by ETRS Report No. 4206-2014/1 21/12/2006. & 4206-2014/3 05/04/2007 and 4206-2014/4-08/06/2007 These capacities are maximum allowable as per AS2785 2000 and 1985 Limit state design capacity is for AS2785 2000 Suspended Ceilings Design and Installation Working load is for AS2785 1985 Suspended Ceilings Design & Installation.

NOTE: Limit state capacity less than 0.50 kN or Working load less than 25 kgs do not use that clip at that particular location.

(Refer to Shaded area CBET-FIX do not use the first tooth of the clip to support furring channel)

Part number Limit Sate design capacity In kN

Working load Weight on boards on clip

In Kgs C001 1.45 82 C001-DCS 3.13 177 C001-SUS 0.94 53 C26-80 0.85 48 C26-180 0.85 48 C37-7H 1.20 68 C37-M6 1.17 66 C39 0.94 53 C42 1.02 58 C47-74 1.75 99 C74 0.93 52 C52 0.90 51 C54 1.68 95 C60 1.64 92 C60DF 1.64 92 C60LDF 1.64 92 C61S Constrained 1.13 64 C61S Not Constrained 0.81 46 C79S 0.95 54 C85 0.53 30 C409 1.20 68 CDB26-80 0.57 32 CDB26-150 0.57 32 CBET.FIX First tooth 0.29 16 CBET.FIX Last tooth 0.67 37 CFCAM First tooth 0.57 32 CFCRESAM First tooth 0.52 29 CFCRESAM Last tooth 0.62 34 CFCSAM 1.59 89 CTCR-100 1.13 63 CTCRRES-100 Last tooth 1.32 74 C24 Suspended 1.31 74 C24 Hard bolted 1.34 75 C66 1.40 79 C001 1.25 70


SECTIONAL PROPERTIES TABLE No. SP-01

FCDB 16mm Ceiling Batten

Peer Part No Thickness

Shear Centre Centroid

Area

Second Moment of Area

Section Modulus

Radius of Gyration

t

mm BMT

YS mm

XC mm

YC mm

A mm2

IX-X x 103 mm4

IY-Y x 103 mm4

ZX-X mm3

ZY-Y mm

3

Rx mm

Ry mm

FCDB16

0.38

8.26

17.485

5.52

28.64

1.154

5.63

107

326

6.35

14.02

Section properties calculated in accordance with AS 1538 and AS 4600 - Cold Formed Steel Structures Code.

Material Specification:

Peer sections are roll formed from zinc coated steel strip which conforms to AS 1397. Zincalume G550 AZ150, Yield Strength - Fy = 550 Mpa & Coating Grade AZ150 g/m2 zinc/alum.


SECTIONAL PROPERTIES TABLE No. SP-02

FCCB 22mm Ceiling Batten

Section Properties calculated in accordance with AS 1538 and AS 4600 - Cold Formed Steel Structures

Code.

Material Specifications:

Peer sections are roll formed from zinc coated steel strip which conforms to AS 1397.

Zincalume G550 AZ150, Yield Strength - Fy = 550 Mpa & Coating Grade AZ150 g/m2 zinc/alum.

Peer Part No Depth Width Thickness


Yield Strength

Area

Mono symmetry

Section Constant

D mm

B

mm

t

mm BMT

YS

mm

XC

mm

YC

mm

FY

MPa

A

mm2

x

mm

FCCB22

21.0

30

0.38

6.75

33.0

10.66

550

49.9

59.6

Peer Part No

Torsion Constant


Section Modulus

Radius of

Gyration

Form Factor

Warping Constant

J

mm4

IX-X

x 103

mm4

IY-Y

x 103 mm4

ZX-X mm3

ZY-Y mm3

Rx

mm

Ry

mm

Q

Iw

x 106 mm4

FCCB22

3.83

3.62

20.12

339

610

8.51

20.1

0.892

0.71


SECTIONAL PROPERTIES TABLE SP-03

Furring Channel FC18 and FC28mm Section Properties

Peer Part No

Depth Width Thickness


Yield Strength

Area

Second Moment

of Area

D mm

B

mm

t

mm BMT

YS

mm

XC

mm

YC

mm

FY

MPa

A

mm2

IX-X

x 103

mm4

IY-Y

x 103 mm4

FC18 18 38 0.42 6.32 25.7 8.73 550 50.0 2.41 14.77

FC28 28 38 0.42 10.7 25.7 13.6 550 60.0 7.01 18.29

Peer Part No

Torsion Constant

Mono symmetry

Section Constants

Section Modulus

Radius Of

Gyration

Form Factor

Warping Constant

J mm4 X

mm ZX-X mm3

ZY-Y mm3

Rx mm

Ry mm Q

IW x 106 mm6

FC18

4.2 43 260 575 6.94 17.2 0.877 0.53

FC28

5.0 53 487 712 10.8 17.5 0.842 1.58

Section Properties calculated in accordance with AS 1538 and AS 4600 - Cold Formed Steel Structures

Code.



Zincalume G550 AZ150, Yield Strength - Fy = 550 Mpa & Coating Grade AZ150 g/m2 zinc/alum.



Top Cross Rail TCR25 and TCR38mm Section Properties

Peer Part No Depth Width Thickness


Yield Strength

Area

D mm

B

mm

t

mm BMT

YS

mm

XC mm

YC

mm

FY

MPa

A

mm2

TCR25

25.4

22.83

0.75

14.4

11.415

11.9

300

67.5

TCR38

38.3 22.83 0.75 21.8 11.415 18.35

300

87

Peer Part No

Torsion Constant


Section Modulus Radius of Gyration Form Factor

J

mm4

IX-X

x 103

mm4

IY-Y

x 103 mm4

ZX-X mm3

ZY-Y mm3

Rx

mm

Ry

mm

Q

TCR25

12.7 5.37

3.91

397 343 8.92 7.61 1.0

TCR38

16.3 15.55 4.70 779 411 13.37 7.35 1.0

Section Properties calculated in accordance with AS 1538 and AS 4600 - Cold Formed Steel

Structures Code



Material: G2 Z275, Yield Strength - Fy = 300 Mpa and coating grade Z275 (275 g / m2 zinc).



TH75-115, TH50-115 Top Hats - Section Properties

Peer Part No

Depth Width Thick-ness

Shear Centre

Centroid Yield Strength

Area


D mm

B

mm

t

mm BMT

YS

mm

XC

mm

YB

mm

YT

mm

FY

Mpa

A

mm2

IX-X

x 103 mm4

IY-Y

x 103 mm4

TH75-115

35

75

1.15

14.9

56.4

20.8

14.2

300

203.8

40.8

236.8

TH50-115

35

50

1.15

13.3

43.9

18.6

16.4

300

174.6

34.6

107.7

Peer Part No

Torsion Constant

Mono symmetry

Section Constants

Section Modulus Radius of Gyration

Form Factor

Warping Constant

J

mm4

Y

mm

ZXXT mm3

ZXXB mm3

ZY-Y mm3

Rx

mm

Ry

mm

Q

IW

x 106 mm6

TH75-115

89.7

108.9

2882

1956

4202

14.2

34.1

0.884

23.23

TH50-115

77.0

86.2

2112

1859

2455

14.1

24.5

0.946

9.59

Section Properties calculated in accordance with AS 1538 and AS 4600 - Cold Formed Steel

Structures Code



Material: G2 Z275, Yield Strength - Fy = 300 Mpa and coating grade Z275 (275 g / m2 zinc).


Notes


Notes

C60LDF- Adjustable suspension clip for slab C52 Spring adjustable C26-80 furring channel clipConcealed Ceiling Steel Products contdCEILING JOIST - Single Span Wall Studs LippedCeiling InstallationTop Hat Section TH50-115 = 20x35x50x35x20 x1.15 mmCeiling Installation

Top Hat Section TH75-115 = 20x35x75x35x20 x1.15 mmFurring Channel Cyclonic Batten FCCB (0.38 BMT G550)

Zincalume G550 AZ150, Yield Strength - Fy = 550 Mpa & Coating Grade AZ150 g/m2 zinc/alum.FCCB22FCCB22FC18TH75-115TH50-115TH75-115TH50-115

Documents

Concealed Ceiling System Technicalmanual