- Overview
- Technical Info
- Downloads
- Notes
Suspended Ceiling Systems
Designed to exactly replace timber
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Stability
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Accurately Dimensioned
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Lightweight
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Location pattern for fixing
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Easy to handle
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No movement
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No moisture
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No nail popping
CB22 System
Rollformers direct-fix Super Span Suspended Ceiling System provides a simple method of building both fire rated and non-fire rated ceilings. By using Rollformers steel channels and other primary rails complete with clips, ceiling membranes can be directly and positively fixed using self-drilling and tapping recessed headed screws. This results in a cost effective and dimensionally stable ceiling or wall plane, for any architectural solution.
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38mm Strong Back Channel |
22mm Ceiling Batten |
22mm Ceiling Batten Clip |
20x20mm Lipped Angle |
22mm Perimeter Channel |
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Suspension Strap |
Adjustable Hanging Clip |
Wall Clip |
Adjustable Wall Clip |
CB 35 System
Rollformers Super Span CB35 Ceiling Batten has been designed to provide a sound framework to fix board for fibrous plaster installation. Its lightness, strength, dimensional accuracy, and stability overcome problems associated with timber framing. There are no problems with unpredictable moisture content resulting in movement, subsequent nail popping and joint movement.
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35mm Ceiling Batten 0.55 Galvanised Steel |
35mm Perimeter Channel 0.55 Galvanised Steel - 3.0 metre |
40x40mm Trim Angle 0.55 Galvanised Steel - 3.0 metre |
Hanging Clip 0.55 Galvanised Steel |
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Super Span CB35 Ceiling Battens have been designed for use as ceiling battens to support Fibrous Plaster Gypsum Plaster Board attached to ceiling joists and the bottom chord of roof trusses. They are intended for spans not exceeding 1200mm and spacings not exceeding 600mm.
Super Span CB35 Ceiling Battens have a limited ability to support loads. Where there is a requirement for point loading, extra strength can be achieved by positioning additional lengths of batten as necessary.
Super Span CB35 Ceiling Battens are not intended to support loads during construction that are more than the in-use ceiling support and will not support the weight of a person.
Producer Statement
Super Span CB35 Ceiling Battens are manufactured by Rollformers 2000 Ltd using G250/Z275 galvanised steel with a base metal thickness of 0.55mm, and are produced in accordance with NZS 3441: 1978.
CB35 Batten Dimensions
Width overall: 96mm
Depth overall: 36mm
Fixed or bearing surface: 50mm
Stock length: Cut lengths to order. 3-4 days lead time required.
Suspended Ceiling Systems
Batten Spans and Spacings
Span |
Maximum Spacings |
Maximum Uniformly Distributed Load Kg/m2 |
900 |
450 |
60 |
650 |
47 |
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1200 |
450 |
37 |
650 |
27 |
Because of the unique cutout at the end of each length of Super Span CB35, fixing is very simple. Where the end of the batten fits onto the ribbon plate simply slip the cutout over the plate and fix back with 25 x 10g self-drilling wood screws or 40mm galvanised flathead nails.
Point Loads
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Fixing Battens to Trusses or Joists
The CB35 Batten can be manufactured to your room requirements:
- Non Notched - Used in conjunction with perimeter channel (refer diagram below).
Fixing without Ribbon Plate
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Single Notched - Product is notched at one end. Designed to slip over Ribbon Plate for ease of installation (refer diagram below).
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Double Notched - Product is notched at both ends.
Designed to slip over Ribbon plate for ease of installation (refer diagram below).
Notched Batten for fixing with Ribbon Plate
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No secondary products required.
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Folded edges for easy handling and safety.
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Location pattern to resist screw slipping.
Ceiling Linings
Super Span CB35 Ceiling Battens are designed to support gypsum plaster and fibrous plaster ceilings with spans up to 1200mm. Fastening of the lining to the batten should be made with Gypfast needlepoint screws:
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25 x 6 Type S for 9.5mm board
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32 x 6 Type S for 12mm board
Adhesives may be used as recommended by the lining manufacturer.
Suspended Ceiling Systems
Notes on Product Handling, Storage and Use
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Battens should be stored in a dry, flat area to ensure that the product is not distorted, scratched or damaged. Should moisture damage occur, the product should be separated and dried. Failing to do this could impair the life of the galvanised coating.
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Battens should not be used in corrosive atmospheres or in contact with tanalised timber, copper products or chemically treated products (e.g. insulation)
- If used in a roof situation, a thermal barrier should be used over the batten.
- Installation of battens should not be started until after the building has been closed in.
- Special attention should be paid to all electrical wiring regulations.
- Battens are not designed to be walked on.
- All roof spacings that are accessible should be provided with walking planks.
- Refer to NZS 4203: 1992 Table 3.4.1 Category 1, Domestic 1.1.
CB35 Specification
At these spans the ceiling battens will support all proprietary ceilings with the addition of a 0.5Kpa line load, hence meeting NZS 4203 : 1992 Table 3.4.1 Category 1, Domestic 1.1. All deflections are within 1500 of span, i.e. 2.5mm for
1200mm span and 2mm for 900mm span. For specific design requirements involving extraordinary loading, e.g. heavy light fittings, contact the manufacturers Technical Department.
CB22 Specification
At the spans in the diagram below, the ceiling battens will support all proprietary ceilings with the addition of a 0.5 Kpa line load, hence meeting NZS 4203 : 1992 Table 3.4.1. Category 1, Domestic 1.1. All deflections are within 1/500 of span, i.e. 2.5mm for 1200mm span and 2mm for 900mm span. For specific design requirements involving extraordinary loading, e.g. heavy light fittings, contact the manufacturers Technical Department. All testing has been carried out by John Yolland & Associates Ltd, Consulting Engineers, Auckland.
Suspended Ceiling
Fire Ratings
All Rollformers steel components are non combustible (BS 476 Part 4 AS1530:1990). All direct-fix ceiling components are manufactured by Galv Steel G250 Z275 NZS 3441.
NZBC Compliance
Use of the Super Span CB35 Ceiling Batten in accordance with the stated guidelines and limitations thereby complies with the following clauses:
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B1 Structure
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B2 Durability (B.S. 0024: 1973 and past history of galvanised steel products in dry interior environments indicate a life of 50 years can be reasonably expected.)