Fire Protection to Timber Floor Construction: Knauf C-Form-Soffit Lining CF5/13
Knauf C-Form suspended ceilings.
The Knauf C-Form Suspended Ceiling system uses the minimum number of different components and is extremely easy and quick to install. The system is strong, and suitable for larger ceiling areas.
The Knauf C-Form Suspended Ceiling system can provide up to two hours fire protection and easily accommodates changes in level.
Features and benefits:
- Recommended for large ceiling areas and long spans.
- Recommended when creating deep voids.
- Strong, and resistant to movement.
To be installed in accordance with Knauf’s recommendations and British Standards BS 8212-1995 and BS 8000-8:1994.
The C Form Ceiling system has been designed based on ‘self-weight’ only basis, confirmation of any additional loadings would be required to ensure system performance.
The fire resistance performances are for imperforate ceilings incorporating boards with all joints taped and filled, or skimmed according to Knauf recommendations.
| Uniclass 2015 | Gypsum board suspended ceiling systems (Ss_30_25_10_35) |
| Product Reference | Fire Protection to Timber Floor Construction: Knauf C-Form Soffit Lining CF5/13 |
| Suspension system | - |
| Suspension hangers | Knauf Soffit Cleats fixed to Knauf Strap HangersKnauf 25 x 25 mm Angle SectionsKnauf Soffit Cleats with Knauf 25 x 25 mm Angle SectionsKnauf Universal Brackets |
| Centres | 600 mm900 mm1000 mm1200 mm |
| Upper support channel | Knauf ‘C’ Channels |
| Centres | 600 mm900 mm1000 mm1200 mm |
| Ceiling channels | Knauf ‘C’ Ceiling Channels |
| Centres | 400 mm450 mm600 mm |
| Connecting clips | Knauf ‘C’ Connecting ClipsTo be fixed at intersection between upper support Knauf ‘C’ Channel and lower ceiling Knauf ‘C’ Channels. |
| Lining | - |
| Type | One layer of 12.5 mm Knauf Fire Panel |
| Horizontal board joints | To be picked up Knauf Ceiling Channels |
| Lining fixings | Knauf Drywall screws at 230 mm centres, reduced to 150 mm at the ceiling perimeter |
| Perimeter Sealing | As per required interface detail to material abutment |
| Insulation | Consult manufacturer and insert requirements. |
| Finishing | Taped and Jointed for a Seamless finish using Knauf Jointing ProductsTaped and skimmed with Knauf Finishing PlasterKnauf RMF [Ready Mixed Finishing] in accordance with General clauses |
| Standard product features | Fire resistance (BS 476: Part 22): 30 minutes. Suspension hangers: 1200 mm. Upper channels: 1200 mm. Lower channels: 450 mm. System weight: 12 kg/m². Fixings into substrates: Fixings are used to meet performance constraint [confirmation is required from supplier to meet ceiling specification and any additional loading]. |
| Platform | Compatible | Version | Certified to |
|---|---|---|---|
 Revit | Revit 2017 | 1 | 1.3 |
Ceiling Linings: Soffit Lining IFR1/13
Ceiling Linings: Soffit Lining IFR2/08
Ceiling Linings: Soffit Lining IFR3/08
Contur
Designpanel
Fire Protection to Floor or Roof Cavity above: Knauf C-Form-Soffit Lining CF1/08
Fire Protection to Floor or Roof Cavity above: Knauf C-Form-Soffit Lining CF2/13
Fire Protection to Steel Beams supporting Concrete Floors: Knauf C-Form-Soffit Lining CF3/13
Fire Protection to Steel Beams supporting Concrete Floors: Knauf C-Form-Soffit Lining CF4/13
Fire Protection to Timber Floor Construction: Knauf C-Form-Soffit Lining CF6/13