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Knauf Throughwall 100 mm SFS / 120min Fire outside to inside

Verified by manufacturer 11 months ago

Knauf UK

External wall infill system, subject to various sight specific requirements e.g. orientation, wind-loading etc. Contact Knauf at during RIBA Stage 2 for guidance and technical support.

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+44 (0)1795 424499 www.knauf.co.uk

Application

External walls in load-bearing concrete or steel-framed structures.


For use with a masonry leaf or rainscreen cladding system.

Description

Knauf Throughwall System is designed for constructing non-loadbearing infill panels for external walls in concrete or steel-framed structures.


Features and benefits:

  • Incorporating internal linings, light-gauge steel sections, insulation, external sheathing and external sheathing insulation.
  • External wall infill system with BBA Accreditation.
  • System performance warranty.
  • Fire test data.
  • Thermal test data.
  • Acoustic test data.

General information

Finish

Plaster

Taped

Jointed

Material

Gypsum

Steel

Size

1200 x 3000 mm

Uniclass

Ss_25_25_45_35 Gypsum board wall lining systemsPrimary

CAWS

K10/165 Wall lining system (metal framing)

K10/35 Wall lining system (metal framing)

Specification data - Gypsum board wall lining systems

System performance

Fire performance of wall lining system to BS EN 1364-1.

Knauf Throughwall achieves 60, 90, 120 minutes Fire Resistance inside to outside and 120 minutes Fire Resistance outside to inside / Thermally, the U-value of a complete wall will depend on the selected panel construction, as well as the external finishes. Examples of upper and lower limit U-values for the system are 0.09W·m-2·K-1 - 0.45W·m-2·K-1. Thermal calculations and test data is available on request /Acoustically, the Knauf Throughwall system achieves between 48dB and 61dB. Acoustic test data is available on request / Knauf Windliner board system is weather resistant / The weather resistance of the wall is dependent upon the cladding and the correct positioning and sealing of all joints. It is essential that openings are appropriately sealed to ensure the weathertightness of the wall system.

Damp-proof course

Not required.

Required.

If required, additional zinc coating or Bitumen painting specified.


Insert requirements.

Support

Knauf metallic components such as Knauf Angle Cleats, Knauf Cill Plates, Knauf Z Bars, Knauf Parapet Posts, etc. See product brochure for more information.

Insulation

See product brochure or contact the manufacturer for more information.

OmniFit Slab.

Knauf Insulation OmniFit® Slab - internal steel framing cavity insulation made of lightweight, non-combustible un-faced glass mineral wool; available in thicknesses of 50 to 150 mm for OmniFit® Slab, in one or two layers to cover the same thickness of the panel equal to the depth of the studs.


Insert requirements.

OmniFit Stud 100 mm.

Knauf Insulation OmniFit® Stud 100 mm - internal steel framing cavity insulation made of lightweight, non-combustible un-faced glass mineral wool; 100 to 180 mm for OmniFit® Stud, in one or two layers to cover the same thickness of the panel equal to the depth of the studs.


Insert requirements.

Rocksilk RainScreen Slab.

Knauf Insulation Rocksilk® Rainscreen Slab 75 mm - external sheathing insulation; lightweight, non-combustible rock mineral wool slabs (the subject of BBA Certificate 19/5609 and available in thicknesses of 50 to 250 mm).


Insert requirements.

Vapour control layer

Knauf offer a foil backed plasterboard solution. Vapour control layer by others is acceptable.

Linings

-

Inner layers

2 x 15mm Knauf Fire Panel.

Knauf internal lining plasterboards, tapered or square edges either 900 or 1200 mm wide and with a maximum height of 3000 mm (subject to plasterboard type).

Face layer

1 x 12.5 mm Windliner.

Knauf external lining - Knauf Windliner Sheathing Board 1 layer of 12.5 mm on the external face) — Paper-faced gypsum boards for use as external sheathing board, 12.5 mm thick (as per BBA Certificate 17/5442) with Knauf Windliner Tape for sealing joints and exposed edges and Knauf Windliner Fixings; low profile headed screws 25 and 38 mm in length.


Insert requirements; see product brochure or contact the manufacturer for more information.

Fasteners

Screw fixings.

Joint treatment

Knauf Jointing Materials used to provide a taped seamless finish in readiness for decoration: Knauf Joint Filler Premium, Knauf Fill & Finish Premium 30/60, Knauf Joint Cement Premium, Knauf Fill and Finish, Knauf Fill and Finish Light, Knauf Airless Finish Light.


Knauf Jointing Tapes: paper tape for reinforcing joints by hand or machine application. Used for vertical (including internal corners) and horizontal joints, and ceiling joints. Knauf Fibre Tape — scrim tape; multi-purpose self-adhesive tape for reinforcing joints and patch repairs to plasterboard for vertical, horizontal and ceiling joints.


Insert requirements; see product brochure or contact the manufacturer for more information.

Finish

Internal face taped and jointed for a Seamless finish using Knauf Jointing Products, Taped and skimmed with Knauf Finishing Plaster, Knauf RMF [Ready Mixed Finishing] in accordance with General clauses.


Insert requirements; see product brochure or contact the manufacturer for more information.

Samples required

Not required.

Required.

Insert requirements; contact manufacturer for more information.

Stud configuration

Knauf SFS ‘C’ studs 100 x 50 x 1.2 mm.

Knauf SFS 'U' Track 104 x 40 x 1.2 mm.

Knauf SFS 'U' Track 104 x 70 x 1.8 mm.

Framing centres

300 mm, 400 mm or 600 mm.

(see design specification.)

Head/ Floor channel

104 mm Knauf SFS 'U' Track, 1.8 mm Gauge, 70 mm Flange / 104 mm Knauf SFS 'U' Track, 1.2 mm Gauge, 40 mm Flange.

Fixing

Steel framing section fixings; Hex head framing screws for structural connections; single, coarse thread; Carbon steel AISI C1022 or low profile frame stitching screws fixing steel to steel (SFS to SFS); Twin, coarse thread; Carbon steel AISI C1022. Knauf SFS Screws - Boards (Countersunk Head) — Screws with countersunk heads and a wing tip for fixing boards to a Knauf SFS Frame.


Insert requirements; see product brochure or contact the manufacturer for more information.

Horizontal board joints

Flat fixing plate.

To back the outer layer plasterboard for fire resistance protection.

Lining fixings

Knauf Drywall Screws – Jackpoint Self-drilling at 300 mm centres/ Knauf Mechanical fixings — Drywall screw jackpoint, bulge or countersunk with undercutting ring headed screws; Carbon steel AISI C1022.


Insert requirements; see product brochure or contact the manufacturer for more information.

Head condition

Structural soffit.

Deflection allowance

+/- 25 mm.

Head insulation detail

Not required.

Required.

Environmental information

Country of product manufacture

United Kingdom

Literature

Knauf ThroughWall Brochure

Knauf ThroughWall Brochure

The Knauf Manual

The Knauf Manual

The Manual Addendum April 2021 (Revised 24th November 2021)

The Manual Addendum April 2021 (Revised 24th November 2021)

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