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Knauf Metal Stud Shaftwall Partition 146CT 120-120FR

Knauf Metal Stud Shaftwall Partition 146CT 120-120FR

Verified by manufacturer 8 months ago

Knauf UK

Fire and sound insulation partition system utilizing a lightweight framework built from one side.

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

Application

Knauf Shaftwall is an innovative system for forming enclosures around service and lift shafts where there is limited access from one side.


Suitable for commercial and residential projects.


To be installed in accordance with Knauf recommendations and British standards.

Description

Knauf Shaftwall systems offer economic solutions to provide non-load-bearing lift or stair enclosures, utilizing a lightweight framework built from one side.


Features and benefits:

  • The exclusive galvanized steel sections used in the Knauf Shaftwall system, Knauf ‘C-T’ Stud, allow quick and safe construction from one side with the minimum number of components.
  • Acoustic sound reduction based on ‘C’ Stud centres at 600 mm centres. Systems tested or assessed in accordance with BS EN ISO 10140-1:2010+A2:2014.
  • Up to 120 minutes' fire resistance.
  • Robust.
  • Proven in tall buildings across the UK.
  • Compliance: EN 14195.


Consult manufacturer for more information.

General information

Color

Pink

Finish

Seamless

Primed

Material

Gypsum

Limestone

Quartz

MMMF

Shape

Rectangle

Size

193 x 8300 mm

Uniclass

Ss_25_10_30_35 Gypsum board partition systemsPrimary

CAWS

K10/30 Metal stud

K10/125 Metal stud partition system

Specification data - Gypsum board partition systems

System performance

To BS EN 520 Types A and F (CE mark).

Framing

Framing Stud Configuration: 146 mm Knauf 'CT' stud (0.92 mm gauge).

Framing Head: 148 mm Knauf ‘U’ channel. Floor Channel: 148mm Knauf ‘J’ channel.

Insulation

25 mm Knauf insulation acoustic roll.

Fire separation

-

Cavity fire barriers

Three layers of 15 mm Knauf fire panels to lobby/ room side.

Fire-stopping

120 minutes.

Linings

-

Inner layers

One layer of 19 mm Knauf core board to shaft side.

Fasteners

Framing Fixing and Fire Panel Fixing:

Knauf Nailable plugs and drywall screws.

Joint treatment

Manufacturer's standard.

See guidance under 'Finish' below.

Finish

  • Taped and jointed for a seamless finish using Knauf Jointing Products.
  • One coat of Knauf Wallboard Primer applied immediately after taping and jointing. Or option of Knauf RMF (Ready Mixed Finishing).
  • Systems with a requirement for fire and/ or sound insulation performances should be installed with all outer joints taped and filled in accordance with Knauf recommendations.

 

Insert requirements; contact manufacturer for more information.

Samples required

Not required.

Required.

Insert requirements; contact manufacturer for more information.

Framing centres

600 mm.

Horizontal board joints

Flat fixing plate.

Perimeter Sealing

Manufacturer's standard.

  • For fire rated systems, two continuous 6 mm beads of Knauf Intumescent and Acoustic Mastic should be installed underneath the floor track, between the head track and board fillet(s) and between the board fillet(s) and the soffit.
  • A bead of Knauf Intumescent and Acoustic Mastic is also required to the board perimeter edges to achieve a fire and acoustic rated seal to the structure.
  • Knauf Sealant can be used as a perimeter seal for non-fire rated junctions/ perimeters to achieve an acoustic seal only.

Head condition

Structural soffit.

Deflection allowance

For systems requiring 60, 90 or 120 minutes, consideration should be given to the deflection head detail.


See Knauf Standard Details or contact manufacturer for more information.

Head track fillets

As per site specific requirements.

Insert requirements; see Knauf Standard Details or contact manufacturer for more information.

Head insulation detail

See Knauf Standard Details or contact manufacturer for more information.

Height

(Maximum):

8300 mm.

FireRating

120 minutes.

Maximum heights and fire resistance:

  • Maximum heights – calculated based on a limiting deflection of L/240 at 200 Pascals (0.2 kN/m²).
  • The maximum heights related above is for fire resistance of system to meet project requirements of BS 476: Part 22: 1987 only.
  • For maximum heights in relation to meeting project requirements of BS EN 1364-1:2015, please consult Technical Services.
  • For systems requiring 60, 90 or 120 minutes, consideration should be given to the deflection head detail - see Knauf standard details for more information.

AcousticRating

(Rw):

54 dB.

Acoustic sound reduction dB (Rw):

  • Systems tested or assessed in accordance with BS EN ISO 10140-1:2010+A2:2014.
  • Acoustic sound reduction based on ‘C’ Stud centres at 600 mm centres.

Duty

Severe.

Width

193 mm.

Literature

Knauf Board Range Brochure

Knauf Board Range Brochure

The Knauf Manual

The Knauf Manual

Fire Panel - PDS

Fire Panel - PDS

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

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

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