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Description

Twin stud, insulated partition system with high acoustic performance, based on Fermacell Gypsum-Fibreboard linings.

General information
Uniclass 2015
Ss_25_10_30_35 Gypsum board partition systemsPrimary
CAWS

K10/125 Metal stud partition system

K10/30 Metal stud

Specification data - Gypsum board partition systems
Product Reference

Fermacell 1S32 Insulated Partition

Studs

Twin 50 mm

Twin 75 mm

Linings -
Type

One layer 12.5 mm Fermacell and one layer of 10 mm Fermacell

N.B When using Tapered Edge Boards, first layer must be a Square Edge Board, for double layer systems.

Two layers 12.5 mm Fermacell

N.B When using Tapered Edge Boards, first layer must be a Square Edge Board, for double layer systems.

Lining fixings

30 mm Fermacell screws at 400 mm centres and 40 mm Fermacell screws at 250 mm centres

Both layers fixed to studs.

30 mm Fermacell screws at 250 mm centres

First layer fixed to studs, outer layer fixed board to board.

Insulation

50 mm

60 mm

Finishing -
Type

Not required

Fermacell Fine Surface Treatment (FST)

Joint treatment

Fermacell Jointstik 1 mm glued joint

Square edged boards.

Fermacell Joint Filler 5–7 mm filled joint

For site cut boards.

Fermacell Joint Reinforcement Tape and Fermacell Joint Filler

Taper edge boards.

Standard product features

Fire resistance:

90 minutes.

Recycled content:

Best Fermacell gypsum fibreboard contains 100% recycled content. All by-products recyclable.

Other requirements:

Fire stopping around service penetrations. Frame out openings with the same number of layers of board as per above specification. Sockets backed using baffle boxes, intumescent putty pads or suitable rock mineral wool, sufficient to maintain the fire/acoustic performance.

Movement joints are required at maximum 8 linear metre intervals.

Refer to manufacturer's literature. Vapour barrier as required for high humidity areas.

For tiled areas reduce studs to 400 mm centres as required. Tile adhesive to be suitable for gypsum based substrate.

Provide door reinforcement as required to suit door weights and opening size. Ensure no vertical joints at door jambs.

Offset all board joints by minimum 200 mm.

Product Options

Metal studs:

  • Twin 50 mm Fermacell DIN Standard Steel (50 mm fixing face, 0.6 mm gauge) studs with 10 mm minimum gap between.
  • Twin 75 mm Fermacell DIN Standard Steel (50 mm fixing face, 0.6 mm gauge) studs with 10 mm minimum gap between.

Insulation (minimum density):

  • 50 mm mineral wool: 50 kg/m³.
  • 60 mm mineral wool: 35 kg/m³.

Partition performance (based on stud type and insulation density/ thickness):

- Twin 50 mm studs, 10 mm minimum air-gap, 10 + 12.5 mm Fermacell to each side:

  • Height (maximum): 3.05 m.
  • Thickness (overall): From ≥155 mm.
  • Airborne sound resistance (Rw): 64 dB.
  • For greater heights cross bracing can be used. This affects the sound performance and additional guidance should be sought.

- Twin 75 mm studs, 10 mm minimum air-gap, 10 + 12.5 mm Fermacell to each side:

  • Height (maximum): 3.5 m.
  • Thickness (overall): From ≥205 mm.
  • Airborne sound resistance (Rw): 64 dB.
  • For greater heights cross bracing can be used. This affects the sound performance and additional guidance should be sought.

Environmental information
Recycled content

Best Fermacell gypsum fibreboard contains 100% recycled content. All by-products recyclable

Literature
Third party certifications
  • 90/2439
  • ETA
  • ECO Institute
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