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Description

Twin metal stud insulated partition system 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 1S25 Insulated Partition

Insulation

40 mm

70 mm

Finishing -
Type

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:

60 minutes.

Metal studs:

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

- Centres:

600 mm.

Linings:

12.5 mm Fermacell Gypsum-Fibreboard to external face of each run of studs.

- Fixings:

30 mm Fermacell screws at 250 mm centres.

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

Insulation (minimum density):

  • 40 mm mineral wool: 45 kg/m³.
  • 70 mm mineral wool: 30 kg/m³.

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

- 40 mm mineral wool (45 kg/m³):

  • Height (maximum unbraced): 3.89 m.
  • Thickness (overall): ≥180 mm.
  • Airborne sound resistance (Rw): 57 dB.

- 70 mm mineral wool (30 kg/m³):

  • Height (maximum unbraced): 3.89 m.
  • Thickness (overall): ≥180 mm.
  • Airborne sound resistance (Rw): 60 dB.

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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