NBS Source

Description

Timber stud partition system based on Fermacell Gypsum-Fibreboard linings.

General information

Uniclass 2015

Ss_25_10_30_35 Gypsum board partition systemsPrimary

CAWS

K10/15 Lining on timber

K10/205 Lining on timber

Specification data - Gypsum board partition systems

Product Reference

Fermacell 1H21 Timber Stud Partition

Timber studs

75 x 50 mm

89 x 38 mm

Linings

-

Type

One layer 12.5 mm Fermacell and one layer 10 mm Fermacell to each side

Two layers 10 mm Fermacell to each side

Fixings

30 mm Fermacell screws at 250 mm centres

35 mm + Staples at 200 mm centres

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

Site cut boards.

Fermacell Joint Reinforcement Tape and Fermacell Joint Filler

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

Standard product features

Fire resistance:

60 minutes.

Stud centres:

  • 2 x 10 mm Fermacell Lining : 500 mm.
  • 12.5 mm + 10 mm Fermacell lining: 600 mm.

Linings:

Refer to manufacturer's instructions for options on fixing of second layer.

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

Partition performance (based on stud type):

- 75 x 50 mm stud, two layers of 10 mm Fermacell each side:

  • Height (maximum): 4.10 m.
  • Thickness (overall): 115 mm.
  • Airborne sound resistance (Rw): 48 dB.

- 75 x 50 mm stud, one layer of 12.5 mm Fermacell and one layer of 10 mm Fermacell each side:

  • Height (maximum): 4.10 m.
  • Thickness (overall): 120 mm.
  • Airborne sound resistance (Rw): 51 dB.

- 89 x 38 mm stud, two layers of 10 mm Fermacell each side:

  • Height (maximum): 4.10 m.
  • Thickness (overall): 129 mm.
  • Airborne sound resistance (Rw): 48 dB.
  • 5–7 mm filler joint option is not suitable for use on this size of stud.

- 89 x 38 mm stud, one layer of 12.5 mm Fermacell and one layer of 10 mm Fermacell each side:

  • Height (maximum): 4.10 m.
  • Thickness (overall): 134 mm.
  • Airborne sound resistance (Rw): 51 dB.
  • 5–7 mm filler joint option is not suitable for use on this size of stud.

Environmental information

Recycled content

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

Literature

Fermacell Orange Book

Fermacell Orange Book

Third party certifications

  • 90/2439
  • ETA
  • ECO Institute

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