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Roof lining on timber battens with one layer of Fermacell Gypsum Fibreboard, without a layer of structural overlay board.

General information

Uniclass 2015

Ss_30_25_10_35 Gypsum board suspended ceiling systemsPrimary


K10/245 Ceiling lining on timber

K10/25 Lining on timber framed ceilings

Specification data - Gypsum board suspended ceiling systems

Product Reference

Fermacell 2HD11 Roof Lining on Timber Battens

Batten centres (maximum)

400 mm




One layer 12.5 mm Fermacell

Lining fixings

30 mm Fermacell screws at 200 mm centres

35 mm staples at 150 mm centres


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.

Standard product features

Fire resistance:

30 minutes - as roof detail only.

Timber battens:

30 x 50 mm.

Insulation (minimum density):

60 mm mineral wool: 32 kg/m³.

Construction depth:

40 mm.

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.

Offset all board joints by minimum 200 mm.

Environmental information

Recycled content

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

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