Fermacell 1S29 Insulated Partition

Fire resistance:

60 minutes.

Linings:

One layer of 12.5 mm Fermacell to one side; one layer of 12.5 mm Fermacell and one layer of 10 mm Fermacell to the other side.

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

- Fixings:

30 mm Fermacell screws at 250 mm centres on single boarded side; 30 mm Fermacell screws at 400 mm centres and 40 mm Fermacell screws at 250 mm centres on double boarded side.

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.

Metal studs:

• 50 mm Fermacell DIN Standard Steel (50 mm fixing face, 0.6 mm gauge).

• 75 mm Fermacell DIN Standard Steel (50 mm fixing face, 0.6 mm gauge).

• 100 mm Fermacell DIN Standard Steel (50 mm fixing face, 0.6 mm gauge).

Insulation (minimum density):

• 40 mm mineral wool: 45 kg/m³.

• 60 mm mineral wool: 30 kg/m³.

• 70 mm mineral wool: 30 kg/m³.

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

- 50 mm stud, 40 mm mineral wool (45 kg/m³):

• Height (maximum): 2.47 m.

• Thickness (overall): 85 mm.

• Airborne sound resistance (Rw): 54 dB.

- 75 mm stud, 60 mm mineral wool (30 kg/m³):

• Height (maximum): 3.51 m.

• Thickness (overall): 110 mm.

• Airborne sound resistance (Rw): 56 dB.

- 100 mm stud, 70 mm mineral wool (30 kg/m³):

• Height (maximum): 4.56 m.

• Thickness (overall): 135 mm.

• Airborne sound resistance (Rw): 57 dB.