Fermacell 1S32 Insulated Partition

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.

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.