Acoustic fire rated ceiling system (AC90/1)

The AC90/2FP fire rated ceiling system can be adjusted to ensure level ceilings and can provide void depths from 75mm to 125mm for enhanced sound insulation performance.

Click the Steps below to view diagrams

System Detail Illustration

Adjustable Acoustic Hanger Assembly

Perimeter Channel Detail

Typical Ceiling arrangement viewed from below

We reserve the right to change the specification without prior notice.

Notes

• When 1 hour fire protection is required, use InstaCoustic Intumescent Sealant and two layers of 12.5mm Fireline board or similar. Ensure that the boards are staggered so that no joints coincide.
• When fixing the acoustic hangers into timber floor joists there must be a minimum penetration of 30mm into the joist. When fixing into concrete, load tests may be required to confirm the suitability of the fixing and fixing anchor.
• When fixing perimeter channel there must be a minimum penetration of 30mm into the substrate.

Required Tooling

• Steps / scaffolding
• Pencil
• Laser leveller
• Utility knife
• Hammer drill
• Tape measure
• Battery drill

Please note that system AC90/2 allows for two layers of 12.5mm plasterboard. System AC90/2FP allows for two layers of 12.5mm fireline board.