CVB/LAM Acoustic Void Barrier for ceilings

Stonewool acoustic barriers to reduce sound transmission and provide firestopping in ceilings

Acoustic void barriers for suspended ceiling

CVB/LAM Acoustic Void Barrier is a block of Lamella featuring a stone wool core with vertically oriented fibres laterally compressed and held in place by a foil facing. It has been designed and tested to resist the spread of fire and heat in unseen voids. It can be used to provide continuity of fire resistance when aligned directly above internal walls.

Up to 2 hours fire resistance

CVB/LAM Acoustic Void Barrier has been tested to EN 1366-4 for up to 120 minutes fire resistance (integrity and insulation).

Tested acoustic performance

CVB/LAM Acoustic Void Barrier can reduce room-to-room sound transmission, improving privacy and preventing disturbance from neighboring rooms. Tested in accordance with BS EN ISO 10140-2:2021.

Range of applications

CVB/LAM Acoustic Void Barrier is suitable for use as an acoustic barrier in voids upto 1200mm and as a Firestop in voids up to 1000mm.

Third-party verified EPD

The environmental impact of all products in the RF Cavity Barrier and Firestop range has been assessed through a lifecycle assessment (LCA) and is detailed in a third-party verified EPD (Environmental Product Declaration) created in accordance with BS EN 15804+A2:2019 and ISO 14025.