A flexible material available in a range of formats to suit consisting of a four part laminate, incorporating two spacer or isolating layers, a heavy mass absorptive layer and an outer flame/ vapour barrier meeting Class ‘O’ of the UK Building Regulations. Being of a laminated construction it overcomes the need for a separate isolation layer normally required beneath most forms of acoustic lagging or isolated acoustic barriers.

Acousti-lag FL-B uses a polymeric heavy mass barrier material of either 5 kg/m² (WB5) or 10 kg/m² (WB10) surface weights. It is a composite of two layers of INS Class “O” Polyurethane Non-Flammable Acoustic Foam, with an inner isolated layer of heavy mass barium sulphate loaded polymeric barrier.

Features and benefits:

Easy and quick to apply.
Excellent acoustic performance.
Applied as a single layer treatment.
Excellent fire resistance and temperature stability.
Available in various formats to suit application.
Low thermal conductivity.
Low toxicity.

BS 476: Part 6: 1989+A1:2009