In a compartmentalised building occupancy with shops, condominiums, offices, and other commercial and industrial uses, legislation requires membrane systems (floor-roof /ceiling and wall assemblies) to be fire-resistant in accordance with standard fire tests. Depending on the application, common fire membrane systems may need to be ‘two way rated’ whilst a floor-roof ceiling system may only be required to be one way rated (underside only).

The most beneficial attributes offered by our LAF separating construction system are the low weight (particularly even with high FRL’s) and reduced thickness in achieving the maximum required FRL period of four (4) hours all with the added benefit of high productivity. The LAF systems may be suspended from superimposed structures, or fixed directly to any structural elements with minimal structural prerequisites.

As a result, LAF separating construction systems are ideal for very high partitions where additional structural members can be installed at the necessary centres to break-up the overall height. In many instances, the systems have been approved for use in providing separation for fire lift shafts where the available space to install such fire barriers is often scarce. 

CSIRO have issued assessment where they purport the observed performance of the Vermitex® sprayed protection system for unrestricted horizontal ceilings and wall membranes as detailed in FCO-2913 during standard fire tests to many fire curves including European, American and International codes. In the opinion of the CSIRO, LAF can use the combination of the Trimesh® and Vermitex® to construct walls, ceilings and air plenums for the conveying of fresh air or smoke spill systems.