Cavity barrier solutions for brick slip cladding systems

Fire resistance performance within brick slip cladding systems. VFB Horizontal ‘open state’ cavity barriers and VFB Vertical cavity fire barriers.

Cavity barrier solutions for brick slip cladding systems

Fire resistance performance within brick slip cladding systems. VFB Horizontal ‘open state’ cavity barriers and VFB Vertical cavity fire barriers.

VENTILATED CAVITY FIRE BARRIERS

Passive fire protection for brick slip cladding

Tenmat’s VFB Horizontals are ’open state’ cavity fire barriers for installation horizontally behind brick slip systems. They are designed to leave a 25mm air gap that allows for drainage and ventilation that is then sealed off in a fire situation.

The VFB Verticals are intumescent cavity fire barriers to be installed vertically behind brick slip systems. They are designed to be friction fitted to the back of the horizontal rails with intumescent capabilities to seal any remaining gaps around rails to the back of the brick slips.

VENTILATED CAVITY FIRE BARRIERS

Brick slip cavity fire barriers

The VFB Horizontals are 3rd party fire tested to ASFP TGD 19 (Fire Resistance Test for ‘Open State’ Cavity Barriers, whereas the VFB Verticals are tested to EN 1366-4 (Fire Resistance Test for Linear Joint Seals).

Each VFB variant consists of a specially formulated fire rated stone mineral wool section with an integral high expansion intumescent seal fixed to the leading edge. In a fire situation, the intumescent seal rapidly expands to seal off the air gap horizontally and seals vertically around the rails to the back of the brick slips.

Brick slip cavity fire barriers at a glance

3rd Party Fire Test behind brick slip systems
Tests include Ash & Lacy NaturAL-X and Mechslip systems
Fire Ratings of min. 90 minutes integrity and min. 30 minutes of insulation for cavities up to 395mm
Fire Tested on Steel Frame Systems (SFS), concrete, masonry and blockwork inner substrates