Tenmat - Model VFB 120/120 -Ventilated Fire Barrier

Tenmat’s VFB 120/120 Ventilated Fire Barriers are ’open state’ cavity fire barriers for ventilated cavities of up to 450mm. The VFB 120/120 then leaves a maximum 25mm air gap to allow for drainage and maintain ventilation in normal use. In a fire situation, the intumescent seal rapidly expands to seal off the air gap and prevent vertical fire from spreading within the external wall. The VFB 120/120s are mechanically fixed horizontally within ventilated cavities behind the external wall substrate following the fire compartment line. The VFB 120/120s are used horizontally and can be installed in conjunction with Tenmat NVFB Non-Ventilated Fire Barriers which provide vertical fire separation along fire compartment party wall lines.