Envirograf Un-Ventilated Rainscreen Cavity Barrier for up to 130 minutes protection

About Un-Ventilated Rainscreen Cavity Barrier

The Un-ventilated Rainscreen Cavity Barrier is a thin flexible foil faced intumescent strip which is fixed in a horizontal or vertical position in a brick or concrete wall and is held in place with by either a bracket or washer fixings.

The barriers are designed to allow insulation material to be installed both above and below the barrier.

High tensile foil protection ensures optimum durability and moisture protection. Flexible mesh structure provides enhanced robust strength and flexibility to the barrier section.

All barriers have a 30mm upstand for screw or nail fixing either vertically or horizontally . It has a powerful intumescent seal that in the event of a fire will expand filling the cavity stopping the spread of fire and smoke.

For technical data please call us  01793 525 241.