Cladding systems are often referred to as rainscreens or ventilated facades. The fast, clean and easy systems exceed the requirements of NCC and allow proven world’s best protection against fire for new buildings and recladding of buildings alike. RH Horizontal Cavity Barrier has been developed to meet the complex requirements of ventilated rainscreens. The Lamella stone wool barrier includes an integral strip of intumescent material along the leading edge. It is fixed to the internal face of the wall construction, leaving the cavity open to allow for daily ventilation and drainage. In a fire, the intumescent expands in a matter of minutes until the gap is closed and a robust fire seal is formed, preventing the spread of fire, smoke and heat. The
Siderise RV vertical cavity closed state cavity barriers complete the fire-stopping SYSTEM.
Key Features
- Allows continuous ventilation and drainage behind external envelope
- Products tested in isolation and in large-scale system tests
- Reactive intumescent has rapid seal closure properties
- Horizontal barriers can incorporate up to 50mm continuous ventilated air space
- Vertical barriers accommodate cladding serviceability movement
- Life cycle
