Fire Resistant Waterproofing
This specially engineered membrane is a waterproof and fire resistant membrane when extra protection is required. The membrane comprises a unique, textured polypropylene (PP) sheet, approximately 1 mm (40 mils) thick, designed with raised studs and grooves. This sheet is paired with a high-strength woven fabric made from basaltic mineral fibers, which boasts exceptional fire resistance properties.
The polypropylene sheet not only forms the structural foundation of the membrane, ensuring its waterproof integrity but also serves as a key element in enhancing its mechanical durability. Meanwhile, the incorporation of basaltic fibre fabric significantly bolsters the membrane's mechanical strength and resistance to fire.
Introducing Newtons Fire Resistant Cavity Drain Membrane System
Key Benefits
Fire resistant for more than 20 minutes at >1000°C
Fixing average of 413 N to withstand the extreme negative pressure/suction of high-speed trains
Protection of the railway tunnel for a minimum of 60 years
Does not require covering, and so the whole of the overnight rail closure can be used for membrane fixing
Thoroughly tested in challenging Norwegian and Faroe Island railway tunnels
Toxic gas emissions during a fire are less than 10% of the maximum allowed level
CO2 formation is less than 20% of the maximum allowed level
Halogen free – No chlorine compounds, bromides or fluorides
Typical Applications
Our Fire-Resistant membrane as part of the Newton Cavity Membrane System
Suitable Substrate
Tunnels
Bare rock surface
Cast concrete walls
Vaults in escape routes
Technical rooms (or similar)
