Paraflam® Ultra is a high-performance dry-fit perimeter fire stop, specifically developed for curtain walling façades and perimeter slab edge applications.
Tested to EN 1364-4, it achieves EI120 fire performance, providing proven protection against the spread of fire and smoke through the façade void.
Its dry-fit design allows for 6% of movement, supporting compression and expansion in between the substrate and the external façade.
Explore the technical documents, test data, and installation guidance below to learn more about how Paraflam® Ultra supports safe, compliant façade design.
All the technical details you need to specify Paraflam® Ultra for curtain walling façades.
Rainscreen façades offer modern design flexibility and weather resistance, but their ventilated cavities introduce specific fire risks. Unprotected cavities can act as chimneys, allowing fire to travel unseen behind panels. A compliant, open state cavity barrier system is vital to limit fire spread while allowing drainage and ventilation to perform as intended day-to-day.
Our solution for rainscreen facades comprises 2 dry-fit cavity barrier products:
Silverliner® Open State Cavity Barrier (OSCB) – installed at the horizontal compartment lines leaving an air gap of 25 or 50mm, depending on the requirement. Silverliner® OSCB contains an intumescent strip along the front face, which swells when exposed to heat – quickly closing the air gap and preventing the spread of flames through the cavity.
Paraflam® SEB – a closed state barrier that’s installed at the vertical compartment lines. With no requirement for an air gap in the vertical barriers, Paraflam SEB is friction fitted using brackets, providing an effective smoke & flame seal.
Everything you need to specify our rainscreen cavity barrier systems in one place.
Discover how Silverliner® Open State Cavity Barriers protect against fire while maintaining ventilation in our whitepaper.
Masonry façades remain a popular choice for their durability, acoustic performance, and traditional appearance. However, even in solid, non-combustible constructions, hidden voids and interfaces, for example around floors or windows, can compromise fire integrity if left unprotected. Our Paraflam® SEB solution for masonry façades is designed to maintain the structure’s inherent fire resistance.
Paraflam® SEB is a closed state cavity barrier designed for use in masonry façades. Friction fitted using brackets, Paraflam® SEB is manufactured from non-combustible stone wool with a foil facing, it prevents fibre migration and provides an effective fire and smoke seal.
All the technical details you need to specify Paraflam® SEB in masonry façades.
