Unilin Insulations has unveiled its new non-combustible Rainscreen Cladding Wall Insulation (SW/RS) to the UK market, providing architects, contractors, and developers with a robust alternative in an increasingly demanding construction environment.
In recent years, stone wool has seen rising demand across the UK building sector, largely driven by its performance in three critical areas: fire safety and acoustic comfort. Manufactured from volcanic rock minerals that are heated to extremely high temperatures before being spun into fibres, stone wool offers a unique blend of durability and safety.
With the launch of SW/RS, Unilin Insulation brings these benefits to projects requiring rainscreen cladding wall applications. The product is Euroclass A1 fire-rated, the highest classification under the European system, meaning it is non-combustible and capable of withstanding extreme heat without contributing to fire spread. This makes it particularly suitable for high-rise and buildings where fire safety regulations are stringent.
Beyond fire performance, SW/RS delivers excellent thermal insulation, helping to reduce heat loss in winter and limit overheating in summer. By improving building fabric efficiency, it supports compliance with UK Building Regulations while contributing to reduced energy bills and year-round occupant comfort. Its acoustic properties also enhance quality of life, with the dense stone wool fibres absorbing and blocking sound transmission to reduce noise from both external sources and within the building itself.
Practicality has not been overlooked. Stonewool is water repellent yet vapour permeable, meaning it resists rot and mould while allowing buildings to breathe. This durability ensures long-term performance. Unilin’s SW/RS boards are available in a standard size of 1200mm x 600mm and a wide range of thicknesses from 50mm to 200mm, giving design flexibility for both timber and steel frame constructions.
Image Caption:Close-Up of the SW/RS (Stonewool Rainscreen) with explainer
The product has already proven successful in the Irish market, where it has been widely adopted across commercial and residential projects. Unilin’s decision to expand into the UK reflects both confidence in the system and the growing demand for high-performance, non-combustible insulation solutions.
As regulations and client expectations continue to evolve, SW/RS offers a solution that addresses compliance, comfort, and sustainability in one package. Unilin’s Technical Team is available to support you with detailed guidance. For further information on SW/RS Rainscreen Cladding Wall Insulation, visit www.unilininsulation.com or contact the team directly for tailored technical advice on 0 371 222 1055.