Permarock is a leading manufacturer and supplier of external wall insulation (insulated cladding) and exterior render systems.

Our accredited systems are suitable for all forms of construction and building types, in the new and existing building markets, having been developed to suit the requirements of the UK market in terms of technical / fire performance and to meet UK Building Regulations.

Permarock offers a wide range of systems and renders/finishes, enabling the creation of interesting, functional, and durable façades. With an excellent track record spanning over 40 years, we provide unparalleled levels of support, proactively engaging with project design and construction teams, and offering significant technical support to ensure the performance achieved by the specified system is of the highest standard.

Fire-Safe Cladding Systems

Permarock Mineral Fibre Systems are suitable on buildings with floor levels above 11 metres above ground level and assessed to EN13501-1 achieving an A2-s1,d0 classification. They have been tested to BS 8414 and meet the requirements of BR 135 - ‘Fire performance of external thermal insulation for walls of multistorey buildings’ and also achieve a 'Class O' classification under the Building Regulations Part B for fire spread across the surface.