Fire Protection for Modular Buildings

Modular construction is typically 70% faster than traditional building methods and is used for quality-built offices, class rooms, hospitals; modular can either be used in the interim of a build or permanently.

Whatever the purpose of a modular build, modular construction can be built to any scale which needs structural steel support that is likely to require fire protection.

Why Rockliner is the perfect solution?

Rockliner is a fire rated casing used for the protection of structural columns and beams. The system comprises a pre-formed metal encasement lined with Spiralite to provide the fire rating.  It is installed using a snap-lock method for a strong and stable installation, it is prefabricated, ready for quick install on site.

Rockliner has been installed throughout the UK on projects in commercial, retail, manufacturing, food processing, education sectors. Rockliner will ensure that modular construction remains a fast way to achieve your goals offering speedy installation and reassurance that the building is safe from the effects of fire.

Rockliner is designed to last the lifetime of the building and is weather resistant.

Casing thicknesses vary according to the fire rating and the steel sizes.  Our technical support advises on design and lining thickness to ensure the installation is correct.

Rockliner has been independently tested and assessed by BRE to British standards in accordance with the 5th edition of the ASFP Yellow Book.

In summary:

  • Extensively used with a proven track record.
  • Up to 2 hours fire rating. 
  • Wide scope for protecting square hollow sections.
  • Pre-fabricated and easy to install.
  • Colour finishes and brand matching.
  • Specialist finishes, in particular food processing areas. 
  • Fascia available via our fabrication service.
  • Technical support and advice
  • Tested to British standards.


Apart from our standard fire rated systems we are able to provide customers with a broad range of fabricated insulation

Metal work, lining and product conversion are at the core of our production processes. Our fully equipped factory facilitates the fabrication of bespoke product. This can be undertaken on a one-off basis or by partnering with companies looking to subcontract all or part of their system fabrication. 

Our professional and technical services include everything from design, engineering, prototype and manufacture through to delivery.

Fabrication services include:

  • Insulated panels
  • Fascia for Mezzanine Floors
  • External and internal walls
  • Specialist applications.  Food-safe, Extract ducts & Encasements
  • Channels, angles and framing
  • Decorative panels
Rockliner fire rated column casings
Cryotherm Fabrication Installation

Support & Advice

Find out how we may help you

Client Testimonials