A1 Steel Frame Cavity Rail Stone Wool Brick Slip System

Our Stone Wool Brick Slip Cavity Rail System is an ideal solution for steel frame substrates that require a drainage cavity between the sheathed steel frame and insulation.

The cavity is ‘partially ventilated ’, meaning the effect on the through-wall U-value is minimal, with small drainage holes in the base track allowing any moisture to escape from the system. New-build insurers such as the NHBC, Premier Guarantee, and LABC insist on a cavity on new-build projects, making the ROCKWOOL Wall Systems Cavity Rail system an ideal solution.

The unique ROCKWOOL Wall Systems RagRail simplifies installation and, combined with Stone Wool insulation and a Brick Slip finish, achieves an A1 fire rating to BS EN 13501-1, allowing installation in high-rise buildings. Integrating A1 Stone Wool insulation provides excellent thermal benefit and acoustic performance, while still achieving the highest level of impact resistance. The real clay brick slip finish provides a robust and genuine brick appearance, identical to a traditional brick property.