30mm Rockwool Hardrock Multi-Fix Recovery Board Flat Roof Insulation - 1200mm x 1000mm (1.2m²)

Rockwool Hardrock is a super dense mineral wool insulation board designed for use in flat roofing. The Multi-Fix Recovery board is specifically designed for use in refurbishment of flat roofs, particularly in commercial buildings such as schools. Made from a non-combustible material, it is ideal for use in combination with torch-applied waterproofing such as bitumen membrane, whilst maintaining a thermal conductivity value of 0.039 W/mK and providing effective sound insulation. The board is dense enough to provide a level surface for waterproofing membranes, whilst accommodating minor imperfections in the existing external finish. 

Rockwool Hardrock Recovery Board measures 1000mm wide by 1200mm long (1.2m²) and is 30mm thick. 

The method of installation may vary depending on your specific project and materials, however, Hardrock Recovery Board is recommended specifically for use in flat roof refurbishments such as to bring roofing up to building standards. It is typically installed directly over the roofing membrane and insulation, and bonded to the surface mechanically or with appropriate adhesive. It should be laid in a “staggered” formation with the fleeced side facing upwards. For more detailed installation information, consult the installation guide. 

Rockwool Hardrock Multi-Fix Recovery Board has a fire rating of Euroclass A2-s1, d0.