The 60mm Rocksilk RS60 Knauf Rock Mineral Wool Insulation Slab is a standard-density (60kg/m3) building material, non-combustible and specially designed for versatile applications with outstanding fire performance, classified as Euroclass A1—the highest rating for non-combustible materials.
Featuring dimensions of 1200mm x 600mm, the Knauf RS60 rocksilk insulation slab delivers exceptional thermal and acoustic performance for both new construction and renovation projects.
These slabs are odourless, non-hygroscopic, and rot-proof, containing no CFCs or HCFCs, and will not support the growth of fungi, mould, or bacteria.
This unfaced insulation slab boasts a certified thermal conductivity (λ - lambda value) of 0.035W/mK, delivering high efficiency performance. With a density of 60kg/m3, the 60mm RS60 is ideal for various applications, including internal partitions, timber and metal studs, and placement between timber rafters and floor joists.
The 60mm Knauf building slabs provide excellent sound absorption characteristics, delivering significant sound reduction benefits.
Installation is straightforward—simply cut and shape using a large-bladed knife or saw. The 60mm Knauf Rocksilk RS60 insulation slab offers practical ease during fitting.
For a factory applied foil or tissue facing please request a quotation using the website form or by calling our agents. We do offer single side or double side foil/tissue facings.
60mm Rocksilk Building Slabs suit a wide range of uses, from pitched roof constructions between rafters to intermediate floors, separating floors, internal stud partitions, and light steel frame infill. These slabs are commonly used in OEM (Original Equipment Manufacturer) applications for creating thermal, acoustic, and fire products. Thanks to their non-combustible nature, Rocksilk® Building Slabs are available in a range of densities from 45kg/m3 up to 140kg/m3, meeting the needs of many different applications.
Browse our full Knauf Insulation range and filter by thickness or coverage using the left-hand menu. Need advice on product suitability for your project or a quantity discount quotation? Get in touch by calling +4402038839057, emailing sales@insulationbee, or using Live Chat for the best UK Knauf Loft Insulation prices.








