Knauf Rocksilk RS60 75mm Building Slab

The 75mm 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 odour-free, non-hygroscopic, and rot-proof, containing no CFCs or HCFCs, and resist the growth of fungi, mould, or bacteria.

The 75mm Knauf RS60 unfaced insulation slab has a certified thermal conductivity (λ - lambda value) of 0.035W/mK, delivering high thermal efficiency.

With a density of 60kg/m3, the 75mm RS60 insulation slab works well for various applications, including internal partitions, timber and metal studs, and placement between timber rafters and floor joists.

The 75mm Knauf building slabs feature excellent sound absorption characteristics, delivering significant sound reduction.

Installation is straightforward—simply cut and shape using a large-bladed knife or saw. 75mm Knauf Rocksilk RS60 insulation slab offers practical handling during fitting.

Product specification

• Brand: Knauf®
• Model: 75mm Rocksilk RS60
• Thickness: 75mm
• Length: 1200mm
• Width: 600mm
• Dimensions: 1,200mm x 600mm x 75mm
• Board Coverage: 0.72m2
• Pack Coverage: 4.32m2
• Pack Quantity: 6
• R-Value: 2.10m2K/W
• Thermal Conductivity: 0.035W/mK
• Density: 60kg/m3
• Colour: Brown
• Material: Rock mineral wool
• Fire Classification: Euroclass A1
• Vapour Resistivity: 5.00MNs/g.m.
• Fire Reaction: Non-combustible
• Building Regulations: Class '0'
• Finish: Unfaced
• Shipping method: Articulated Vehicle ǀ Courier
• Applications: Floor ǀ Wall ǀ Roof ǀ Partitions
• Foil faced: No
• ECOSE Technology: Yes
• ETA Notification: Yes
• Features: Thermal and Acoustic Insulation Performance
• Manufacturer: Knauf Rocksilk®

Made to order Facings

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.

Applications

75mm Rocksilk Building Slabs suit many different applications, from pitched roof constructions between rafters to intermediate floors, separating floors, internal stud partitions, and light steel frame infill. Widely used in OEM (Original Equipment Manufacturer) applications for fabricating thermal, acoustic, and fire products, these slabs offer non-combustibility. Rocksilk® Building Slabs come in a range of densities, from 45kg/m3 up to 140kg/m3, catering to diverse application requirements.

Benefits

• One slab type works across multiple applications.
• Factory-applied foil or tissue facing options are available, opening up solutions for a wide range of uses.
• Made from mineral wool, it provides superior sound absorption and reduction compared to other mainstream insulants.
• Constructed from rock mineral wool with a melting temperature exceeding 1000°C, delivering extended fire resistance compared to alternative insulants.

Info

Explore our Knauf Insulation range and filter by thickness or coverage on the left-hand side of the page. For advice on product suitability for your project or to request a quantity discount quotation, please call us on +4402038839057, email sales@insulationbee, or use Live Chat for the best UK Knauf Loft Insulation prices.