Knauf Rocksilk RS60 50mm Building Slab

The 50mm 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.

With dimensions of 1200mm x 600mm, the Knauf RS60 rocksilk insulation slab delivers exceptional thermal and acoustic performance suitable for both new construction and renovation projects.

These slabs are odourless, non-hygroscopic, and rot-proof, containing no CFCs or HCFCs, and resist the growth of fungi, mould, or bacteria.

The 50mm Knauf RS60 unfaced insulation slab features a certified thermal conductivity (λ - lambda value) of 0.035W/mK for reliable thermal efficiency.

With a density of 60kg/m3, the 50mm RS60 insulation slab works well across multiple applications, including internal partitions, timber and metal studs, and positioning between timber rafters and floor joists.

The 50mm Knauf building slabs provide excellent sound absorption qualities, delivering significant sound reduction.

Installation is straightforward—simply cut and shape using a large-bladed knife or saw, making 50mm Knauf Rocksilk RS60 insulation slab practical to fit.

Product specification

• Brand: Knauf®
• Model: 50mm Rocksilk RS60
• Thickness: 50mm
• Length: 1200mm
• Width: 600mm
• Dimensions: 1,200mm x 600mm x 50mm
• Board Coverage: 0.72m2
• Pack Coverage: 6.48m2
• Pack Quantity: 9
• R-Value: 1.40m2K/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

50mm Rocksilk Building Slabs suit a wide range of uses, from pitched roof constructions fitted 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 come in various densities ranging from 45kg/m3 to 140kg/m3, meeting the needs of different applications.

Benefits

• One slab type works across multiple different applications.
• Factory-applied foil or tissue facing options are available, offering flexibility for numerous use cases.
• Made from mineral wool, it provides superior sound absorption and noise reduction compared to many alternative insulation products.
• Constructed from rock mineral wool with a melting point above 1000°C, delivering extended fire resistance performance compared to other common insulants.

Info

Browse our full Knauf Insulation range and refine by thickness or coverage using the filters on the left. For advice on product suitability for your project or to request a bulk discount quotation, get in touch by phone on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Knauf Loft Insulation Prices.