60mm Knauf Rocksilk RS45 Building Slab

The 60mm Rocksilk RS45 Knauf Rock Mineral Wool Insulation Slab is a standard-density (45kg/m3) building material that's non-combustible and engineered for diverse applications with outstanding fire performance, achieving Euroclass A1—the highest classification for non-combustible materials.

Sized at 1200mm x 600mm, this Knauf RS45 rocksilk insulation slab delivers exceptional thermal and acoustic performance for both new builds and refurbishment work.

These slabs are odourless, non-hygroscopic, and rot-resistant, containing no CFCs or HCFCs, and won't support the growth of fungi, mould, or bacteria.

With a certified thermal conductivity (λ - lambda value) of 0.035W/mK, the 60mm Knauf RS45 unfaced insulation slab provides reliable thermal efficiency.

Produced at 45kg/m3 density, this 60mm RS45 slab works well for various applications, including internal partitions, timber and metal studs, and placement between timber rafters and floor joists.

The 60mm Knauf building slabs feature excellent sound absorption properties, delivering significant sound reduction.

Installation is straightforward—simply cut and shape using a large-bladed knife or saw, making 60mm Knauf Rocksilk RS45 practical for on-site fitting.

Product specification

• Brand: Knauf®
• Model: 60mm Rocksilk RS45
• Thickness: 60mm
• Length: 1200mm
• Width: 600mm
• Dimensions: 1,200mm x 600mm x 60mm
• Board Coverage: 0.72m2
• Pack Coverage: 5.76m2
• Pack Quantity: 8
• R-Value: 1.70m2K/W
• Thermal Conductivity: 0.035W/mK
• Density: 45kg/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

60mm Rocksilk Building Slabs suit a wide range of applications, 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-rated products. Being non-combustible, Rocksilk® Building Slabs come in a range of densities from 45kg/m3 up to 140kg/m3, meeting the needs of many different projects.

Benefits

• One slab type works across multiple applications.
• Factory-applied foil or tissue facing options are available, opening up possibilities for varied project requirements.
• Made from mineral wool, it provides superior sound absorption and noise reduction versus other common insulants.
• Constructed from rock mineral wool with a melting point above 1000°C, delivering extended fire resistance compared to many alternative insulants.

Info

Browse our 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 quantity discount quotation, please call us on +4402038839057, email sales@insulationbee, or use Live Chat for the best UK Knauf Loft Insulation prices.