40mm Rockwool RWA45 Acoustic Insulation Slab

40mm Rockwool RWA45 Acoustic Insulation Slab delivers outstanding thermal, acoustic, and fire performance for a broad spectrum of construction projects. Crafted from premium resin-bonded stone wool, these 40mm Rockwool RWA45 slabs come in various thicknesses and densities, with optional specialist facings available to suit your specific requirements.

Perfect for general building work, these 40mm RWA45 ROCKWOOL slabs provide reliable acoustic and thermal insulation across partition walls, ceilings, floors, and roofs. The material's versatility makes it straightforward to incorporate into any construction scheme.

Featuring a Euroclass A1 non-combustible rating, the 40mm RWA45 delivers exceptional fire safety. When installed in ceilings, walls, and floors, it helps compartmentalise spaces effectively, slowing fire spread and limiting potential damage.

The RWA45 40mm rockwool insulation slabs feature a Lambda value of 0.035 W/mK and are supplied in three standard thicknesses ranging from 25 to 100mm.

Product specification

• Brand: Rockwool®
• Model: 40mm RWA45
• Thickness: 40mm
• Length: 1200mm
• Width: 600mm
• Dimensions: 1,200mm x 600mm x 40mm
• Board Coverage: 0.72m2
• Pack Coverage: 8.64m2
• Pack Quantity: 12
• R-Value: 0.70m2K/W
• Thermal Conductivity: 0.035W/mK
• Density: 45kg/m3
• Colour: Light brown
• Material: Stone wool
• Profile: Square Edge
• Water repellent: Water Repellent
• Water vapour resistance: Negligable
• Building Regulations: Class '0'
• Fire performance: Euroclass A1 (non-combustible)
• Finish: Unfaced
• Shipping method: Articulated Vehicle ǀ Courier
• Applications: Walls ǀ Ceilings ǀ Floors ǀ Roofs
• Foil faced: No
• ETA Notification: Yes
• Features: Fire protection ǀ Acoustic ǀ Thermal
• Manufacturer: Rockwool Prorox SL920®

Made To Order Facings

Black or white tissue facings, as well as aluminium foil options, are available upon request, subject to production feasibility and minimum order requirements. Get in touch with our team at sales@insulationbee.co.uk or ring us on 02038839057 to discuss your made-to-order needs.

Key Features

• Exceptional thermal, acoustic, and rockwool fire insulation capabilities.
• Non-combustible Euroclass A1 specification.
• Simple to handle, cut, and fit.
• Superior fire resistance performance.
• Long-lasting insulation product.
• Sustains excellent performance throughout the building's lifespan.
• Water-repellent properties.
• Guards against moisture accumulation, damp, and decay.
• Highly effective sound insulation with strong noise reduction capabilities.
• Thermal conductivity (λ - lambda value) of 0.035W/mK.
• Contains no CFCs or HCFCs.
• ODP-free.
• GWP-free.

Versatile insulation slabs for a wide range of building applications

40mm Rockwool RWA45 Slabs suit numerous general building applications, delivering acoustic, thermal, and fire protection for walls, ceilings, floors, and roofs. Available in multiple thicknesses and densities from 45 to 140 kg/m3, these 40mm Rockwool slabs can be supplied with black or white tissue facing or foil facing on one or both sides, depending on production compatibility.

Applications

• Ground floors
• Internal floors
• Separating floors
• Pitched roofs at rafter level
• Internal walls
• Partitions
• Steel frame walls
• Timber frame walls

Fire Performance

ROCKWOOL RWA45 40mm Slabs are non-combustible and achieve an A1 reaction to fire classification under EN13501-1 standards.

Acoustic Performance

Stone wool's non-directional fibre structure and density trap sound waves and dampen vibrations effectively. This makes it particularly useful for reducing external noise when used in external walls.

Info

Browse our full Rockwool Insulation range and refine by thickness or coverage using the filters on the left. Need advice on product suitability for your project or a bulk discount quote? Contact us on +4402038839057, email sales@insulationbee.co.uk, or use Live Chat for the best UK Rockwool Stone Wool Insulation prices.