220mm Rockwool Rainscreen Duo Slab

Introducing 220mm Rockwool Rainscreen Duo Slab Cladding Insulation, a specialist stone wool solution engineered for ventilated cladding systems and sealed applications including curtain walling. Featuring Dual Density technology, this 220mm rainscreen slab provides a robust outer surface for secure fixings, combined with a flexible inner layer that adapts to uneven substrates.

Upon installation, the reinforced outer surface and factory-applied water repellent coating deliver enhanced protection against rain penetration during the construction phase. This adaptable 220mm Rainscreen Duo Slab readily accommodates brackets and complex architectural details, whilst adjacent slabs lock together when positioned closely, creating a unified insulation barrier that reduces thermal bridging through gaps.

Product specification

• Model: 220mm Rockwool Rainscreen Duo Slab
• Thickness: 220mm
• Width: 1200mm
• Length: 600mm
• Board Coverage: 0.72m2
• Pack Coverage: 1.44m2
• Pack Quantity: 2
• Pallet Quantity: 12
• Density: 60kg/m3
• Weight/m2: 3kg
• Thermal conductivity: 0.034 W/mK (< 90mm) / 0.035 W/mK (≥90mm)R-Value: 1.43m2K/W
• Fire Rating (Reaction to Fire): A1(Non-combustible)
• Compliance: BS EN 13162, ISO 14001
• Water vapour resistance: 5.9 MNs/gm
• Insulation Material: Stone wool insulation
• Manufacturer: Rockwool Rainscreen
• Applications: Acoustic, External Wall Insulation, Rainscreen Board, Wall

Key Features

1. BBA approval confirms product quality and dependability.
2. Non-combustible Euroclass A1 rating provides superior fire safety.
3. Independently verified acoustic performance delivers effective sound insulation.
4. Water resistant yet vapour permeable, safeguarding structural longevity.
5. 220mm Stone wool insulation maintains dimensional stability throughout 55+ years of service.
6. Sustainable choice: fully recyclable and reprocessable, minimising waste, with zero ODP (Ozone Depletion Potential) and GWP (Global Warming Potential).
7. 220mm Rainscreen Insulation

Fire-safe insulation engineered for facade applications

220mm Rockwool Duo Slab is a BBA-approved insulation product that delivers thermal performance alongside independently tested acoustic advantages.

APPLICATIONS

220mm RainScreen Duo Slab works effectively with the following building configurations:

• Steel frame, timber frame or masonry walls paired with a cladding system;
• Steel frame or timber frame construction with a masonry outer leaf

Additional Benefits of 220mm Rockwool Rainscreen Duo Slab

• Water Repellent and Breathable: The 220mm Rainscreen Duo Slab combines water repellency with vapour permeability, protecting building performance.
• Independently Tested Acoustic Benefits: Laboratory testing demonstrates the 220mm Rainscreen Duo Slab significantly reduces airborne sound transmission, achieving results up to Rw 62 dB in typical installations.
• Environmentally Friendly: 220mm ROCKWOOL insulation contains no substances with ozone depletion potential (ODP) or global warming potential (GWP), supporting environmental responsibility.
• Improved Resistance to Rain Ingress: The higher density outer face of the 220mm Rainscreen Duo Slab, combined with factory-applied water-repellent treatment, strengthens protection against rain ingress during construction.

Certification

• Fire Rating: Euroclass A1 non-combustible – the highest fire resistance classification. Tested to EN 13501-1 standards.
• BBA Approved: Certified by the British Board of Agrément (BBA), confirming quality and performance standards.

Additional Offerings

Unable to locate what you need? Contact our team, and we'll source it for your project. Beyond insulation, our range covers all your building material requirements.

More Information on 220mm Rockwool Rainscreen Duo Slab

• Manufacturer Link: Rockwool Duo Slab
• Rockwool 220mm Rainscreen Duo Slab delivers high-performance insulation with broad application flexibility.
• Browse our complete Rockwool Insulation range and refine by thickness or coverage using the left-hand filters. For product suitability advice or bulk quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat – Competitive UK Rockwool Stone Wool Insulation Pricing.