125mm Rockwool NyRock Rainscreen 032

125mm Rockwool NyRock Rainscreen 032 is a premium stone wool insulation product engineered for ventilated cladding systems and sealed curtain wall applications.

Developed using proprietary technology, this 125mm slab incorporates an optimised fibre matrix that maximises air pocket density, delivering exceptional thermal efficiency beyond standard stone wool insulation alternatives.

Installation benefits from its high-density structure and factory-applied hydrophobic treatment, which provides excellent rain resistance during the construction phase. The product installs effortlessly around brackets and architectural details, with boards locking together tightly to create a continuous thermal barrier that eliminates thermal bridging through gaps.

Product specification

• Thickness: 125mm
• Width: 600mm
• Length: 1200mm
• Pack Quantity: 3
• Pallet Quantity: 12
• Board Coverage: 0.72m2
• Pack Coverage: 2.16m2
• Pallet Coverage: 25.92m2
• Thermal Conductivity: 0.032W/mK
• Fire Rating (Reaction to Fire): A1(Non-combustible)
• Insulation Application: Acoustic, External Wall, Rainscreen Board, Wall
• Insulation Brand: Rockwool
• Insulation Material: Glass / Mineral Wool
• Product Type: Insulation
• Rockwool Ranges: Rockwool NyRock Rainscreen 032
• CE certificate number: 0086 CPR 461281
• Declaration of performance: RWUK-UKCA-0259-01

For maximum thermal efficiency in timber or steel-framed buildings, pair this rainscreen slab with NyRock Frame Slab 032.

1. Ultra-low thermal conductivity rated at 0.032 W/mK
2. BBA certified product
3. Non-combustible Euroclass A1 rated
4. Independently verified acoustic performance
5. Water-resistant with breathable properties
6. Stone wool delivers consistent performance for over 55 years post-installation*
7. Fully recyclable with zero ODP and GWP impact

Premium low-lambda non-combustible insulation for facade systems. This 125mm NyRock RainScreen Slab 032 utilises proprietary NyRock technology to achieve outstanding low lambda values. Beyond thermal performance, the product delivers independently-tested acoustic benefits for enhanced comfort.

Applications

NyRock 125mm RainScreen 032 performs excellently on: • Steel frame, timber frame or masonry walls paired with cladding systems; • Steel frame or timber frame construction with external masonry cladding

Cladding systems

This 125mm Rockwool NyRock Rainscreen Slab is a high-performance stone wool insulation choice for ventilated façade and rainscreen cladding applications. It delivers outstanding thermal insulation, significantly improving building energy efficiency. Featuring Euroclass A1 non-combustible certification, it provides superior fire protection suitable for high-rise and sensitive-use buildings. Its moisture-resistant, vapour-permeable composition protects the building envelope, preventing water ingress whilst allowing structures to breathe naturally. Installation is straightforward, making this slab an excellent choice for safety, thermal comfort, and structural longevity in contemporary construction projects.

Info

Browse our extensive Rockwool product range and refine by thickness or coverage using the left-hand filters. For project-specific advice or bulk quotations, contact our team on +4402038839057, email sales@insulationbee or use Live Chat - Competitive UK Rockwool Insulation Pricing.