85mm Rockwool NyRock Cavity Slab 032

85mm Rockwool NyRock Cavity Slab 032 is a stone wool insulation slab engineered for both full-fill and partial-fill thermal insulation applications in masonry cavity walls.

Perfect for new builds, refurbishments, and building extensions, these lightweight slabs deliver straightforward installation with exceptional handling characteristics and guarantee a snug fit against blockwork surfaces.

Engineered using cutting-edge patented technology, 85mm NyRock Cavity Slab 032 incorporates an optimised fibre structure that maximises air pocket density throughout the material. This breakthrough delivers outstanding thermal performance that surpasses standard stone wool alternatives.

Key features include

1. Outstanding thermal conductivity rating of 0.032 W/mK.
2. Withstands temperatures in excess of 1,000ºC, achieving the premium Euroclass A1 non-combustibility classification per EN13501-1.
3. Standard 455mm width aligns with conventional vertical wall tie spacing, delivering flush, continuous joints between adjacent slabs.

Product specification

• Brand: NyRock
• Product Type: Rockwool NyRock Cavity Slab 032
• Thickness: 85mm
• Size of slab: 455mm x 1200mm
• Pack quantity: 4 Slabs per pack
• Pallet Quantity: 15 packs / Pallet
• Pack Coverage: 2.18 m2
• Pallet Coverage: 32.76 m2
• Insulation Application: Acoustic, External Wall, Wall
• Product Type: Insulation
• Reaction to fire (Euroclass): Euroclass A1
• Thermal conductivity: 0.032 W/mK
• Water vapour resistance: 5.9MNs/gm
• GWP: Zero
• ODP: Zero
• Materials: Stone wool
• Commercial Or Domestic Use: Both
• Application: Exterior
• Applicable Standards: CE & UK CA Marked
• Thermal Conductivity: 0.032 W/mK

Applications

Suitable for partial fill insulation applications only: 50mm, 75mm and 85mm. Suitable for full and partial fill applications: 100mm, 125mm, 150mm, 160mm and 200mm.

Cavity Walls: 85mm Rockwool NyRock Cavity Slab 32 represents premium stone wool insulation specifically engineered for masonry cavity wall systems. It delivers superior thermal insulation, substantially boosting energy efficiency and reducing unwanted heat transfer through external walls.

Featuring a Euroclass A1 non-combustible fire rating, 85mm NyRock Cavity Slab 32 significantly strengthens building fire protection, making it excellent for residential, commercial, and demanding applications. Its moisture-resistant and water-repellent characteristics guard against water penetration whilst maintaining cavity breathability.

Lightweight and straightforward to fit, the slabs lock securely between wall ties, providing complete insulation coverage that improves building comfort, safety, and thermal performance.

Thermal performance

Thermal conductivity value of 0.032 W/mK compliant with BS EN 13162:2012 +A1:2015.

Fire performance

NyRock Cavity Slab 032 is non-combustible with a reaction to fire classification of A1 under EN13501-1. NyRock Cavity Slab 032 is appropriate for buildings of all purpose groups, functioning as an effective cavity barrier when tightly positioned between masonry leaves where an insulated wall connects to an uninsulated cavity.

Acoustic performance

The random fibre orientation and material density of stone wool effectively trap sound waves and dampen vibrations, which can substantially minimise external noise transmission when installed in external walls.

85mm Rockwool insulation maintains its form and thickness throughout the building's lifespan, delivering consistent acoustic performance year after year.

Info

Browse our complete Rockwool Products range and refine by thickness or coverage using the left-hand filters. For guidance on product suitability for your specific project, or to request a volume discount quotation, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Competitive UK Rockwool Insulation Pricing.