50mm Rockwool NyRock Cavity Slab 032

50mm 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, renovation projects, and extensions, these lightweight slabs offer straightforward installation and deliver a snug fit against blockwork surfaces.

Built using advanced patented technology, 50mm NyRock Cavity Slab 032 incorporates an enhanced fibre structure that maximises air pocket density throughout the slab. This breakthrough delivers outstanding thermal performance that surpasses standard stone wool alternatives.

Key features include

1. Outstanding thermal conductivity of 0.032 W/mK.
2. Withstands temperatures above 1,000ºC, achieving the highest Euroclass A1 non-combustibility classification per EN13501-1.
3. Standard 455mm width aligns with typical vertical wall tie spacing, creating tight, uniform joints between adjacent slabs.

Product specification

• Brand: NyRock
• Product Type: Rockwool NyRock Cavity Slab 032
• Thickness: 50mm
• Size of slab: 455mm x 1200mm
• Pack quantity: 8 Slabs per pack
• Pallet Quantity: 15 packs / Pallet
• Pack Coverage: 4.37 m2
• Pallet Coverage: 65.52 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: 50mm Rockwool NyRock Cavity Slab 32 delivers high-performance stone wool insulation specifically engineered for masonry cavity wall constructions. It provides exceptional thermal insulation, boosting energy efficiency and reducing heat loss through external walls.

With its Euroclass A1 non-combustible fire rating, 50mm NyRock Cavity Slab 32 substantially enhances building fire safety, making it perfect for residential, commercial, and high-risk environments. Its moisture-resistant and water-repellent properties guard against water penetration whilst maintaining cavity breathability.

Simple to install and lightweight, the slabs lock securely between wall ties, delivering continuous insulation coverage that boosts comfort, safety, and energy performance throughout the building.

Thermal performance

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

Fire performance

NyRock Cavity Slab 032 is non-combustible achieving a reaction to fire classification of A1, as defined in EN13501-1. NyRock Cavity Slab 032 is suitable for use in building of every purpose group, also acting as an effective cavity barrier when tightly fitted between masonry leaves where an insulated wall connects with an uninsulated wall cavity.

Acoustic performance

The non-directional fibre orientation and density of stone wool means that sound waves are trapped, and vibrations dampened which can significantly reduce outside sources of noise when used in an external wall.

50mm Rockwool insulation maintains its shape and thickness throughout the building's lifespan, delivering consistent acoustic performance year after year.

Info

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