NyRock® Cavity Slab 032
NyRock® Cavity Slab 032 is a BBA-approved non-combustible full and partial fill stone wool slab for the thermal insulation of masonry cavity walls.
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Application(s)
- External Wall
- Internal Wall
- Cavity Wall
- Separating Walls
Product description
NyRock Cavity Slab 032 is manufactured from stone wool using patented technology that creates a more efficient fibre structure. This structure increases the density of air pockets trapped within each slab resulting in improved thermal performance when compared to comparable stone wool products like the standard ROCKWOOL Full Fill Cavity Batt.
The lightweight slabs can be friction fitted, which helps to minimise gaps during installation and accurately fit against the blockwork without the need for precise cutting.
- Euroclass A1 in accordance with BS EN 13501-1 Reaction to Fire rating
- Thermal conductivity 0.032 W/mK
- BBA approved (Certificate No. 22/6252)
Areas of application
Applications for NyRock Cavity Slab 032 are:
- Masonry cavity walls
Documentation

NyRock Cavity Slab 032 Datasheet
NyRock® Cavity Slab 032 is a BBA-approved non-combustible full and partial fill stone wool slab for the thermal insulation of masonry cavity walls.

Nyrock Cavity Slab 032 BBA Certificate
Certificate No. BBA-22-6252-Full Fill Cavity Wall Insulation

Nyrock Cavity Slab 032 BBA Certificate
Certificate No. BBA-22-6252-Partial Fill Cavity Wall Insulation

Nyrock Cavity Slab 032 Installation Guide
Installation guidelines for ROCKWOOL NyRock Cavity Slab 032

SUIS ROCKWOOL UK
Safe use instruction sheet ROCKWOOL stone wool insulation products

Republic of Ireland Price List
Price List March 2025

UK Price List
Price List March 2025
Product properties
Name | Value | Test standard | Symbol |
---|---|---|---|
Declared thermal conductivity | 0.032 | EN 826 | λD |
Reaction to Fire | A1 | EN 13501-1 | |
Long term water absorption | WL(P) | EN 12087 | WL(P) |
Short term water absorption | WS | EN 1609 | WS |
Product standard | EN 13162:2012+A1:2015 | ||
CE certificate number | 0751-CPR-393.0-01 | ||
Declaration of Performance (DoP) number | RWUK-UKCA-0255 | ||
BBA certificate number | 22/6252 |
Product variants
Energy Efficient and Non-Combustible Homes: Hallwell Development
With ROCKWOOL NyRock Cavity Slab 032, homes in the Hallwell development met the required energy targets, in addition to providing fire performance.
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