Description
Rockwool Cavity Slab Insulation
Rockwool Cavity Slab insulation is a high-performance stone wool insulation designed for use in full and partial fill masonry cavity walls. Offering excellent thermal efficiency, outstanding fire resistance and superb acoustic performance, it helps create warmer, quieter and more energy-efficient buildings.
Manufactured from sustainable volcanic rock, Rockwool cavity slabs are water repellent while remaining vapour permeable, allowing walls to breathe and helping to reduce the risk of condensation. The rigid slabs are easy to install, fit tightly between wall ties and maintain their shape over time for long-lasting performance.
Suitable for new build homes, extensions and commercial projects, Rockwool cavity slabs are trusted by builders and developers for their durability, fire safety and excellent insulation properties.
Key Features
Excellent thermal insulation performance
Outstanding fire resistance (Euroclass A1 non-combustible)
Reduces heat loss and improves energy efficiency
Excellent acoustic insulation to reduce external noise
Water repellent while remaining vapour permeable
Easy to install and retains its shape
Suitable for full and partial fill cavity wall applications




