These products form part of our wider ceiling insulation range, designed to improve energy efficiency and acoustic performance across all building types.
Cavity wall insulation batts provide reliable thermal, fire, and acoustic performance for new build and refurbishment projects. Designed to fit tightly between masonry leaves, cavity batts help reduce heat loss, limit noise transfer, and improve the fire safety of your building.
At Judge Ceilings we stock a wide range of cavity batts from leading brands such as
Rockwool.
These stone wool insulation products are available in multiple thicknesses and pack sizes to suit different wall constructions. With excellent dimensional stability, cavity batts maintain their shape and performance for the lifetime of the building.
✔ Improve Thermal, Fire & Acoustic Performance
High-performance cavity insulation designed for long-term building efficiency and compliance.
Common Applications
Cavity batts are widely used in:
Thermal Performance
Cavity wall batts typically achieve thermal conductivity values around 0.037 W/mK, helping reduce heat loss through external walls and contributing to compliance with Part L of the Building Regulations.
Fire Safety
Manufactured from non-combustible stone wool, most cavity batts achieve a Euroclass A1 fire rating. This ensures they not only insulate but also act as an effective cavity barrier, slowing down the spread of flames and smoke between building compartments.
Acoustic Performance
The dense, non-directional fibre structure of stone wool cavity batts helps reduce external noise transmission, improving comfort in homes, schools, offices, and multi-residential buildings.
Why Choose Cavity Batts?
- Thermal conductivity around 0.037 W/mK
- Euroclass A1 non-combustible fire rating
- BBA certified for use in a range of building types
- Available in multiple thicknesses for different wall cavities
- Long-term stability – retains shape and performance
Related Insulation Types
Related Categories
Cavity Batts for wall insulation? It pays to trust the Judge.
Frequently Asked Questions
What are cavity wall batts?
Cavity wall batts are stone wool insulation panels designed to fit tightly between masonry walls to improve thermal, acoustic, and fire performance.
What is the thermal performance?
Most cavity batts achieve around 0.037 W/mK, helping reduce heat loss and improve energy efficiency.
Are cavity batts fire rated?
Yes, most are Euroclass A1 non-combustible, meaning they do not contribute to fire spread.
Do cavity batts reduce noise?
Yes, their dense fibre structure helps reduce external noise and sound transmission.
