What is Full-Fill Cavity Insulation?

Definition

Full-fill cavity insulation fills the gap between the inner and outer leaves of a wall using rigid PIR boards. This method maximises thermal performance and improves energy efficiency.

Benefits

• Maximum Thermal Performance: Achieves lower U-values compared to partial-fill systems.
  
• Condensation Resistance: Reduces moisture risk by filling the cavity entirely.
  
• Versatile: Suitable for both new-build and retrofit projects, depending on cavity width.
  

Applications

• ECO/CT boards are designed explicitly for full-fill applications.
  
• Works in conjunction with dry lining and internal plasterboards.
  
• Applicable in residential houses, commercial buildings, and multi-storey constructions.
  

Best Practice Tips

• Ensure boards are cut precisely to cavity width to avoid gaps.
  
• Pair with VCL where internal moisture is high.
  
• Confirm building regulations compliance for U-value targets.