Kingspan Kooltherm K108 Cavity Insulation board

Kingspan Kooltherm K108 Cavity Insulation Board is a high-performance rigid thermoset phenolic board faced on both sides with low emissivity composite foil. Engineered for partial-fill cavity walls, it delivers outstanding thermal conductivity of 0.019 W/mK, reducing heat loss and maximising internal floor space. Lightweight, durable, and moisture-resistant, it ensures long-term energy efficiency and helps achieve building regulation standards in residential and commercial constructions.

Installation Guide:

• Ensure the wall cavity is clean, dry, and free from mortar snots
• Position insulation boards against the inner leaf with joints tightly butted
• Stagger vertical joints and secure with appropriate wall ties or retaining clips
• Maintain a clear residual cavity between insulation and outer leaf
• Seal gaps around openings and junctions to prevent thermal bridging
• Continue with outer wall construction, ensuring alignment and drainage cavity integrity