Celotex Thermaclass 21 is a high-performance cavity wall insulation solution, supplied in convenient packs for ease of handling and installation.

Product Features:

• Product Type: Designed specifically for cavity wall applications.
• Material: Manufactured from Polyisocyanurate for thermal efficiency.
• Dimensions: Each board measures 1190mm in length, 450mm in width and 115mm in thickness.
• Series: Part of the Thermaclass series, ensuring quality and performance.

The pack contains 5 white insulation boards, providing a coverage of 2.67m2, suitable for various cavity wall projects.