Celotex CW4050 Cavity Wall Insulation Board 1200mm x 450mm (All Sizes)

The Celotex CW4050 insulation board is a high-performance partial fill solution designed for masonry cavity walls. Constructed from rigid polyisocyanurate (PIR) material, it comes in a 50mm thickness and is pre-sized to fit neatly between cavity wall ties. This versatile insulation is ideal for new constructions, renovations, and extensions alike.

With an impressive thermal conductivity of 0.022 W/mK and a low emissivity aluminium foil facing, the CW4050 achieves excellent U-values, making it one of the most effective insulation options available. This ensures long-term savings and improved energy efficiency in your building.

Features & Benefits:

• High-quality partial fill PIR insulation
• 5.94m² pack coverage
• Quick and hassle-free installation
• Designed for masonry cavity walls
• Low emissivity foil facing for enhanced thermal insulation
• 1200mm (length) x 450mm (width) x 50mm (thickness)
• R-Value of 2.25m²K/W for superior thermal performance
• Compressive strength of CS(10\Y)120 (kPa)
• Lightweight at just 1.92kg/m²

The Celotex CW4050 is sized to match the standard spacing of cavity wall ties, eliminating the need for cutting and simplifying the installation process. Proper installation ensures compliance with national building regulations, helping you meet carbon dioxide emission and energy consumption targets.

Additionally, the CW4050 is BBA (British Board of Agrément) certified and holds a BRE Green Guide Rating of A, reinforcing its commitment to sustainability and enhancing environmental performance.

Standards & Certifications:

• Thermal conductivity: 0.022W/mK, as per BS EN 13165 for factory-made rigid polyurethane foam
• Spread of flame: Euroclass F (BS EN 13501-1), without a smoke emission rating
• Certification: BBA certified
• BRE Green Guide Rating: A for environmental sustainability

https://celotex.co.uk/