Celotex CW4075 Cavity Wall Insulation Board 1200mm x 450mm (All Sizes)

The Celotex CW4075 PIR insulation is a high-performance solution designed for partial fill masonry cavity walls. Crafted from rigid polyisocyanurate (PIR) foam, it is available in a 75mm thickness and is perfectly sized to fit between cavity wall ties. This versatile insulation is ideal for both new constructions and renovations, including extensions.

With an exceptional thermal conductivity of just 0.022 W/mK, the CW4075 insulation board features a low-emissivity aluminium foil facing that enhances its thermal performance. This makes it one of the top-performing insulation materials, offering long-term energy savings.

Key Features & Benefits:

• 4.32m² coverage per pack
• Dimensions: 1200mm (length) x 450mm (width) x 75mm (thickness)
• High-efficiency partial fill PIR insulation
• Easy and quick installation
• Perfect for masonry cavity wall applications
• Low emissivity foil facing for improved thermal insulation
• 3.40m²K/W R-value for excellent energy efficiency
• Lightweight at just 2.78kg/m²
• Strong compressive strength of CS(10\Y)120 (kPa)

The CW4075 insulation board is pre-sized to fit standard wall tie spacings, meaning minimal cutting and hassle during installation. Once in place, it helps achieve compliance with national building regulations regarding carbon emissions and energy use.

Further enhancing its environmental credentials, this insulation comes with a BBA (British Board of Agrément) certification and a BRE Green Guide Rating of A, making it an environmentally-friendly choice for any building project.

Certifications & Standards:

• BBA certified
• BRE Green Guide Rating: A
• Thermal conductivity: 0.022W/mK (as per BS EN 13165 for rigid polyurethane foam)
• Spread of flame: Euroclass F (BS EN 13501-1); does not carry a rating for smoke emission.

https://celotex.co.uk/products