90mm Soprema Thermaclass Cavity Wall PIR

The 90mm Soprema Thermaclass Cavity Wall 21 is a premium polyisocyanurate (PIR) insulation board engineered for complete-fill masonry cavity wall installations. With a thermal conductivity rating of 0.021 W/m.K, this high-performance board delivers outstanding thermal efficiency whilst maintaining structural integrity. The low emissivity foil facing enhances thermal performance in sealed cavity spaces, and the product accommodates either a 10mm residual cavity for installation flexibility or full-fill deployment with no residual cavity.

Product specification

• Model: 90mm Soprema Thermaclass Cavity Wall 21
• Thickness: 90mm
• Width: 450mm
• Length: 1190mm
• Pack Quantity: 6
• Board Coverage: 0.54m2
• Pack Coverage: 3.24m2
• Weight/m2: 2.8kg
• Weight: 9.07kg
• Thermal Conductivity: 0.021W/mK
• R-Value: 4.25m2K/W
• Fire Rating (Reaction to Fire): E
• Applications: Walls - External Wall Insulation - Full Fill Masonry Cavity Walls

Product Features

• Lightweight 1190 x 450mm boards (installed dimensions)
• Tongue and groove edge profile
• Low emissivity foil facing
• BBA approved – certificate 16/5343 (Full Fill Cavity Walls )

Product Benefits

• Superior Thermal Performance: Achieves outstanding thermal efficiency with a conductivity of 0.021 W/m.K, reducing the insulation depth required to meet your target U-value performance.
• Advanced Low Emissivity Facer: The 90mm Thermaclass Full Fill insulation Board incorporates a low emissivity foil facing that maximises thermal performance within sealed cavity air spaces, boosting the overall U-value performance when a 10mm residual cavity is maintained.
• Simple Installation: Engineered to align with standard cavity wall tie spacing, these lightweight and rigid boards are straightforward to transport, position, and secure in place.
• BBA Certified: The 90mm full-fill Thermaclass Cavity Wall 21 holds BBA certification, validating its performance for specified full-fill cavity wall applications when installed, used, and maintained in accordance with the certificate requirements. Consult the BBA certification documentation for full details and any applicable restrictions.

Key Considerations

When installing Soprema 90mm Thermaclass Cavity Wall 21, verify that the product meets all relevant national Building Regulations and guidelines, plus any local, national, and other applicable standards for your specific construction or application. This encompasses compliance with fire safety regulations and any applicable height restrictions.

External Wall Insulation - Full Fill Masonry Cavity Walls

90mm Full fill masonry cavity PIR insulation systems work by placing insulation within the cavity between two masonry layers, delivering consistent thermal protection throughout the building envelope. This approach significantly boosts energy efficiency, cuts heat loss, and elevates indoor comfort levels. Premium insulation materials, including 90mm polyisocyanurate PIR boards with low emissivity facings, guarantee excellent thermal performance. 90mm Soprema Thermaclass full-fill solutions streamline the installation process and optimise insulation effectiveness, creating a more energy-efficient and economical building envelope.

• Browse our Soprema insulation range and refine by thickness or coverage using the filters on the left. For product suitability advice on your specific project or to request a bulk discount quotation, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Competitive UK Soprema Insulation Pricing.