RECTICEL EUROWALL + 90mm x1200x460 TONGUE AND GROOVE 4 SIDES 100% PEFC Certified

The RECTICEL EUROWALL+ 90 mm x 1200 x 460 PIR Insulation Board is a premium, high-performance full fill cavity wall insulation board designed for masonry walls where low U-values and Part L compliance are required. With an excellent lambda value of 0.022 W/mK, it delivers outstanding thermal efficiency within a standard 100 mm cavity, without the need to widen walls or lose internal floor space.

Manufactured from rigid polyisocyanurate (PIR) foam with multi-layer foil facings, EUROWALL+ features precision-cut tongue and groove joints on all four sides. The boards interlock tightly to reduce thermal bridging, improve airtightness and help protect against wind-driven rain. Designed with a 10 mm residual cavity, it allows bricklayers to use conventional techniques and standard wall ties. The product is 100% PEFC certified (CU-PEFC-867959), supporting responsible and sustainable construction.

Key Features

• Premium full fill PIR cavity wall insulation
• Lambda value: 0.022 W/mK
• 90 mm thickness designed for 100 mm cavities
• Tongue and groove on all four sides for tight, interlocking joints
• Multi-layer foil facings on both sides
• BBA certified for masonry cavity walls
• 100% PEFC certified (CU-PEFC-867959)

Typical Applications

• Full fill masonry cavity walls
• New-build housing developments
• Extensions
• Residential and commercial construction

Performance & Workability

• Can help achieve a U-value of 0.18 W/m²K in a 100 mm cavity, depending on the full wall build-up
• Supports Building Regulations Part L compliance
• Tongue and groove joints reduce thermal bridging and air leakage
• Helps protect against wind-driven rain
• 10 mm residual cavity allows conventional bricklaying
• Secured with retaining clips fitted to standard wall ties

Technical Specification

• Product Type: PIR Full Fill Cavity Wall Insulation Board
• Product Range: EUROWALL+
• Manufacturer: Recticel Insulation
• Material: Polyisocyanurate (PIR)
• Thickness: 90 mm
• Thermal Conductivity (Lambda): 0.022 W/mK
• Board Size: 1200 x 460 mm
• Edge Profile: Tongue and groove, 4 sides
• Suitable Cavity Width: 100 mm
• Certification: BBA, 100% PEFC Certified (CU-PEFC-867959)
• Application: Full fill masonry cavity walls

Why Choose RECTICEL EUROWALL+ 90 mm?

The RECTICEL EUROWALL+ 90 mm Full Fill Cavity Insulation Board is an ideal solution for achieving low U-values and Part L compliance without increasing cavity width. Its 0.022 W/mK lambda value, four-sided tongue and groove joints and PEFC certification make it a reliable, sustainable and high-performing choice for modern energy-efficient masonry construction.