41mm Unilin FR/TP Thermal Ply Flat Roof Insulation

41mm Unilin FR/TP is a composite insulation board featuring a Polyisocyanurate core bonded to 6mm WBP grade plywood with foil facings. This integrated system delivers both thermal insulation and structural decking performance, making it particularly suited to new-build and refurbished flat roof applications.

The 41mm Unilin FR/TP was previously known as 41mm Xtratherm FR/TP.

Product Specification

Brand: Unilin ®

Model: 41mm FR/TP

Dimensions: 2,400mm x 1,200mm x 41mm

Thickness: 35mm PIR + 6mm Plywood (41mm overall)

Length: 2400mm

Width: 1200mm

Weight: 25.97kg

Compressive Strength: 150 kPa (10% Compression)

Density: 32 Kg/m3

Type: Thermal Ply High Performance PIR Insulation and Plywood Composite for Flat Roofs

Material: Polyisocyanurate core ǀ Plywood

Profile: Square Edge

Thermal Conductivity: 0.022W/mK

R-Value: 1.59m2K/W

Vapour Resistivity: 100 MNs/gm

Type of finishing board: 6mm WBP plywood

Inner facing: Foil Facer

Outer facing: Foil Facer

Finish: Gas-tight foil ǀ WBP Plywood

Shipping method: Articulated Vehicle ǀ Courier

Applications: Flat Roof Insulation ǀ Hot Bitumen ǀ Decking

Features: Rapid Weather Proofing ǀ 3 in 1 Solution

Key Benefits:

1. Merges insulation and structural decking into a unified product
2. Applicable to both new construction and existing roof upgrade schemes
3. Enables swift weatherproofing installation
4. Environmental Product Declaration (EPD) certified by IGBC
5. Single-fix solution combining insulation and decking
6. Suitable for new and refurbishment roof projects
7. Delivers rapid weather protection

Roof Design

Refer to BS 4841: Part 3 recommendations and the specific guidance provided by your selected membrane manufacturer.

Falls

Flat roofs require consistent falls that are sufficiently steep to prevent water pooling and drainage issues.

Info

Explore our comprehensive Unilin range and refine your selection by thickness or coverage area using the filters on the left. For technical advice on product suitability or bulk quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for competitive UK Insulation pricing.