71mm Unilin FR/TP Flat Roof Insulation Board

The 71mm Unilin FR/TP is a composite insulation board engineered for flat roof applications, featuring a 65mm polyisocyanurate (PIR) core bonded to 6mm WBP-grade plywood decking. This integrated system delivers both thermal performance and structural support in a single installation, eliminating the need for separate insulation and decking layers. The foil-faced PIR core provides exceptional thermal resistance, whilst the plywood base offers immediate weatherproofing and load-bearing capacity for new builds and refurbishment projects alike.

The 71mm Unilin FR/TP was previously known as 71mm Xtratherm FR/TP.

Product Specification

Brand: Unilin ®

Model: 71mm FR/TP

Dimensions: 2,400mm x 1,200mm x 71mm

Thickness: 65mm PIR + 6mm Plywood (71mm overall)

Length: 2400mm

Width: 1200mm

Weight: 28.52kg

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: 2.94m²K/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. Integrates thermal insulation and structural decking into a single product
2. Appropriate for both new construction and roof refurbishment applications
3. Delivers rapid weatherproofing capabilities
4. Environmental Product Declaration (EPD) certified by IGBC
5. Single-fix installation combining insulation and decking
6. Suitable for new and refurbishment roof projects
7. Accelerated weather protection

Roof Design

Refer to BS 4841: Part 3 recommendations and the specific certification requirements of your chosen membrane manufacturer.

Falls

Flat roofs must incorporate consistent fall gradients to prevent water pooling and ensure proper drainage.

Info

Browse our complete range of Unilin insulation products and refine your selection by thickness or coverage using the filters on the left. For technical advice on product suitability, quantity discounts, or custom quotations, contact us on +4402038839057, email sales@insulationbee, or use our Live Chat service for competitive UK Insulation pricing.