51mm Unilin FR/TP Flat Roof Insulation Board

The 51mm Unilin FR/TP is a composite insulation board that merges a Polyisocyanurate core with a foil-faced composite layer, firmly adhered to 6mm WBP-grade plywood. This engineered product delivers both superior thermal insulation performance and structural decking capability, making it particularly suited for new-build and flat roof upgrade projects.

The 51mm Unilin FR/TP was previously known as 51mm Xtratherm FR/TP.

Product Specification

Brand: Unilin ®

Model: 51mm FR/TP

Dimensions: 2,400mm x 1,200mm x 51mm

Thickness: 45mm PIR + 6mm Plywood (51mm overall)

Length: 2400mm

Width: 1200mm

Weight: 26.92kg

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: 2.05m2K/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 in a single product installation
2. Appropriate for both new construction and existing roof refurbishment applications
3. Delivers rapid weatherproofing capability
4. Environmental Product Declaration (EPD) certification available through IGBC for this insulation solution
5. Single-fix insulation and decking system
6. Suitable for new and refurbishment roof projects
7. Rapid weather protection

Roof Design

Reference should be made to the guidance in BS 4841: Part 3 and the specific requirements of your selected membrane manufacturer.

Falls

Flat roofs require a consistent fall gradient that is sufficient to prevent water pooling and ensure effective drainage.

Info

Browse our Unilin stock and refine your search by thickness or coverage area using the filters on the left. To discuss product suitability for your specific application or request a bulk discount quotation, please contact us on +4402038839057, email sales@insulationbee, or use our Live Chat service for the best UK Insulation prices.