Unilin FR/TP Plydeck 44mm Flat Roof Insulation

The Unilin FR/TP Plydeck 44mm is a high-performance composite insulated panel engineered for flat roof applications. It combines a 35mm polyisocyanurate (PIR) core with a composite foil face, bonded to a 9mm OSB board substrate. This integrated design delivers superior thermal insulation and structural decking capability in one installation, making it particularly suited to new-build and refurbishment flat roof projects.

Product Specification

Brand: Unilin / Xtratherm®

Model: 44mm OSB

Thickness: 35mm PIR Insulation + 9mm OSB board - 44mm overall

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 44mm

Board Coverage: 2.88m2

Weight: 26.00kg

Compressive Strength: 150 kPa

R-Value: 1.6 m2K/W

Thermal Conductivity: 0.022 W/mk

Density: 32 Kg/m3

Material: Polyisocyanurate PIR ǀ OSB

Vapour Resistivity: 100 MNs/gm

Finish: Aluminium foil face ǀ OSB reverse face

Applications: Flat Roof ǀ Hot Bitumen ǀ Decking

Features: Highly-durable three-in-one solution

Key Benefits:

1. Outstanding thermal performance through PIR rigid insulation
2. Low thermal conductivity rating of 0.022W/mK
3. Combined insulation and structural decking in a single layer
4. Compatible with multiple waterproofing membrane systems
5. Manufactured from non-hazardous materials
6. CFC/HCFC-free production process
7. Zero ozone depletion potential (ODP) with minimal global warming potential (GWP)
8. Suitable for both new construction and renovation applications

Technical Characteristics:

1. Gas-tight foil membrane: The upper surface features a sealed foil membrane, providing an effective moisture barrier.
2. Continuous vapour control layer: When installed on a mastic bed, the panel establishes a continuous vapour control layer for effective moisture management.
3. Water-resistant properties: The board resists water absorption, making it ideal for moisture-prone environments.
4. Minimal thermal conductivity: The insulation core achieves excellent performance at reduced thickness without sacrificing efficiency.
5. Fast installation and coverage: The composite structure allows rapid deployment and straightforward fitting on site.
6. Improved thermal performance: Additional Unilin insulation layers can be installed between joists or above them to enhance overall roof insulation performance.
7. Long-term durability: The board is engineered to perform throughout the building's service life, delivering consistent results.
8. Lightweight and strong: The material combines ease of handling with structural integrity, and can be cut with standard saws or sharp blades for site adjustments.

Roof Design

Consideration should be given to the recommendations of BS 4841: Part 3 and the certification of the chosen membrane manufacturer.

Falls

The fall on a flat roof should be constant and steep enough to ensure that rainfall does not pond.

Info

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