59mm Unilin FR/TP Plydeck Flat Roof Insulation Board

59mm Unilin FR/TP Plydeck Thermal OSB is a composite insulated panel that merges Polyisocyanurate (PIR) core technology with a composite foil face, securely bonded to 9mm OSB Board. This engineered solution delivers superior thermal insulation and decking functionality as one integrated product, making it well-suited for new construction and flat roof renovation work.

Product Specification

Brand: Unilin / Xtratherm®

Model: 59mm OSB

Thickness: 50mm PIR Insulation + 9mm OSB board - 59mm overall

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 59mm

Board Coverage: 2.88m2

Weight: 27.57kg

Compressive Strength: 150 kPa

R-Value: 2.28 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

Important Features:

1. Outstanding thermal performance in PIR Rigid Insulation
2. Thermal conductivity rating of 0.022W/mK
3. Combines insulation and decking functionality in a single installation step
4. Works effectively with numerous waterproofing system types
5. Manufactured from non-hazardous materials
6. Produced without CFCs or HCFCs
7. Zero ozone depletion potential (ODP) and minimal global warming potential (GWP)
8. Appropriate for both new build and refurbishment applications

59mm Unilin Plydeck Key Characteristics:

1. Gas-tight foil membrane: The top surface of Unilin Plydeck features a gas-tight foil membrane, providing a reliable protective barrier.
2. Continuous vapour control layer: When installed with mastic bedding, the panel establishes a continuous vapour control layer for effective moisture management.
3. Water-resistant properties: Unilin Plydeck resists water absorption, making it suitable for applications in moisture-prone areas.
4. Low thermal conductivity: The insulation core achieves low thermal conductivity, enabling thinner board specifications without sacrificing thermal efficiency.
5. Fast installation and coverage: The composite board design facilitates rapid installation and broad coverage capability.
6. Improved thermal performance: For enhanced roof insulation, additional Unilin layers can be installed between joists or positioned over joists to optimise material usage.
7. Extended durability: Unilin Plydeck is engineered to perform throughout the building's service life, delivering consistent long-term reliability.
8. Lightweight and sturdy construction: The material combines low weight with structural strength, facilitating easy handling during installation and allowing for cutting with standard saws or sharp blades.

Roof Design

Refer to BS 4841: Part 3 recommendations and the specific membrane manufacturer's certification guidance when planning roof specifications.

Falls

Flat roof designs require consistent and adequate fall gradients to prevent water pooling and ensure proper drainage.

Info

Explore our comprehensive Unilin range and refine your selection by thickness or coverage area using the filters on the left side. For product suitability advice tailored to your project requirements or to request a volume-based quotation, contact us by telephone on +4402038839057, email sales@insulationbee.co.uk or use our Live Chat service - Competitive UK Insulation Pricing.