139mm Unilin FR/TP Plydeck Flat Roof PIR Insulation Board

139mm Unilin FR/TP Plydeck Thermal OSB is a composite insulated panel engineered to combine Polyisocyanurate (PIR) core with a composite foil face, securely bonded to 9mm OSB Board. This integrated system delivers superior thermal performance and decking capability as a single product, making it particularly suited for both new construction and flat roof renovation schemes.

Product Specification

Brand: Unilin / Xtratherm®

Model: 139mm OSB

Thickness: 130mm PIR Insulation + 9mm OSB board - 139mm overall

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 139mm

Board Coverage: 2.88m2

Weight: 34.6 kg

Compressive Strength: 150 kPa

R-Value: 5.95m2K/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. Exceptional Performance in PIR Rigid Insulation
2. Thermal Conductivity of 0.022W/mK
3. Provides Insulation and Decking in a Single Installation
4. Compatible with a Wide Range of Waterproofing Systems
5. Composed of Non-deleterious Materials
6. Manufactured Without the Use of CFCs/HCFCs
7. Zero Ozone Depletion Potential (ODP) and Low Global Warming Potential (GWP)
8. Suitable for both New Build and Refurbishment Projects

139mm Unilin Plydeck comes with the following characteristics:

1. Gas-tight foil membrane: The underside of Unilin Plydeck features a gas-tight foil membrane, establishing a dependable protective barrier.
2. Continuous vapour control layer: When the panel is bedded onto a mastic layer, it establishes a continuous vapour control layer that effectively regulates moisture transfer.
3. Water-resistant: Unilin Plydeck resists water absorption, making it well-suited for applications in moisture-prone environments.
4. Low thermal conductivity: The insulation material exhibits low thermal conductivity, permitting reduced board thickness whilst maintaining thermal efficiency.
5. Rapid coverage and straightforward installation: The composite board structure facilitates swift coverage and uncomplicated installation procedures.
6. Enhanced thermal performance: For optimised roof insulation, an additional layer of Unilin can be installed between the joists or to minimise material thickness over structural members.
7. Durability: Unilin Plydeck is engineered to perform throughout the entire service life of the building, guaranteeing sustained performance.
8. Lightweight and robust: The material combines light weight with structural strength, facilitating straightforward handling during construction, and can be cut with a saw or sharp knife for precise modifications.

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

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