89mm Unilin FR/TP Plydeck Flat Roof Insulation

89mm Unilin FR/TP Plydeck Thermal OSB is a composite insulated panel that merges Polyisocyanurate core with a composite foil face, securely bonded to 9mm OSB Board. This integrated design delivers superior thermal insulation and decking performance in one product, making it suitable for new construction and flat roof renovation work.

Product Specification

Brand: Unilin / Xtratherm®

Model: 89mm OSB

Thickness: 80mm PIR Insulation + 9mm OSB board - 89mm overall

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 89mm

Board Coverage: 2.88m2

Weight: 30.50kg

Compressive Strength: 150 kPa

R-Value: 3.65 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 performance in PIR Rigid Insulation
2. Thermal conductivity rating of 0.022W/mK
3. Combines insulation and decking functionality in a single installation
4. Works with multiple waterproofing systems
5. Manufactured from non-deleterious materials
6. Produced without CFCs/HCFCs
7. Zero ozone depletion potential (ODP) and reduced global warming potential (GWP)
8. Suitable for new build and refurbishment applications

89mm Unilin Plydeck comes with the following characteristics:

1. Gas-tight foil membrane: The underside features a gas-tight foil membrane, creating a reliable protective barrier.
2. Continuous vapour control layer: When bedded onto a mastic layer, it establishes a continuous vapour control layer that manages moisture effectively.
3. Water-resistant: Unilin Plydeck resists water absorption, making it ideal for damp conditions.
4. Low thermal conductivity: The insulation core achieves low thermal conductivity, allowing thinner board specifications without sacrificing efficiency.
5. Rapid coverage and straightforward installation: The composite board structure enables fast installation and broad coverage.
6. Enhanced thermal performance: Additional Unilin layers can be installed between joists or over joists to further improve roof insulation performance.
7. Durability: Unilin Plydeck is engineered for the complete service life of the building, delivering reliable long-term performance.
8. Lightweight and robust: The material combines light weight with structural strength, simplifying handling during construction and allowing easy cutting with a saw or sharp knife.

Roof Design

Refer to the recommendations outlined in BS 4841: Part 3 and the certification specifications provided by your selected membrane manufacturer.

Falls

A flat roof requires consistent falls that are sufficiently steep to prevent water pooling.

Info

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