84mm Unilin FR/TP Plydeck Flat Roof PIR Insulation

84mm Unilin FR/TP Plydeck Thermal OSB is a composite insulated panel engineered to merge Polyisocyanurate core technology 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 well-suited for new construction and flat roof renovation work.

Product Specification

Brand: Unilin / Xtratherm®

Model: 84mm OSB

Thickness: 75mm PIR Insulation + 9mm OSB board - 84mm overall

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 84mm

Board Coverage: 2.88m2

Weight: 29.80kg

Compressive Strength: 150 kPa

R-Value: 3.43 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 of 0.022W/mK
3. Combines Insulation and Decking in One 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

84mm Unilin Plydeck comes with the following characteristics:

1. Gas-tight foil membrane: The underside of Unilin Plydeck features a gas-tight foil membrane, providing a secure barrier against moisture.
2. Continuous vapour control layer: When bedded onto a mastic layer, the panel establishes a continuous vapour control layer that effectively regulates moisture movement.
3. Water-resistant: Unilin Plydeck resists water absorption, making it particularly effective in damp conditions.
4. Low thermal conductivity: The insulation's low thermal conductivity permits thinner board specifications without sacrificing 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, additional Unilin layers can be installed between joists or to minimise material thickness over joists.
7. Durability: Unilin Plydeck maintains structural integrity throughout the entire building service life, guaranteeing reliable long-term performance.
8. Lightweight and robust: The material combines light weight with structural strength, facilitating straightforward handling during installation, and can be cut with a saw or sharp knife for precise fitting.

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 filter by thickness or coverage on the left-hand side of the page. For guidance on product suitability for your project, or to request a quantity discount quotation, contact us by phone on +4402038839057, email sales@insulationbee or Live Chat - Lowest UK Insulation Prices.