79mm Unilin FR/TP Plydeck Flat Roof Insulation

79mm Unilin FR/TP Plydeck Thermal OSB is a composite insulated panel that merges polyisocyanurate core technology with a composite foil face, securely bonded to 9mm OSB Board. This engineered solution provides superior thermal performance and decking capability in one integrated product, making it particularly suited for new construction and flat roof upgrade work.

Product Specification

Brand: Unilin / Xtratherm®

Model: 79mm OSB

Thickness: 70mm PIR Insulation + 9mm OSB board - 79mm overall

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 79mm

Board Coverage: 2.88m2

Weight: 29.08kg

Compressive Strength: 150 kPa

R-Value: 3.19m2K/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

79mm Unilin Plydeck comes with the following characteristics:

1. Gas-tight foil membrane: The underside of Unilin Plydeck features a gas-tight foil membrane, creating a dependable protective barrier.
2. Continuous vapour control layer: When installed with mastic bedding, the panel establishes a continuous vapour control layer that effectively regulates moisture transfer.
3. Water-resistant: Unilin Plydeck resists water absorption, making it particularly effective in moisture-prone conditions.
4. Low thermal conductivity: The insulation core delivers minimal thermal conductivity, enabling thinner board profiles without sacrificing performance.
5. Rapid coverage and straightforward installation: The composite board construction facilitates swift coverage and uncomplicated fitting procedures.
6. Enhanced thermal performance: For optimised roof insulation, additional Unilin layers can be installed between joists or positioned over joists to minimise material depth.
7. Durability: Unilin Plydeck is engineered for extended service life, maintaining structural integrity throughout the building's operational period.
8. Lightweight and robust: The material combines lightness with strength, facilitating straightforward handling during installation, and can be cut with standard saws or sharp blades 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 refine by thickness or coverage using the left-hand filters. For guidance on product suitability for your specific application or to request a bulk quotation, contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Lowest UK Insulation Prices.