174mm Unilin Plydeck Flat Roof Insulation PIR OSB

174mm Unilin FR/TP Plydeck Thermal OSB is a composite insulated panel engineered to combine high-performance Polyisocyanurate core with a composite foil face, securely bonded to 9mm OSB Board. This integrated design delivers superior thermal insulation and decking capability in one product, making it particularly suited for new construction and flat roof renovation work.

Product Specification

Brand: Unilin / Xtratherm®

Model: 174mm OSB

Thickness: 165mm PIR Insulation + 9mm OSB board - 174mm overall

Length: 2400mm

Width: 1200mm

Dimensions: 2,400mm x 1,200mm x 174mm

Board Coverage: 2.88m2

Weight: 40.05kg

Compressive Strength: 150 kPa

R-Value: 7.51 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 characteristics in PIR Rigid Insulation
2. Thermal conductivity rating of 0.022W/mK
3. Combines insulation and decking functionality within a single installation step
4. Compatible with a comprehensive selection of waterproofing systems
5. Formulated from non-harmful constituent materials
6. Manufactured without CFCs/HCFCs
7. Zero ozone depletion potential (ODP) and minimal global warming potential (GWP)
8. Appropriate for both new build and refurbishment applications

174mm Unilin Plydeck Technical 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 installed onto a mastic bed, the panel establishes a continuous vapour control layer for effective moisture management.
3. Water-resistant properties: Unilin Plydeck resists water absorption, making it well-suited for damp conditions.
4. Low thermal conductivity: The insulation core achieves low thermal conductivity, permitting reduced board thickness without sacrificing performance.
5. Swift installation and coverage: The composite board construction facilitates rapid installation and extensive coverage.
6. Improved thermal performance options: Additional Unilin insulation layers can be incorporated between joists or over joist areas to enhance roof insulation performance or minimise material depth.
7. Long-term durability: Unilin Plydeck is engineered for extended service life, maintaining performance throughout the building's lifespan.
8. Lightweight and structurally sound: The material combines light weight with structural integrity, facilitating straightforward handling and allowing modification using standard saws or sharp cutting tools.

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

Explore our Unilin range and refine your selection by thickness or coverage using the filters on the left. For guidance on product suitability for your specific application, or to request a quantity discount quotation, contact us by telephone on +4402038839057, email sales@insulationbee, or use Live Chat - Competitive UK Insulation Pricing.