Flat Roof Insulation Panel – PIR – Flat Roof Applications

Product Overview

Our Professional Flat Roof Decking Insulation Panel combines a 106mm thickness with a substantial 2400mm x 1200mm sheet size. It features a composite structure with a rigid PIR (polyisocyanurate) insulation core bonded to a 6mm plywood facing, providing a durable and thermally efficient substrate perfect for flat roof construction. The PIR core offers low thermal conductivity, ensuring effective heat retention, while the plywood layer serves as a stable, load-bearing surface. Suitable for warm roof systems, this panel ensures rapid installation and long-term dimensional stability, making it ideal for energy-efficient construction and compliance with modern building regulations.

Features & Benefits

• Composite Construction: Rigid PIR insulation core bonded to structural-grade plywood.
• Thermal Efficiency: Low-conductivity PIR delivers reliable insulation for warm roof build-ups.
• Load-Bearing Surface: 6mm plywood face provides strength for mechanical fixing or membrane bonding.
• Moisture Resistance: Closed-cell insulation resists water absorption and maintains integrity.
• Fast Installation: Factory-laminated board simplifies fitting and reduces roof build-up time.
• 106mm Thickness: Delivers high insulation levels for energy-efficient roof designs.

Applications

• Flat Roofing Systems: Used as a thermal deck beneath single-ply, bituminous, or liquid-applied membranes.
• Warm Roof Construction: Provides continuous insulation above structural decks.
• Timber or Steel Structures: Compatible with both substrates for commercial or domestic projects.
• Energy-Efficient Roofing: Contributes to reduced heat loss and improved building performance.

Installation Guidance

• Preparation: Ensure roof deck is clean, dry, and structurally sound before installation.
• Fixing: Secure mechanically using approved insulation fasteners through the plywood face.
• Joint Treatment: Stagger board joints; tape or seal where required by membrane specification.
• Finishing: Apply waterproof membrane directly to the plywood face in accordance with manufacturer guidance.

Compliance & Performance

• Thermal Conductivity: PIR core rated at 0.022 W/mK.
• Fire Performance: Plywood facing classified to relevant Euroclass standards; system performance dependent on full roof build-up.
• Dimensional Stability: Maintains rigidity and integrity under load and temperature changes.

FAQs

• Can this panel be used on timber structures? Yes, it is compatible with both timber and steel substrates.
• Is additional membrane required? Yes, apply a waterproof membrane as per installation guidance.
• What is the thermal conductivity of the PIR core? The PIR core is rated at 0.022 W/mK, ensuring excellent insulation.