Sandwich Roof Panel with PIR Core: The Global Standard for High-Performance Roofing Systems

PUR (Polyurethane) and PIR (Polyisocyanurate) roof panels from KUKU Panels are composite sandwich panels with a rigid polyurethane foam core bonded between metal or other rigid facings. While both materials are derived from polyurethane chemistry, PIR incorporates modified isocyanurate structures, enhancing thermal stability and fire resistance. These panels are widely used in industrial, commercial, and cold storage buildings due to their lightweight, high strength, and superior insulation properties.

Material Science Excellence in PUR/PIR Roof Panels

PUR/PIR Roof Panels represent cutting-edge engineering in modern construction. These composite Sandwich Roof Panels with PIR Core combine rigid polyurethane (PUR) or polyisocyanurate (PIR) foam insulation between durable steel facings. PIR's modified isocyanurate structure enhances thermal stability (up to 150°C) and fire resistance, making it the preferred choice for industrial and commercial applications. With a proven track record in global projects like Amazon logistics centers, these panels meet FM Global and UL certifications for safety and performance.

Unmatched Fire Safety & Structural Integrity

Fire Resistance Redefined

PUR/PIR Roof Panels achieve B1 fire ratings (difficult to ignite), with PIR's unique carbonization behavior limiting flame spread. Rigorous testing under GB/T 30735-2014 standards confirms their superiority over XPS and rock wool:

• 94% flame self-extinguishment vs. XPS’s rapid combustion

• 30% smaller fire-damaged areas compared to rock wool systems in photovoltaic roof tests

Engineered for Extreme Conditions

The Sandwich Roof Panel with PIR Core features:

• Hidden nail connections and waterproof grooves to eliminate thermal bridging

• 40mm wave height for superior load-bearing (supports 3% roof slopes)

• 150+ kPa compressive strength, ideal for solar panel integration

Global Applications of PUR/PIR Insulated Ribs GRP Roof Panels

Industrial & Commercial Mastery

• 150+ year service life with <1% water absorption

• 0.022–0.024 W/m·K thermal conductivity for energy-efficient cold storage (e.g., Yisai Beef Cold Storage)

Renewable Energy Integration

KUKU PUR/PIR Insulated Ribs GRP Roof Panel, it outperforms traditional materials in solar-ready roofs:

• 76% adoption rate in U.S. single-ply roofing systems

• Zero structural collapse risks under PV loads vs. moisture-sensitive rock wool

Why Professionals Trust PUR/PIR Roof Panels

Endorsed by EURIMA and UL, these panels offer:

1. FM Global-compliant wind uplift resistance

2. 30% faster installation vs. double-layer metal roofs

3. 25–35 $ /㎡ cost efficiency matching conventional systems

PUR/PIR Roof Panel: The Future-Proof Investment

KUKU PUR/PIR roof panels combine insulation, fire resistance, and structural efficiency, making them a versatile choice for modern construction. Their adaptability to diverse environments—from extreme cold storage to high-temperature industrial settings—positions them as a sustainable solution aligned with global trends in energy efficiency and safety standards.