Sandwich panel thickness (mm)
40, 50, 60, 70, 80, 100, 120
Length of sandwich panel (mm)
2000 - 15000
Effective width of sandwich panel (mm)
1000
Thickness of metal sheet (mm)
0.30, 0.35, 0.40, 0.45, 0.50
Operating temperature range (°C)
(-40) - (+80)
Thermal conductivity (λ−W/mK)
0.022
Density (kg/m3)
41 (±2)
Bending strength (N/mm²)
0.24 - 0.30
Compressive strength – 10% expanded (N/mm²)
0.15 - 0.20
Water absorption (after 168 hours – %)
0.05 - 0.20
Fire resistance rating
B2 (DIN 4102) EI30
Closed Cell Composition (%)
91 - 95
Zinc coating layer (µ)
125 - 200
Paint layer (µ)
40 - 45
The PIR-insulated sandwich roof panel with a 5-rib profile is an innovative and practical solution in modern construction. Thanks to its excellent thermal and acoustic insulation, high fire resistance, mechanical strength, and clean design, it meets a wide range of building requirements and is widely used in various sectors.
The panel is made of two galvanized steel sheets with a polymer coating (thickness: 0.3–0.5 mm; width: 1090 mm or 1200 mm), with a core of rigid PIR (polyisocyanurate) foam between them. PIR provides superior fire resistance and is classified as a flame-retardant material.
Five-rib sandwich roof panels with a polyisocyanurate (PIR) core stand out in modern construction projects for their high technical performance and long-term durability. With advantages such as aesthetic design, fire resistance, and energy efficiency, these panels are an ideal choice for various industrial and residential buildings. Structures built with PIR roof panels are safer, more functional, and cost-effective.