PIR/PUR Insulated Roof Sandwich Panel
Qingdao Yunda PIR/PUR insulated roof sandwich panels combine profiled galvanized steel facings with a high-performance rigid PIR insulation core. They provide excellent thermal insulation, reliable roof strength, enhanced fire performance and efficient installation for industrial, commercial, agricultural and prefabricated buildings.
Description
Qingdao Yunda PIR/PUR insulated roof sandwich panels integrate an exterior roofing surface, thermal insulation layer and interior ceiling finish into one prefabricated building component. The rigid closed-cell PIR foam core provides efficient thermal insulation, while the profiled galvanized steel facings improve panel stiffness, durability and weather resistance.
The external steel facing features a trapezoidal roof profile that helps increase structural rigidity and supports effective rainwater drainage. Internal facings are available with linear, grooved or smooth profiles, allowing the panel appearance to be selected according to different architectural and interior requirements.
A factory-installed polyurethane gasket and aluminium sealing tape run along the panel core to improve joint airtightness and weather protection. The panels are mechanically fixed to the building structure with steel fasteners, supporting fast, accurate and reliable roof installation.
The panels are suitable for industrial buildings, warehouses, logistics centres, commercial facilities, offices, food-processing plants, agricultural buildings and sports halls. Available panel thicknesses range from 40 to 160 mm, with lengths up to 16,000 mm, enabling the roofing system to be adapted to different thermal and structural requirements.
Product Features
The PIR insulated roof panel combines high thermal efficiency, lightweight construction and dependable fire performance in one factory-produced roofing system. Its trapezoidal exterior profile, sealed longitudinal joint and corrosion-resistant steel facings provide reliable long-term performance under different building and environmental conditions.
- High-performance rigid PIR insulation core
- Closed-cell insulation structure
- Core density of approximately 40 kg/m³
- Excellent thermal insulation performance
- Thermal transmittance as low as 0.14 W/(m²·K)
- Reaction-to-fire classification of B-s1,d0
- Roof fire resistance up to REI 30, depending on configuration
- External roof fire performance of Broof(t1), Broof(t2) and Broof(t3)
- Trapezoidal exterior profile for improved roof rigidity
- Linear, grooved and smooth interior profile options
- Factory-installed polyurethane joint gasket
- Integrated aluminium sealing tape
- Improved airtightness and weather resistance
- Effective panel width of 1,050 mm
- Panel thickness options from 40 to 160 mm
- Panel lengths available up to 16,000 mm
- Multiple protective coating options
- Fast mechanical installation with steel fasteners
- Suitable for industrial, commercial and agricultural roofs
- Wide range of RAL colour options
Manufacturing Features
Controlled PIR Core Formation
Factory-Integrated Joint Sealing
Multi-Layer Steel Protection
TECHNICAL DATA
Table of Technical Parameters of the PWPIR-D Panels
| Thickness [mm] | 40 | 60 | 80 | 100 | 120 | 145 | 160 |
|---|---|---|---|---|---|---|---|
| Modular Width [mm] | 1050 | ||||||
| Length1) [mm] | 2000 ÷ 16000 | ||||||
| Weight2) [kg/m²] | 10.2 | 11.0 | 11.8 | 12.6 | 13.4 | 14.5 | 15.0 |
| Heat Transfer Coefficient Uc for PW PIR-D [W/m²K] | 0.49 | 0.34 | 0.26 | 0.21 | 0.18 | 0.15 | 0.14 |
| Acoustic Insulation Rw [dB] | 26 | ||||||
| Reaction to Fire PIR | B-s1,d0 | ||||||
| Roof Resistance to External Fire PIR | Broof(t1), Broof(t2) and Broof(t3) | ||||||
| Roof Fire Rating PIR3) | NPD | REI 303) | |||||
| Anti-Corrosive Protection | Depending on the coating used4) | ||||||
| Organic Coatings | SP 25, PU, AGRO, FOOD SAFE and other4) | ||||||
| External Facing | Galvanized sheet 0.5 ÷ 0.6 mm5) | ||||||
| Internal Facing | Galvanized sheet 0.4 ÷ 0.6 mm5) | ||||||
| Available Profiles | External facing T; internal facing L, R6), G6) | ||||||
| Insulating Core | Rigid foam with a total density of 40 kg/m³ and closed-cell PUR (polyurethane) / PIR (polyisocyanurate) structure | ||||||
| Application | Non-continuous application on roofs and roof covers | ||||||
1) Length depends on the colour of the external facing and the thickness of the panel.
2) Average weight of a sandwich panel with 0.5 mm outer facing, including product tolerance.
3) Detailed information, including panel layout and support spans, is available in the applicable technical documentation and general terms of sale.
4) Organic coating selection depends on durability and application conditions and should be confirmed through an environmental assessment.
5) Other steel types may be selected according to application conditions and project approval.
6) Smooth and grooved internal facings may include microwaves that affect the panel appearance in accordance with EN 14509, Annex D.