Why do you choose the Duowei PIR sandwich roof panel?
PIR roof panels are roofing materials with good thermal insulation performance and load-bearing capacity. Clients can choose the thickness of the panels comprehensively based on the span, load and other factors of their projects.
The thicker the panel, the better the thermal insulation performance. For example, the heat transfer coefficient of a 30mm panel is 0.32, while a 150mm panel is only 0.11. This means that under the same conditions, a 150mm thick panel conducts less heat, and the indoor temperature is less affected by the external environment.
The thicker the panel, the larger the span allowed under the same load; the fewer components are required in architectural design and engineering. Designers can create larger uninterrupted spaces, which increases the degree of design freedom.
| Allowable Span and Heat Transfer Coefficient of Duowei PIR Roof Sandwich Panel (Allowable Deformation f≤L/240) |
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| Panel thickness (mm) | Heat transfer coefficient (W/m2k) |
Weight(kg) | Loads (P=KN/m2) |
0.60 | 0.80 | 1.00 | 1.20 | 1.50 |
| 50 | 0.46 | 10.15 | L(m) | 3.59 | 3.17 | 2.85 | 2.61 | 2.33 |
| 75 | 0.3 | 11.18 | L(m) | 4.64 | 4.07 | 3.66 | 3.34 | 2.96 |
| 100 | 0.23 | 12.22 | L(m) | 5.57 | 4.88 | 4.38 | 3.99 | 3.53 |
| 120 | 0.19 | 13.05 | L(m) | 6.28 | 5.49 | 4.92 | 4.48 | 3.97 |
| 150 | 0.15 | 14.30 | L(m) | 7.30 | 6.39 | 5.73 | 5.22 | 4.62 |
| Note: 0.5mm outer steel sheet and 0.4mm inner steel sheet | ||||||||
Advantages
High rigidity
The high-strength core material makes the panel rigid and not easy to deform, so it can withstand large loads and improve the stability and safety of the building.
Strong anti-negative-air-pressure ability
The good structural design of the PIR panel makes it strong anti-negative air pressure ability, which can effectively resist the impact of strong wind on the roof and prevent damage to the roof.
Tight overlapping and convenient construction
PIR roof panels are usually prefabricated in the factory, and installed simply on site, which greatly shortens the construction period and improves construction efficiency.
Properties of Duowei PIR roof panels
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Properties of Duowei PIR Roof Panel |
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Color range |
Customized |
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Insulated core |
PIR |
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Painting |
Polyester PE, SMP, HDP, PVDF etc. |
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Galvanizing |
Hot-dip zinc,Hot-dip Al-Zn,Hot-dip Zn-Al-Mg |
Recommended Type
 |
Duowei PIR Roof Sandwich Panel | |||||
| Parameter | Profile | Steel Sheet | ||||
| I | II | III | IV | |||
 |
Thickness of exterior facing (mm) | - | 0.5-0.8 | 0.4-0.8 | 0.4-0.8 | 0.5-0.8 |
 |
Thickness of interior facing (mm) | Square wave (S) | 0.4-0.7 | 0.4-0.7 | - | 0.4-0.7 |
| Flat (F) | 0.5-0.7 | 04-0.7 | ≥0.065mm Aluminum foil |
0.6-0.7 | ||
| Soft material | - | Aluminum foil or cement mortar cloth | - | |||
 |
Effective width (mm) | 1000 | ||||
| Thickness (mm) | I: 50,60,75,100,120,150,200 | |||||
| II: 100 | ||||||
| III: 60,100 | ||||||
| IV: 30,38,50,75,80,100,150 | ||||||
Overlapping effect
Packaging
PIR roof panels are neatly stacked and crest to crest, which not only saves packaging space but also makes loading, unloading and transportation more convenient. The external plastic film can effectively protect the sandwich panels from damage by external environmental factors such as rain, dust, scratches, etc., ensuring that the products are intact during transportation and storage.
Application
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