Sandwich Panel Roof
Bona supply prefab housing, container houses, steel structure warehouse building and sandwich panel wall and roof for steel buildings.

Application for sandwich panel roof
Sandwich panel roof, with their flexible performance advantages, cover multiple segmented scenarios in the construction industry and demonstrate targeted value in different scenarios:
In the field of industrial manufacturing, sandwich panel roof can be matched with anti-static steel sheet and fire-resistant rock wool core materials in automotive parts factories and electronic equipment production workshops, meeting the strict requirements of constant temperature (± 2 ℃ temperature difference control), dust prevention, and fire prevention in the production environment.
After adopting them in a certain automotive welding workshop, the energy consumption of air conditioning in summer decreased by 35%, while eliminating the fire hazard caused by welding sparks. ​
In the field of logistics and warehousing, large cold chain warehouses use polyurethane sandwich panel roof with a thermal conductivity as low as 0.024W/(m · K).
Combined with ground insulation layers, the temperature inside the warehouse can be stabilized below -18 ℃, and the roof bearing capacity can reach 0.7kN/m2, meeting the installation requirements of top fire pipes and lighting equipment.
Ordinary goods warehouses often use more economical rock wool sandwich panels, which balance moisture resistance and basic insulation. ​
In the field of public buildings, the community sports activity center adopts a color steel sandwich panel roof, which can be customized with appearance textures such as wood grain and brick, integrating with the surrounding residential style.
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At the same time, the roof weight is only 15-20kg/㎡, greatly reducing the cost of the main structure of the building. The roof of the school cafeteria focuses on fire resistance and uses A-grade fire-resistant core materials, which meet the requirements of fire safety regulations. ​
In the field of temporary housing construction, lightweight sandwich panel roof is commonly used for post disaster reconstruction resettlement houses and temporary offices on construction sites.
The length of a single panel can reach 6 meters, and the on-site installation efficiency can reach 200 square meters per day. It can also be disassembled and reused, reducing the generation of construction waste.
Sandwich Panel Roof Specifications
Product Name | Sandwich Panel Roof |
Thickness | 30/50/75/100/150/200mm |
Width | 960/1050mm |
Length | As project need or follow container limit |
Metal Sheet Type | Color Steel Sheet/Aluminum Sheet |
Metal Sheet Thickness | 0.3/0.4/0.5/0.6mm |
Core Insulation | Polystyrene/polyurethane/rock wool |
Color | off white/blue or as request |
Leadtime | 7 days |
Packing | In bulk, wooden pallet |
There are significant differences in performance among different types of sandwich panel, and the selection should be based on project requirements when purchasing.
For example, the thickness of the metal sheet, the thickness of the core material, and the length of the roofing panel, all are need to be designed according to the different spans of the building.
If you need non-combustible materials with a good sound insulation, you can choose rock wool roof panels. If you focus on the heat insulation, polyurethane sandwich panel will be a good option, but If you are sensitive to price and have a limit project budget, you can consider eps roof panel instead.
Advantages of Sandwich Panel Roof
Sandwich panel roof is becoming the preferred choice for many construction projects due to their excellent characteristics and wide applications. ​
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Excellent thermal insulation performance​
The insulation performance of sandwich panel roof is very outstanding. The core material is usually made of high-quality insulation materials such as rock wool and polyurethane, which have extremely low thermal conductivity and can effectively prevent heat transfer.
In the hot summer, sandwich panel roof can block outdoor heat from entering the interior, reducing air conditioning energy consumption. In the cold winter, it can prevent indoor heat loss, maintain warmth, create a comfortable indoor environment for buildings, significantly reduce energy consumption, and achieve energy conservation and emission reduction. ​
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Excellent waterproof performance
Waterproofing is one of the key properties of roofs, and sandwich panel roof performs excellently in this regard. The panel is made of high-quality metal material and has undergone special treatment, with good waterproof and moisture-proof performance.
At the same time, the connection between sandwich panels is made using sealing strips or interlocking technology to ensure the overall waterproof sealing of the roof, effectively avoiding rainwater leakage and providing reliable waterproof protection for the building. ​
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High strength, lightweight, stable and durable
Sandwich panel roof is lightweight but with high strength. The outer metal sheets provide strong compressive and tensile resistance, while the middle core material enhances structural stability, enabling it to withstand large loads.
Whether it is strong wind, rainstorm or snow, sandwich panel roof can easily cope with it to ensure building safety. Moreover, the materials used for sandwich panels have good corrosion resistance, which can effectively resist external environmental erosion, extend the service life of the roof, and reduce maintenance costs in the later stage. ​
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Easy installation
The sandwich panel roof installation is simple and fast. The prefabricated panels are completed in the factory, and only need to be spliced and fixed on site, greatly shortening the construction period.
Compared with traditional roof construction, sandwich panel roofs can save a lot of manpower and time costs, allowing construction projects to be put into use faster.




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