Why Choose our Sandwich Wall Panels
- The panels are made of high-strength steel or aluminum. They have an outstanding ability to resist wind pressure, bending, and impact. Even in harsh environments, it will not deform or corrode.
- After precise cutting, the panels are also equipped with professional sealants, gaskets, and waterproof joints to ensure high airtightness and watertightness.
- The core material can be rock wool or PIR/PU, and we also provide you with fire reports and certifications, ensuring the wall does not contribute to fire in case of an incident.
- Our factory uses fully automated production lines. We offer inspection reports for each batch of panels to ensure consistent thickness, density, and surface flatness for every panel.
- The sandwich wall panels are made of low-emission, additive-free materials. They meet indoor air quality standards and can ensure the safety of the installation environment.
Pupanel: Your Reliable Sandwich Wall Panels Manufacturer
Pupanel has been dedicated to the manufacturing of sandwich panels for over two decades. We use high-quality color steel or aluminum sheets and high-performance core materials. All panels we produce undergo strict thickness, density, and surface treatment controls during processing.
Also, before leaving the factory, each batch of products will be tested for compressive strength, flexural strength, fire resistance, and thermal insulation. We will also ensure that they are all in compliance with domestic GB standards and international EN/ASTM standards.
Types of Sandwich Wall Panels
PIR Sandwich Wall Panels have an extremely slow thermal performance degradation. They typically feature Class A fire resistance and excellent thermal insulation.
PU Sandwich Wall Panels have good heat insulation performance, a lightweight design, easy installation, and excellent cost-effectiveness.
EPS Sandwich Wall Panels use cost-effective core materials. They have a lightweight, affordable price, fast installation, and the panel’s fire rating is optional.
Rock wool sandwich wall panels have high thermal insulation and soundproofing. They are made from natural mineral fibers, which are classified as Class A non-combustible materials.
Flat sandwich wall panels have smooth, flat surfaces without any texture or bumps. Their appearance is clean and modern, and they are easy to install and maintain.
Ribbed sandwich wall panels have vertical or horizontal raised ribs on the surface, which enhance the flexural and wind resistance. They will be more stable and reliable in large wall areas.
Hidden fixing sandwich wall panels conceal screws or fasteners within panel joints after installation. They look smooth, and there are no obvious fixing marks on the surface. The screw damage and oxidation were also reduced.
Profiled sandwich wall panels have corrugated or profiled textures on the surface, and they make the sheet stronger. They not only provide stable structures but also allow fast installation.
Features of Sandwich Wall Panels
PIR, PU, EPS, or Rock Wool cores form an extremely low thermal conductivity layer and take on an outstanding thermal insulation performance.
Fire-resistant panels with coated steel or aluminum skins can achieve Class A/B1, GB/T 8624, and EN 13501-1 standards.
To ensure the stability of the structure, we use high-quality and high-strength steel plates or aluminum plates that have passed the strength test.
The panel’s weight is light, which can minimize installation labor, time, and shipping costs.
The panels’ surfaces have been specially treated, making them can resist corrosion, UV, scratches, extreme weather, and minimizing the maintenance needs.
Rock wool cores can absorb sound. The tightly joined panels can also prevent noise leakage through gaps effectively.
Coated metal panels are smooth, anti-corrosion, anti-stain, and easy to clean.
Waterproof, UV-resistant panels with tight connections prevent leaks and mold, which ensures interior safety.
High Consistency of Sandwich Wall Panels
Our factory has fully automated production lines, and we also have professional techniques to achieve precision panel processing and coating. This ensures the thickness, density, and core filling of sandwich wall panels can be highly consistent.
Moreover, before each batch of boards leaves the factory, we will conduct strict inspections on each parameter, including size, weight, thermal conductivity, flame retardancy, and so on. Even if the panels come from different batches, we ensure that they have highly consistent performance and appearance.
Long Service Life and Low Maintenance Frequency
Our sandwich wall panels are designed for long-term use. We will do our best to extend the service life of the panels during material selection and production processes. Also, the panels have anti-corrosion, anti-mildew, and anti-ultraviolet surface coating, and a highly sealed joint design. Through these efforts, we can ensure that the lifespan of the panels will hardly be affected even after daily wear and tear or during extreme weather conditions.
Professional Technical Support and Installation Guidance
Our professional technical support covers the entire lifecycle of the sandwich wall panels, including project design, installation guidance, and after-sales service. Our technical team will assist you in completing the installation smoothly, and we can also reduce your construction risks, enhance the construction efficiency, and save costs.
Where Can Sandwich Wall Panels Be Used?
For industrial buildings, sandwich wall panels perform quite well. Some industrial buildings use traditional single-layer metal wall panels and light steel composite walls, which may cause some problems during use, such as water leakage, deformation, and aging of the walls. The sandwich wall panels have the advantages of high bending stiffness, outstanding heat preservation, and good air tightness. They can overcome these potential problems.
Commercial buildings, such as shopping malls, office buildings, and hotels, require walls to have thermal insulation abilities, reduce the transmission of noise, and allow for long-term maintenance and cleaning. The core material of sandwich wall panels forms an insulating layer, naturally providing excellent thermal insulation, reducing noise transmission, and requiring minimal maintenance and cleaning, making them suitable for commercial buildings.
Temperature changes will directly affect the safety of the goods that need a certain temperature for storage, like fresh food and medicines. For the walls of a cold storage facility, the most important performance indicator is heat conduction. The high-performance insulation core material enables the sandwich wall panels to have extremely low thermal conductivity, and the customizable thickness allows the temperature difference to reach the appropriate level.
Cleanrooms have extremely strict requirements for wall airtightness and surface flatness. Sandwich wall panels feature high airtightness and excellent thermal insulation. In addition, their panels are smooth, dust-proof, and resistant to microbes. Therefore, the panels are not only easy to clean but also will not be corroded by disinfectants, which makes them suitable for use as cleanroom walls.
Modular building walls need to be lightweight, high-strength, easy to assemble, perform consistently, and be durable over the long term, and the sandwich wall panels can easily meet such requirements. They are not only lightweight but also easy to assemble and disassemble, convenient to transport, have a stable core material, and have a long service life, and are suitable for exterior walls in modular buildings.
For some special buildings, like laboratories, exhibition halls, and machine rooms, sandwich wall panels also offer advantages over other types of walls. They can integrate different capabilities of insulation, fire prevention, dust prevention, water resistance, easy cleaning, and sound insulation functions according to your needs, and are suitable for use in multiple scenarios.
- Our Factory
- Project Case
If you prefer long-term reliability, rock wool panels are the best choice. Their structure is the most stable, and it is not prone to absorbing water or expanding. They also have high fire resistance. The PIR and PU boards are also very durable, but in extremely high-temperature or high-humidity environments, their durability is slightly lower than that of rock wool.
Yes. Our sandwich wall panels’ metal panels typically have a special coating. The coating allows the panels to perform well under wind, rain, sea air, salt spray, extreme temperature changes, and strong UV exposure over the long term. Also, they can resist rust and fading.
For sandwich wall panels, the surface coating and high sealing properties can prevent rainwater, dust, and sand from penetrating. Therefore, you don’t need to repair or repaint them frequently. All you need to do is regularly check if there are any dents on the surface of the board, whether the board joints are loose, and to carry out regular cleaning.
Yes. The panel metal layer is usually made of recyclable metals. And the core materials, such as PIR, PU, EPS, and rock wool, can all be recycled industrially. Furthermore, the long service life of the panels means lower replacement frequency, less construction waste, and thus reduced consumption of building materials.
When customizing sandwich wall panels, you should pay attention to the following parameters:
- Core standards like EN 14509 and relevant ASTM structural tests
- Fire performance ratings, such as EN 13501-1
- Thermal conductivity, for example, EN 12667
- Standards for water resistance, air tightness, and weather resistance
- Long-term quality management standards, such as ISO 9001 and ISO 14001
In general, all of these indices are essential.
What is a Sandwich Wall Panel?
Sandwich wall panels are a type of composite building material. They consist of an outer panel, a core material, and an inner panel. This structure enables the sheet material to achieve high structural stiffness and load-bearing capacity with a relatively light weight.
Compared with traditional concrete walls, sandwich panels are lighter in weight, have better insulation performance, are constructed faster, and can also be easily disassembled.
What are the Factors that Determine the Performance of the Sandwich Wall Panel?
The Type and Quality of the Core Material
The core material is the central layer of a sandwich wall panel. It plays an important role in determining its overall performance. The type and quality of the core material directly determine various indicators of the panel, like the weight, the thermal insulation and heat preservation capability, fire resistance performance, and sound insulation effect.
Panel Thickness
You should choose the panel thickness based on the specific requirements of the project; it should be neither too thick nor too thin. If the thickness of the sheet material is too thin, the thermal insulation may be insufficient, and panel stiffness may be inadequate; if the panels are too thick, you may face increased costs and a more complicated installation.
Coating Type and Thickness
The coating of the panel includes PE, PVDF, and special anti-corrosion coatings. The type, thickness, and adhesion of the coating can all impact the effect of the coating, including corrosion resistance, anti-ultraviolet aging, difficulty of cleaning and maintenance, and service life.
Edge Locking and Joints
Edge locking is a critical step during installation. For sandwich wall panels, the precision of the edge locking is especially important. It determines the panel’s waterproof performance, airtightness, condensation risk, and long-term stability directly. If there are defects in the edge locking or the joints are discontinuous, the panel’s airtightness and water tightness during use will be affected.
Limits of Sandwich Wall Panels
Limited Load Capability
The essence of sandwich wall panels is that they are a protective structure, and are not a load-bearing wall. In terms of vertical load-bearing, they cannot replace reinforced concrete shear walls or masonry load-bearing walls.
High Requirements for Installation Accuracy
The sandwich wall panels require a highly integrated system to achieve the expected performance. Although the installation is convenient, the methods for fixing, like edge locking, still require you to follow the specifications strictly. Otherwise, the airtightness, water tightness, and wind resistance of the wall will be reduced.
Lower Impact Resistance
Compared to the reinforced concrete walls or thick brick walls, sandwich wall panels may dent under impact. Hence, they are not suitable for placement in areas that will be frequently impacted by heavy machinery. When the panels need to be installed in areas where forklifts and heavy objects frequently come into contact, you need to take additional protective measures for them.
Tips for Choosing Sandwich Wall Panels
Clarify Project Requirements
Among different projects, the emphasis on the functions of the walls varies. For example, industrial buildings usually need strong walls; commercial buildings need walls with good sound insulation and aesthetic appearance; cold storage facilities need walls with extremely high insulation capacity.
Choose the Appropriate Core Material
There are four options for the core material of sandwich wall panels: PU, PIR, EPS, and Rock Wool. Each type of core material has its own advantages: PU and PIR cores have very high thermal resistance, and they are completely fireproof; EPS is always budget-friendly; Rock Wool cores usually provide good sound insulation and fire resistance. You need to choose the appropriate core material according to the requirements of different projects.
Select the Appropriate Panel Type
The panel structure includes four types: flat, ribbed, profiled, and hidden fixing. The flat panel has a smooth and even surface, whose appearance is better; ribbed and profiled panels have high rigidity; Hidden fixing is more aesthetically pleasing and is easier to clean. You can select the type of panel based on your actual project needs and your desired aesthetics.
Control the Risks as Much as Possible
To minimize the risks of the project, you’d better take some measures. Before the construction starts, you should request some samples from the manufacturer and carry out a sample panel installation. Also, you need to clearly specify the parameters in the contract, including delivery time, performance guarantee terms, and other information.
In addition, to achieve the expected results avoid errors, you need to clarify the specific requirements and standards for project acceptance in advance.
