Why Choose Our Exterior Wall Sandwich Panel
- Pupanel is responsible for running thermal simulations across various climates and, at the same time, optimizing the wall’s thickness and exterior density.
- We have performed a series of experiments to evaluate the tensile strength of the adhesive bond between the sheet and core materials.
- The cavity ratio of the core material has been optimized to minimize the likelihood of steam formation.
- To improve heat resistance at the metal connector points, a cold-bridge control structure was added to the core material.
- The metal plate standard EN 14509 for self-supporting constructions served as the basis for our design, thereby improving structural stability.
- The thermal conductivity of the insulation core material we invented is ≤ 0.022 W/m·K, thereby increasing the insulation’s power.
Pupanel—Your Reliable Exterior Wall Sandwich Panel Manufacturer
The panel’s sandwich integrated panel is fire-resistant, soundproof, and heat-resistant. At the same time, being a prefabricated sandwich panel, it allows installation in one step, saving 30% of the time required. The Pupanel can quickly meet all the diverse requirements your project may have. It does not matter the size, thickness, core material, or surface style; you can always let us know your preferences. So come along and get a free consultation with us right away. Let’s ensure the success of your project together.
Our Products
Fire resistance rating above A1 level, meeting the fire safety requirements of multiple countries.
Grade A fireproof core material with a fine fiber structure offers even better sound absorption.
The thermal conductivity is extremely low, making it suitable for use in insulated sandwich panels.
The reinforced version of the PU sandwich board has better insulation and higher strength.
Features of Exterior Wall Sandwich Panel
The outer wall coreboard offers outstanding insulation and heat retention, significantly reducing the building’s energy usage.
The sandwich structure’s design provides both toughness and lightness, thereby minimizing the building’s load.
High fire resistance rating, capable of meeting the fire protection requirements of various projects.
The factory prefabrication process guarantees accurate measurements and faster on-site installation.
The outer wall coreboard features excellent air tightness, which, in turn, greatly contributes to the building’s overall energy efficiency.
The surface treatment is many and varied, bringing together the practicality and aesthetics of architecture.
It boasts excellent wind and impact resistance, making it suitable for a wide range of challenging environments.
The construction duration is minimal, resulting in a significant reduction in the project’s total delivery time.
Energy Conservation and Heat Preservation
The core material of the Pupanel exterior wall sandwich panel uses state-of-the-art foaming technology, resulting in impressively low thermal conductivity. It would be able to cut off convection of hot and cold air in and out of the room to a large extent. Whether in summer or winter, it can effectively retain the original indoor temperature. Your heating and cooling systems will use less energy over time, and gradually, your initial cost for purchasing insulation panels will be offset.
High Level of Security
The exterior sandwich panels have significantly enhanced their fire resistance and structural stability through the adoption of a special structural design and the selection of high-strength core materials. In cases of extreme situations, such as fire or severe impact, the exterior sandwich panels can provide the building with more room for error and more time.
Construction is Moving Ahead at a Fast Pace
Using modular assembly, prefabricated sandwich exterior wall panels can be installed quickly. Compared to the traditional construction period of several months for exterior walls, installing prefabricated sandwich panels can be completed in as little as half an hour. It will not be necessary to have many laborers for wet processes like mixing cement. Let your project finish and be delivered sooner.
Applications of Exterior Wall Sandwich Panel
Prefabricated sandwich exterior panels can be installed quickly in industrial factories, meeting their insulation requirements.
The exterior enclosure system of large-scale storage buildings typically uses polyurethane sandwich panels.
Use insulated exterior wall sandwich panels to reduce refrigeration motor consumption in the cold storage.
The prefabricated exterior wall sandwich panels integrate fire protection, sound insulation, and thermal insulation, and can be used in the commercial sector.
Mobile houses, which are temporary modular buildings with sandwich-style exterior walls, can be quickly installed and dismantled.
Renovation of the exterior of the old factory building involves installing exterior sandwich panels directly, which is convenient and efficient.
The sandwich-style exterior walls of the livestock farm and agricultural buildings can reduce heat loss inside, thereby increasing product yield.
The metal sandwich exterior wall can provide a clean, hygienic outer surface, helping keep the interior of the clean room clean.
- Our Factory
- Project Case
The use of exterior wall sandwich panels as load-bearing walls is contingent on specific conditions. The external panels, composed of metal, will not qualify as load-bearing walls. Conversely, the use of certain types of high-strength concrete sandwich panels as load-bearing walls is acceptable.
Absolutely. This is particularly the case when the strength of the joints is too great. The secret is to balance the compressive and tensile stresses in the sheet material. It is possible to significantly reduce this flaw by optimizing the stiffness of the joining parts and adding more reinforcement to the outer blade.
The fire resistance ratings of rock wool sandwich panels and glass wool sandwich panels are above grade A, which can meet various fire protection requirements for construction projects and can be used as fireproof exterior wall panels.
The PU foam sandwich panel and PIR foam sandwich panel have extremely low thermal conductivity, which can prevent the loss of hot/cold air inside the room. It can achieve a warmer interior in winter and a cooler interior in summer, which is more effective than traditional exterior wall materials. In extreme temperature conditions, such as cold and heat, the exterior sandwich panels will be a pleasant surprise.
Moisture and condensation problems can be prevented in many ways. One of them is through the exterior wall sandwich panel coating, which employsa waterproof polyurethane coating. Another option is to make the product’s core from waterproof materials such as XPS or EPS. And finally, wall sealing should be done with great care.
The longevity of exterior sandwich panels depends on the panel material chosen. Nevertheless, properly installed and maintained sandwich panels can last more than 20 years. When selecting wall sandwich panels, avoid thin-coated color-steel plates, as their lifespan is not very long.
Exterior Wall Sandwich Panel: A Smarter Choice for Modern Buildings
What are Exterior Sandwich Panels
The outside sandwich panel is a composite protective panel specialized for the building’s outer facade. It primarily consists of two layers of metal panels and a central insulation core. The core material is adjustable as per your specific engineering needs. The choice of rock wool, PU, or PIR insulation is among the various options.
Compared to classic exterior wall materials, sandwich panels are much lighter and easier to install. In a single application, it can still provide insulation, fire protection, and waterproofing. For this reason, sandwich panels have become increasingly popular in construction projects.
The Structure of the Exterior Wall Sandwich Panel
Outer Panel
The outer layer of the sandwich wall panel, which is attached externally, is usually made of color-coated steel plates, galvanized plates, or aluminum-magnesium-manganese plates. It takes full force from the elements, that is, wind, rain, and sunlight, and also has a high demand for weather resistance and anti-corrosion properties.
Insulation Core Material
The exterior wall sandwich panel has a core sandwiched between its two outer layers. Rock wool and polyurethane are common materials in this part, primarily responsible for insulation, heat retention, and fire protection. This layer can be highly effective at reducing heat transfer between the building’s interior and exterior, thereby reducing energy consumption and meeting current heating, cooling, and fire safety requirements.
Inner Panel
This panel, which is located closer to the interior, primarily serves to support and seal. It allows the whole panel to become a stable structural entity, guaranteeing strength and rigidity. Simultaneously, it inhibits the panel from warping or cracking during use, thereby keeping the internal environment cleaner and more durable.
Panel Connection Structure
The connection between exterior wall sandwich panels is usually achieved through tongue-and-groove, hidden fastening, or edge-locking systems. During the installation, one can observe that the panels are very tightly fitted together. This structure does an excellent job of preventing water leakage and the formation of cold bridges, thereby making construction quicker and tidier and providing the exterior wall with a more attractive appearance.
The Limitations of Exterior Wall Sandwich Panels
Heat Bridge Effect
The metal connecting pieces between the inner and outer wall panels will form a heat-conducting channel, thereby affecting the insulation performance of the externally attached sandwich wall panels. When designing, it is necessary to balance structural strength and insulation.
Occupying Space
The exterior wall sandwich panels have a thick wall structure, which will occupy a relatively large area. The wall panels with better insulation performance are thicker. Therefore, you need to first plan out sufficient space around the building.
When Is an Exterior Wall Sandwich Panel the Right Choice
If your goal is to achieve building safety and quality while speeding up the construction process and managing the total cost, then selecting exterior sandwich panels is a smart option. In particular, such panels can meet the requirements for outer structure and insulation while balancing energy efficiency and fire safety in projects with a tight schedule. It is through this methodology that the whole process will be saved not only in time and effort but also in the stability of the building’s operation.
