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Why sandwich panel is popular for capsule house exterior wall?
Sandwich panels are popular for capsule house exterior walls for several reasons, and their good noise absorption performance is indeed a significant factor.
Here’s a detailed explanation:
1. Noise Absorption Performance
Punching Process on Steel Plates: Sandwich panels can be designed with perforated steel plates that enhance sound absorption. The holes in the steel plates allow sound waves to enter the insulating core material, where they are absorbed and dissipated, reducing noise transmission.
Insulating Core Materials: The core materials used in sandwich panels, such as polyurethane (PU), polyisocyanurate (PIR), mineral wool, or polystyrene (EPS), have excellent sound-absorbing properties. These materials can be tailored to provide specific acoustic performance, making them ideal for environments where noise reduction is crucial.
2. Thermal Insulation
Sandwich panels provide excellent thermal insulation, which is essential for maintaining a comfortable indoor temperature. This is particularly important for capsule houses, which are often designed to be energy-efficient and sustainable.
3. Lightweight and Strong
Despite being lightweight, sandwich panels are structurally strong and durable. This makes them easy to transport and install, which is beneficial for the modular construction of capsule houses.
4. Aesthetic Appeal
Sandwich panels offer a sleek, modern appearance that can be customized with different finishes and colors. This is important for capsule houses, which often aim for a contemporary and visually appealing design.
5. Quick Installation
The prefabricated nature of sandwich panels allows for quick and efficient installation. This is particularly advantageous for capsule houses, which are often designed for rapid deployment and assembly.
6. Durability and Low Maintenance
Sandwich panels are resistant to weathering, corrosion, and pests, making them a durable option for exterior walls. They also require minimal maintenance, which is beneficial for long-term use.
7. Fire Resistance
Many sandwich panels are designed with fire-resistant core materials, providing an added layer of safety for capsule houses.
Here’s a comparison of Polyurethane Edge-Sealing Rockwool Panels and Ordinary Rockwool Panels based on the features provided:
| Feature | Polyurethane Edge-Sealing Rockwool Panel | Ordinary Rockwool Panel |
| Thermal Conductivity | ≤0.025 W/m·k (Better insulation performance) | ≤0.043 W/m·k (Lower insulation performance) |
| Compressive Strength | ≥150 KPA (Higher strength, more durable) | ≥100 KPA (Lower strength) |
| Fire Resistance | Class A non-combustible (Excellent fire resistance) | Class A non-combustible (Good fire resistance) |
| Density | 80-120 KG/㎡ (Higher density, better structural integrity) | 40-60 KG/㎡ (Lower density) |
| Sealing and Waterproofing | Excellent sealing, prevents water absorption and deliquescence | No edge sealing; water can penetrate and cause deformation |
| Panel Lap | Hidden lap design extends service life | Exposed nail installation; nails can corrode |
| Environmental Performance | Prevents rock wool exposure (safer and cheaner) | Rock wool can be exposed (potential health risks) |
Applications in Industrial Settings
Cement Plants, Steel Plants, Power Stations: In these environments, noise reduction is critical for both worker safety and regulatory compliance. Sandwich panels are used to construct sound-absorbing rooms and enclosures that mitigate noise pollution.
Workshops and Warehouses: These spaces often require a balance of durability, insulation, and noise control, making sandwich panels an ideal choice.
Conclusion
Sandwich panels are a versatile and efficient building material that meets the diverse needs of modern architecture, including capsule houses. Their excellent noise absorption, thermal insulation, lightweight strength, and aesthetic flexibility make them a popular choice for both residential and industrial applications.