Sound Insulation Effect of Container Houses

The overall sound insulation effect of container houses is relatively poor, but it can be significantly improved through specific designs and modifications. Its sound insulation performance is influenced by materials, structure, and modification techniques, as detailed below:

1. Sound insulation defects of ordinary container houses
Ordinary containers are primarily made of metal materials, which have strong sound transmission properties, resulting in poor sound insulation performance. For example, the container dormitories at the Nagoya Asian Games had extremely poor sound insulation, requiring athletes to wear earplugs to sleep; the activity board houses in Guiyang also had unsatisfactory sound insulation due to thin wooden floors and poor sealing. Additionally, low-end container houses, with their simplistic materials, fail to ensure thermal insulation, further exacerbating noise interference issues.

2. Factors affecting sound insulation performance

• Materials and structure: When the metal container body is directly exposed, external sounds such as wind and voices can easily penetrate indoors. If the containers are connected only with thin wooden boards or simple joints, the sound insulation effect is even worse.
• Modification techniques: Container houses without sound insulation treatment may experience internal noise levels exceeding 65 decibels in mechanical operation or noisy environments, far surpassing the normal indoor conversation standard (50-60 decibels).

3. Modification plans to improve sound insulation

• Adding sound insulation layers: High-quality space capsules or customized container houses incorporate sound insulation, shock absorption, and sealing layers in walls and ceilings to effectively block external noise. For example, Zeyu Container Houses use environmentally friendly and flame-retardant sound insulation materials, providing a living comfort level close to that of brick-concrete structure houses.
• Optimizing structural design: Fixed-type container houses are combined with independent containers, and their floors are made of thick materials such as steel, cement, and tiles, offering better sound insulation than wooden structures.
• Sealing treatment: Strengthening the sealing of container joints, door and window seams can reduce noise penetration. For example, Xi'an KuaiPin Container Houses adopt an air-break thermal design, balancing sound insulation and thermal insulation.

4. Sound insulation performance in practical applications
Actual measurement data shows that optimized container houses can control internal noise levels below 58 decibels in construction site mechanical operation environments, meeting the standard for normal conversation. In contrast, unmodified container houses may exceed 65 decibels in similar environments, necessitating earplugs for rest.