Soundproof Materials for Container Houses

Common soundproof materials for container houses include soundproof blankets, soundproof cotton, high-density panels (such as gypsum board and fiber cement board), and rock wool, among others. The specific choice should be determined based on a combination of noise type, installation location, and construction conditions.

1. Soundproof Blankets
Soundproof blankets are one of the core soundproof materials for container houses, particularly suitable for soundproofing walls and ceilings. Typically made of high-density rubber or PVC substrate, they achieve soundproofing by blocking sound wave propagation, showing significant effects on low- to mid-frequency noise (such as human voices and traffic noise). During construction, they should be used in combination with gypsum board or other panels to form a sandwich structure of "soundproof blanket + panel", which can significantly enhance sound insulation. For example, a 2mm-thick butyl damping soundproof blanket combined with gypsum board can achieve a sound insulation level of over 30dB.

2. Soundproof Cotton
Soundproof cotton absorbs sound wave energy through its porous structure, making it suitable for soundproofing positions such as pipes and wall cavities. Polyester fiber cotton, glass wool, and rock wool are common types, with rock wool offering both soundproofing and thermal insulation properties, suitable for wrapping hot and cold water pipes. During construction, it should be tightly filled into pipes or wall cavities and fixed with tape or straps to prevent sound leakage through gaps. For example, polyester fiber cotton has an absorption efficiency of over 80% for high-frequency noise above 1000Hz, with low cost and environmental friendliness.

3. High-Density Panels
High-density panels such as gypsum board and fiber cement board block sound waves by increasing surface density, suitable for later renovations of walls and ceilings. For example, fiber cement board over 12mm thick has a sound insulation level 10-15dB higher than ordinary gypsum board, and its surface can be directly painted or wallpapered, combining aesthetics with functionality.

4. Rock Wool
Rock wool, made from melted natural rock, has excellent soundproofing and fireproof properties, commonly used for wall filling or roof insulation layers in container houses. Its density typically ranges from 80-200kg/m³, with sound insulation increasing with density, while effectively blocking heat conduction and improving indoor temperature stability.

Construction Points

• Combined Use: The effect of a single material is limited, and overall performance should be enhanced through a combination of "sound absorption + soundproofing + decoupling". For example, walls can be installed with soundproof blankets, studs, rock wool, and gypsum board in sequence.
• Sealing Treatment: All joints and penetrations should be sealed with sealant or soundproof strips to prevent sound bridges from forming.
• Waterproof and Moisture-Proof: Soundproof cotton and rock wool should avoid prolonged contact with moisture, which may reduce performance or breed mold.