Sound and Heat Insulation of Container Houses

Container houses can achieve sound and heat insulation through filling thermal insulation materials, adopting thermal-break insulation techniques, using soundproof and shock-absorbing sealing layers, and optimizing waterproof designs.

Thermal Insulation

• Filling Thermal Insulation Materials: High-density thermal insulation rock wool is filled inside container houses, with a thickness generally not less than 75mm and an overall thermal conductivity not higher than 0.04W/(m·K). This effectively blocks heat conduction and provides good thermal insulation. Polyurethane foam layers can also be used to block heat conduction. The national Technical Standard for Steel Structure Integrated Houses clearly requires that the heat transfer coefficient of residential container walls be ≤0.45W/(㎡·K), equivalent to 1.8 times the thermal insulation efficiency of traditional brick-and-mortar walls.
• Adopting Thermal-Break Insulation Techniques: Windows and doors are equipped with thermal-break aluminum double-glazed units. This design improves indoor temperature, preventing excessive indoor temperatures during summer exposure and condensation during winter cold spells, making it suitable for long-term use in guesthouses and shops.

Sound Insulation

• Adding Soundproof and Shock-Absorbing Sealing Layers: High-quality container houses incorporate soundproof and shock-absorbing sealing layers in walls and ceilings to block external noise, meeting the usage requirements of guesthouses, teahouses, and shops, ensuring an indoor-outdoor noise difference of not less than 35 decibels.
• Optimizing Structural Design: A multi-layer structure is adopted, such as using anti-corrosion color-coated steel sheets on the outer layer to reflect sunlight, polyurethane foam layers in the middle to block heat conduction, and fire-resistant gypsum boards + moisture-proof films on the inner layer to jointly control humidity and temperature. This structure also helps improve sound insulation.

Waterproofing

• Rational Drainage Design: Design a reasonable drainage slope and ensure that panels are overlapped in the direction of water flow, achieving seamless sealing at joints to prevent rainwater leakage.
• Sealing Techniques: Use waterproof membranes and fully seal with sealant. Three layers of sealing strips are installed at the joints of door frames, window frames, and wall panels. All joint seams are filled with weather-resistant sealant. Strengthen the waterproofing techniques for roofs and corner closures to ensure no leakage traces inside the wall panels after 72 hours of continuous watering.