Container House Too Hot in Summer

Container houses can become excessively hot in summer, but the following methods can be used to achieve thermal insulation and cooling:

I. Select high-quality thermal insulation materials

1. Polystyrene foam sandwich panels: Made of black steel plates enclosing polystyrene foam, these panels have high thermal insulation properties and can effectively block the transfer of external heat.
2. Rock wool boards: Rock wool itself has thermal insulation effects and can be used alone or combined with the container structure to form a thermal insulation layer.
3. Polyurethane foam layers: The middle layer uses polyurethane foam material that is more than 50mm thick, which can significantly block heat conduction. When combined with an outer layer of anti-corrosion color-coated steel plates that reflect sunlight, an efficient thermal insulation system is formed.
4. Double-layer composite walls: For example, a combination of rock wool and extruded polystyrene boards, along with thermal-break aluminum windows and doors, can control the temperature difference between the interior and exterior within 8-10℃, achieving warmth in winter and coolness in summer.

II. Optimize structural design

1. Increase the thickness of the thermal insulation layer: Thicken the foam or rock wool layer during construction to improve thermal insulation performance and reduce indoor temperature fluctuations.
2. Three-layer key structure: Adopt a composite structure consisting of an outer layer of anti-corrosion color-coated steel plates, a middle layer of polyurethane foam, and an inner layer of fire-resistant gypsum boards + moisture-proof films. This meets the requirement in China's Technical Standard for Steel Structure Integrated Houses that the heat transfer coefficient of residential container walls should be ≤0.45W/(㎡·K), and the thermal insulation efficiency is 1.8 times that of traditional brick-concrete walls.
3. Adjustable sunshade roofs: Install aluminum foil reflective layer sandwich panels on the roof and combine them with adjustable sunshade roofs to reduce direct sunlight and lower roof heat absorption.
4. Bottom ventilation slots: Set up bottom ventilation slots to promote air circulation, carry away ground heat, and create a natural cooling effect.

III. Auxiliary cooling measures

1. Install air conditioners: Used in conjunction with thermal insulation, air conditioners can quickly lower indoor temperatures and improve comfort.
2. Use thermal insulation coatings: Apply reflective thermal insulation coatings on the outer surface of the container to reduce sunlight absorption and lower the surface temperature.
3. Reasonably arrange ventilation: In summer, open the side windows to use wind pressure to create convection and accelerate heat dissipation; in winter, close the windows to retain warmth and reduce heat loss.