Container House Dampproof and Ventilation

Dampproof and ventilation in container houses can be achieved through measures such as selecting dampproof coatings, optimizing ventilation system design, using dampproof panels and thermal insulation structures, and reasonably arranging space.

1. Application of Dampproof Coatings
Dampproofing for container houses should start with the surface treatment of the container body. Choose dampproof coatings with anti-mold, corrosion-resistant, and highly waterproof functions. Such coatings can form a dense protective layer, preventing moisture from penetrating into the interior of the container body while inhibiting mold growth and avoiding odors and damage to items caused by dampness. For example, in the dampproof plan of Sichuan Aishangguizu container houses, it is clearly mentioned that regular dampproof coatings should have long-term anti-peeling and anti-corrosion properties to maintain the integrity of the container body surface.

2. Ventilation System Design
Ventilation is the core aspect of dampproofing. Container houses need to reduce internal humidity through natural or mechanical ventilation:

• Natural Ventilation: Install skylights and air vents on the top or side walls of the container body to use air convection to discharge moisture. For example, in the patented technology of dampproof and warm-keeping container houses, the ventilation structure is controlled by driving screws and transmission rods to achieve dynamic adjustment of lighting and ventilation.
• Mechanical Ventilation: In humid areas or enclosed spaces (such as bathrooms and kitchens), exhaust fans or fresh air systems can be installed to forcibly discharge moisture and keep the air dry.

3. Dampproof Panels and Thermal Insulation Structures

• Bottom Dampproofing: Lay dampproof panels on the inner bottom wall of the container body to block the rise of ground moisture. For example, in the patented technology of dampproof and warm-keeping container houses, the dampproof panels work in conjunction with the warm-keeping and thermal insulation layer to reduce the generation of condensed water.
• Wall Thermal Insulation: Use materials such as polyurethane foam layers and fireproof gypsum boards to block heat conduction, reduce the temperature difference between the interior and exterior of the container body, and thus reduce condensation. The national Technical Standard for Steel Structure Integrated Houses requires that the heat transfer coefficient of the walls of residential container houses should be ≤ 0.45W/(㎡·K), which is 1.8 times the thermal insulation efficiency of traditional brick-concrete walls and can effectively maintain indoor dryness.

4. Space Layout Optimization

• Split-level Design: By stacking containers in an upper-lower split-level manner, leave ventilation aisles or courtyards on the ground floor to improve the overall ventilation effect. For example, in the design of container villa courtyards, the split-level layout can enhance air circulation and reduce the risk of dampness.
• Elevated Foundation: Elevate the container on pile foundations to avoid direct contact with the ground, prevent moisture from intruding from the bottom, and facilitate site leveling and pest control.