Thermal Insulation Materials for Container Houses

Common thermal insulation materials for container houses include polyurethane foam boards, rock wool boards, polystyrene boards, and glass wool sandwich panels, among others. Here is a detailed introduction:

Polyurethane Foam Boards

Polyurethane foam boards are one of the commonly used thermal insulation materials for container houses. They have a low thermal conductivity coefficient, effectively blocking heat conduction and offering excellent thermal insulation performance. For example, some packing-box container houses use hot-dip galvanized cold-formed steel sections as frames, paired with fire-resistant polyurethane sandwich panels. These houses have both thermal insulation and fire-resistant properties and can be used independently or stacked in multiple layers, suitable for construction site dormitories, office areas, and temporary meeting rooms. Residential container houses with a polyurethane foam layer of over 50mm in the middle can achieve good thermal insulation effects. The national 'Technical Standard for Steel Structure Integrated Houses' explicitly requires that the heat transfer coefficient of the walls of residential containers should be ≤0.45W/(㎡·K), equivalent to 1.8 times the thermal insulation efficiency of traditional brick-and-mortar walls.

Rock Wool Boards

Rock wool boards also have certain thermal insulation effects and good fire-resistant properties. In the construction of container houses, rock wool can be used as a thermal insulation material filled in the walls to improve the thermal insulation performance and fire safety of the houses. For example, the container-type mobile houses launched by Zhejiang Hangxing Green Building Materials Technology may include high-performance thermal insulation layers in the wall panels of the containers, which may contain rock wool materials. Paired with double-glazed windows, they effectively enhance the comfort of the indoor environment.

Polystyrene Boards

Polystyrene boards are common thermal insulation materials with low thermal conductivity and good thermal insulation performance, effectively blocking heat transfer and improving the thermal insulation performance of houses. In the design of container houses, consideration can be given to adding thermal insulation layers such as polystyrene boards on the exterior wall surfaces or interior walls to form effective thermal insulation barriers, reducing heat transfer and maintaining stable indoor temperatures.

Glass Wool Sandwich Panels

Glass wool sandwich panels have both thermal insulation and fire-resistant functions and are commonly used for the wall panels and roof panels of container houses. The glass wool filled inside effectively blocks heat transfer while meeting fire safety requirements, ensuring the safe use of the houses.