Container House Roof Insulation

Container house roof insulation can be achieved by selecting appropriate materials, optimizing structural design, and ensuring proper joint sealing. Details are as follows:

Selecting Appropriate Insulation Materials

• Polyurethane Foam Board: It has a low thermal conductivity coefficient, effectively blocking heat conduction. For example, using a polyurethane foam layer of over 50mm in the middle of residential container houses can significantly enhance insulation performance. The national 'Technical Standard for Steel Structure Integrated Houses' explicitly requires that the heat transfer coefficient of residential container walls be ≤0.45W/(㎡·K), and polyurethane foam boards can help meet this standard.
• Rock Wool: It not only provides some thermal insulation but also has fire-resistant properties. The patented container houses from Suzhou Tiandi Color Steel Manufacturing Co., Ltd. have rock wool installed inside the support panels, enhancing both insulation and safety performance of the houses.
• Polystyrene Board: It is also a common thermal insulation material that can effectively block heat transfer and improve the insulation performance of the house.
• Phenolic Foam Insulation Decorative Panel: It has a fire-resistant rating of B1 and can be used for indoor insulation wall panels in rural house renovations as well as for roof insulation in container houses.

Optimizing Roof Structural Design

• Increasing Insulation Layer Thickness: During the construction of container houses, appropriately increasing the thickness of foam and other insulation materials can provide better insulation.
• Adopting a Composite Structure: For example, using anti-corrosion color steel plates on the outer layer to reflect sunlight, setting up an insulation layer in the middle, and using fire-resistant gypsum boards with moisture-proof films on the inner layer to work together in controlling humidity and maintaining temperature, forming a multi-layer thermal insulation structure to enhance insulation effects.

Ensuring Proper Joint and Sealing Treatment

• Panel Joints: If there are gaps at the joints of temporary building panels, it can easily lead to a cold bridge effect, reducing overall insulation performance. Excellent sealing techniques should be adopted, such as using sealant to seal the gaps and reduce heat transfer.
• Roof Joints and Closures: Leakage in space capsules often occurs at panel joints, window and door closures, and roof joints. Standard techniques involve using waterproof membranes, fully sealing with sealant, designing reasonable drainage slopes, and ensuring proper overlapping of panels along the water flow direction to achieve seamless sealing at joints. Strengthening the waterproofing techniques for roof and corner closures can not only prevent water leakage but also enhance insulation performance.