Container House Renovation Plan

The renovation of container houses requires a combination of structural safety, functional optimization, and aesthetic design, with the following plan implemented step by step:

I. Basic Renovation of Old Containers

1. Structural Inspection and Reinforcement: Before renovation, entrust a professional agency to inspect the container for rust and deformation, focusing on corner fittings, bottom sills, and side panel connections. If structural damage is found (such as local rust-through or frame deformation), cut and replace the damaged parts, and weld reinforcement plates or C-shaped steel for strengthening.
2. Surface Anti-Corrosion Treatment: Use mechanical rust removal (such as sandblasting) to reach the Sa2.5 standard, removing all rust and old coatings. Spray epoxy zinc-rich primer (dry film thickness ≥ 80μm) to enhance cathodic protection, use epoxy micaceous iron intermediate coat, and choose polyurethane or fluorocarbon paint for the topcoat. The thermal insulation layer uses polyurethane foam (50-100mm), with the outer layer covered with metal carved panels or anti-corrosion wood for both insulation and decoration.
3. Standardized Opening Operations: For door and window openings, first cut and then weld C-shaped steel reinforcement frames. The distance from the window opening to the corner should be ≥ 300mm to avoid stress concentration. After opening, apply anti-rust paint and cover with aluminum foil tape to protect the edges.

II. Functional Upgrades and Space Optimization

1. Space Expansion Techniques: Increase the area by horizontally joining containers (2-3 containers spliced) or vertically stacking them (2-3 layers), welding reinforced frames at the connections and using high-strength bolts for fixation. When stacking, install steel beams on the top of the bottom container to distribute the load.
2. Lighting and Energy-Saving Design: Replace the south facade with floor-to-ceiling windows (occupying 60% of the wall area), and install Low-E glass skylights on the roof at a ratio of 1㎡ skylight per 20㎡ to reduce summer solar radiation heat.
3. Ecological Shading System: Set up 30cm deep planting troughs on the west-facing wall, plant climbing plants (such as ivy, trumpet creeper) to form a natural shading layer, reducing indoor temperature by 3-5℃.
4. Modular Expansion Interfaces: Reserve folding terrace installation positions on the roof (load-bearing ≥ 300kg/㎡), and set standardized interfaces on the side walls for future installation of solar panels or additional modules.

III. Key Points for Internal Renovation Implementation

1. Space Layout: Use light steel keel partitions to divide functional areas, with the bedroom area using sound-absorbing cotton-filled walls to enhance privacy. The kitchen and bathroom are concentrated to shorten water and electricity lines.
2. Decorative Material Selection: Use environmentally friendly latex paint or bamboo fiber boards for walls, and lay SPC stone-plastic floors (waterproof and moisture-proof) on the ground. The ceiling uses integrated ceilings to hide pipelines.
3. Furniture and Storage: Customize furniture that fits the dimensions (such as tatami bed boxes), and design curved wardrobes or storage shelves at corners. Install flexible storage systems such as pegboards and folding tables on the walls.
4. Water and Electricity Systems: Use PPR pipes for water supply and drainage and pre-bury a 30mm thick insulation layer. Electrical lines are protected by metal pipes, and sockets are arranged at a standard of no less than 6 groups per 10㎡.

IV. Key Precautions

• Major structural modifications (such as cutting beams and columns, adding floors) must be completed by a team holding the GB50017-2017 steel structure design qualification.
• After renovation, the container house must pass airtightness, watertightness, and wind pressure resistance tests to ensure a service life of more than 25 years.
• For commercial use, it must comply with the provisions on fire protection and evacuation in the "Technical Standard for Container Houses" (GB/T 36430-2018).