How to Make Windows and Doors for Container Houses
Making windows and doors for container houses requires steps such as structural reinforcement, component adaptation, sealing and insulation, and safety optimization. The specific operations are as follows:
I. Structural Reinforcement and Cutting Preparation
Before cutting openings for windows and doors in the container, structural reinforcement should be prioritized. Install a horizontal steel beam (e.g., a 100×50mm square tube) at the top of the opening and weld vertical columns on both sides (with a spacing of ≤600mm) to form a local rigid frame to compensate for the strength loss of the container wall panels. Use a plasma cutting machine to cut along the marked lines, controlling the cutting speed at 500mm/min to avoid local overheating and steel deformation. After cutting, grind the cut edges to form an R2.5 fillet to reduce stress concentration, and remove the oxide layer and rust to ensure the quality of subsequent welding. The original coating within 50mm outside the cutting line should be completely removed to prevent air holes or slag inclusions during welding.
II. Window and Door Component Selection and Installation
The type of windows and doors should be determined according to the usage scenario: a single door (800×2000mm) or a double door (1600×2000mm) is recommended for doors, and aluminum alloy tempered coated hollow casement windows (1200×950mm) are preferred for windows, taking into account both lighting and safety. In terms of materials, the door frames/window frames should be made of aluminum alloy or stainless steel. The glass should be insulating glass (e.g., a 5+12A+5 configuration) or Low-E glass to improve thermal insulation performance. Auxiliary materials should include neutral silicone structural adhesive (with a weather resistance of ≥25 years) and ethylene propylene diene monomer (EPDM) sealing strips. During installation, use a laser level to adjust the horizontal (with a deviation of ≤1mm/m) and vertical (with a deviation of ≤2mm/m) levels of the frames, and fix them to the angle steel frame with stainless steel self-tapping screws (with a spacing of ≤400mm) to ensure a firm connection.
III. Sealing and Insulation Treatment
The gaps between the windows/doors and the container wall panels should be treated in layers: fill the inner side with polyurethane foam (with a density of ≥35kg/m³) to block air infiltration, and embed sealing strips on the outer side and then apply structural adhesive (with a joint width of 8-10mm and a thickness of ≥6mm) to form a dynamic sealing system. Non-transparent areas (such as around the door frames) should be filled with rock wool or polyurethane insulation boards (with a thermal conductivity of ≤0.032W/(m·K)). The window and door frames should adopt a thermal break structure (e.g., PA66+GF25 thermal break strips), and the glass area should use insulating glass to reduce the heat transfer coefficient, achieving an overall thermal performance with a K-value of ≤2.0W/(m²·K).
IV. Safety and Detail Optimization
The size of windows and doors should comply with emergency escape regulations. The main entrance door should have a width of ≥800mm and open outward. The door lock system should pass 500 opening and closing tests to ensure no jamming. When electrical wires pass through the areas around windows and doors, they should be protected with PVC pipes and kept at a distance of more than 15mm from the metal structure with insulation treatment. The welding operation area should be coated with fire-resistant paint (with a fire resistance limit of ≥1h), and the cutting scraps should be cleaned up in a timely manner to avoid the risk of scratches. After installation, air tightness (with an air leakage of ≤1.5m³/(m·h) under a positive and negative pressure difference of 100Pa) and water tightness (with no leakage under a simulated rainfall intensity of 3L/(m²·min)) tests should be carried out to ensure that the performance meets the standards.
