How to Decorate Prefabricated Finished Houses

The decoration of prefabricated finished houses should take into account safety, functionality, and aesthetics, requiring systematic planning from three aspects: structural protection, material selection, and functional optimization, as detailed below:

I. Basic Decoration: Floor, Wall, and Ceiling Treatments

1. Floor Decoration: Prioritize moisture-proof, fire-resistant, and eco-friendly materials such as composite wood flooring, non-slip tiles, or floor adhesives. Before construction, lay a moisture-proof pad, especially in humid areas or ground-floor houses, where floor drains or moisture-proof barriers can be installed. Avoid using solid wood flooring (prone to moisture deformation) or heavy stone materials (increasing floor load).
2. Wall Decoration: Choose lightweight, moisture-proof, and eco-friendly materials such as moisture-proof wallpaper, tiles, or diatomaceous earth plaster. If tiling is required, confirm the wall's load-bearing capacity and avoid using large areas of heavy natural stone. For old houses, check for wall cracks and reinforce with steel mesh if necessary before construction.
3. Ceiling Decoration: Use lightweight materials such as PVC panels, gypsum boards, or suspended ceilings to avoid overly heavy suspended ceilings. The ceiling should be painted with moisture-proof coating or covered with a moisture-proof barrier, especially in humid areas like bathrooms and kitchens. If installing lighting or ventilation equipment, reserve inspection ports.

II. Functional Optimization: Electrical, Lighting, and Safety

1. Electrical Facilities: All wiring modifications should be carried out by professional electricians and comply with national safety standards. Wires should be protected by conduits to avoid direct exposure; switch and socket positions should be adjusted according to usage habits, with sufficient quantities reserved. For old houses, replace aging wires and recommend using copper wires with added ground wires.
2. Lighting and Ventilation: Improve lighting by enlarging window areas, adding balconies, or installing skylights; enhance ventilation efficiency by using exhaust fans, fresh air systems, or strategically placing doors and windows to create airflow. Windows are recommended to use double-glazed or vacuum-glazed units with sealing strips for both sound insulation and thermal insulation.
3. Burglary and Fire Prevention: Install security doors, window grilles, or smart security systems; equip kitchens and bedrooms with smoke detectors and add leakage protectors to electrical circuits. For old houses, check the firmness of prefabricated panel joints and reinforce with concrete grouting if necessary.

III. Structural Protection and Detail Handling

1. Load-Bearing Limits: Avoid using expansion screws on walls; instead, use wooden plugs or special adhesives to fix decorations. Do not use heavy materials such as marble or granite in living rooms and bedrooms. Conduct a 24-hour water closure test before laying tiles in kitchens and bathrooms to confirm no leakage.
2. Lightweight Modifications: Avoid suspended ceilings or use ultra-light materials such as aluminum扣板 (aluminum ceiling panels); if adjusting ceiling height, use wooden strips for elevation instead of direct drilling. Old houses can be fitted with insulation layers (such as polystyrene boards) and thermal insulation layers (such as rock wool) to improve thermal performance.
3. Water Pipeline Renewal: Replace aging water pipes with PPR pipes and optimize layouts to reduce bends; design separate dry and wet areas in bathrooms to prevent water vapor from damaging electrical appliances; reserve drainage ports on balconies to prevent water accumulation and backflow.

Key Tip: Before decoration, confirm the house's structural type (such as brick-concrete or frame). For old prefabricated panel houses, prioritize reinforcing load-bearing capacity (such as adding steel beams under floors) before carrying out other projects. All modifications should be made without compromising the overall stability of the house.