How to Build a House Well with Prefabricated Panels

When building a house with prefabricated panels, it is essential to ensure structural safety and functional integrity through standardized foundation treatment, framework construction, module assembly, and detailed finishing. Here are the specific steps:

1. Foundation Treatment: The Core Step for a Stable Foundation
The foundation is the load-bearing base of the house. The excavation depth should be determined based on geological conditions (e.g., approximately 60 cm in rural South Korea). Lay white plastic sheeting to prevent moisture loss, and then pour a non-reinforced concrete pad. This step enhances foundation strength and prevents later settlement. After pouring, check that the ground height meets design requirements and ensure the flatness error is within the allowable range.

2. Installing Foundation Piles and Beams: Building the Load-Bearing Skeleton
After the concrete sets, install anchor plates and drill holes using a drill, securing them with expansion screws. Then, use a mobile crane to install prefabricated foundation piles (e.g., 5-ton specifications), ensuring verticality and load-bearing capacity. When installing beams, repeatedly measure and adjust with a level, and after securing with nuts, fill the gaps with expanding foam to prevent rainwater infiltration, which could cause rust or structural loosening.

3. Erecting the Main Framework: Precise Assembly of Prefabricated Panels
Use specially made prefabricated panels to assemble walls and roofs without traditional reinforced concrete. When assembling walls, fill gaps with foam adhesive, and reserve openings for windows and entrances to ensure sealing and functionality. For the roof, first support a circular skylight tray, secure it with beams, and then cover it with thick wooden planks to form a stable structure. During this stage, strictly check that the assembled parts are aligned to avoid stress concentration and cracking.

4. Wall and Roof Treatment: Dual Protection for Waterproofing and Insulation
Wrap the exterior walls with a waterproof foam layer, cover them with patterned waterproof tarps, and secure the edges to form the first waterproof barrier. For the roof, use transparent glass for daylighting, and fill the spaces between interior beams with foam boards and cover them with wooden planks to ensure light transmission and enhance insulation. All materials must meet weather resistance standards to adapt to different climatic conditions.

5. Floor Installation: Scientific Matching of Span and Thickness
Choose the floor installation direction based on the house span: for spaces with a small span, prioritize horizontal installation to enhance pressure-bearing capacity and reduce foundation settlement risk. The floor thickness is usually 5 cm, and after installation, grout the component gaps to ensure integrity. This step requires structural calculations to avoid deformation due to uneven loads.

6. Modular Assembly (Optional): A Modern Solution for Efficient Construction
If adopting a modular approach with factory-prefabricated structures, walls, utilities, and finishes, on-site assembly only requires following the design drawings, which can shorten the construction period by more than 50%. Modules must pass quality inspections to ensure the strength of connection nodes meets standards. This solution is suitable for standardized housing or emergency shelters but requires advance planning of utility layouts to avoid later modifications.

Key Considerations: All steps must strictly adhere to construction specifications, with regular inspections of material quality and connection strength. While building with prefabricated panels is efficient, it requires strict design precision and construction techniques, so it is recommended to be carried out by a professional team.