How to Decorate a Prefabricated Panel House

The decoration of a prefabricated panel house requires careful planning, with a focus on controlling key aspects such as safety, reinforcement, and functional upgrades.

I. Strictly Regulate Plumbing and Electrical Renovations
Prefabricated panels have a hollow structure, and it is strictly prohibited to cut horizontal grooves in the walls. Cutting horizontal grooves can damage the internal load-bearing structure of the prefabricated panels, leading to the risk of panel fracture and potentially causing serious safety issues such as the collapse of the floor above. Plumbing and electrical lines should be laid by cutting vertical grooves along the walls or using exposed conduit methods to ensure that the line direction aligns with the load-bearing direction of the prefabricated panels. If wall penetration is required, holes should be made at the joints of the prefabricated panels to avoid direct damage to the panels.

II. Comprehensive Inspection and Reinforcement of Old Houses
Before renovation, a professional team should be commissioned to conduct a 'comprehensive physical examination' of the house, focusing on inspecting the following:

• Wall Cracks: Cracks less than 0.3 millimeters wide can be repaired by grout injection, filling with materials such as epoxy resin; wider cracks or those that penetrate the wall require reinforcement with steel plates or carbon fiber cloth.
• Steel Bar Corrosion: The degree of steel bar corrosion should be detected using professional instruments. Mild corrosion can be treated by descaling and then applying anti-rust paint, while severe corrosion requires replacing the local steel bars and re-pouring a concrete protective layer.
• Foundation Settlement: If phenomena such as window and door deformation or wall inclination occur, the foundation should be reinforced through methods such as piling or grout injection to ensure the overall stability of the house.
• Roof Waterproofing: Old prefabricated panel roofs are prone to leakage due to thermal expansion and contraction or material aging. The original waterproof layer should be removed, and SBS modified asphalt waterproof membrane or polymer waterproof coating should be re-laid, with a drainage slope set up.

III. Functional Upgrades and Detail Handling

• Sound Insulation Optimization: Install soundproof panels (such as polyester fiber acoustic panels) on the walls and replace windows with double-glazed units to effectively reduce external noise interference.
• Wooden Strip Installation Specifications: The ceiling heights of wooden strips in prefabricated panel houses vary. When installing wooden strips, first find the lowest point of all wooden strips in the room and adjust the other wooden strips to the same height to ensure a flat installation of the gypsum board and avoid cracking due to uneven stress. Gaps between wooden strips can be used for wiring, and wires should bypass the positions of the wooden strips to avoid direct contact with the panels.
• Moisture-Proof Treatment: Prefabricated panels are prone to moisture deformation. A moisture-proof membrane can be laid on the floor, and waterproof coating can be applied to the wall base layer, especially strengthening moisture-proof measures in wet areas such as kitchens and bathrooms.