How to Decorate Prefabricated Cement Houses

The decoration of prefabricated cement houses requires a balance between structural reinforcement and functional optimization, which can be systematically implemented from the following aspects:

1. Floor Decoration: Combining Structural Reinforcement with Waterproofing
If the prefabricated slab floor has been in use for a long time, structural reinforcement is necessary before directly laying tiles or flooring. The preferred option is to add reinforced concrete small beams or steel beams beneath the prefabricated slabs to enhance overall stability by distributing the load. The secondary option is to locally level the floor, lay a waterproof layer, use cement self-leveling for further leveling, and then lay tiles or flooring. The waterproof layer should extend at least 30 cm up the wall to prevent moisture penetration and material deformation.

2. Wall Decoration: Leveling and Base Layer Strengthening
Cement walls often have uneven surfaces, requiring a two-step treatment: Step 1 involves initial leveling with white latex paint or cement mortar, with severe uneven areas needing the surface layer to be removed and re-plastered. Step 2 involves applying a base film (such as polyvinyl alcohol glue) to enhance the adhesion of the base layer, facilitating subsequent wallpapering or painting with latex paint. If there are cracks in the wall, epoxy resin glue should be injected first for structural reinforcement, followed by covering with anti-crack mesh.

3. Structural Reinforcement: Specialized Treatment for Weak Points

• Floor and Roof Slabs: When prefabricated slabs crack or shift, fill the cracks with cement mortar and thicken the steel mesh. Roof movement can be stabilized by supporting with iron pipes or adding brick piers. For brick-wood structures, use "clout nails" to connect the wooden roof trusses and purlins to prevent loosening.
• Protruding Parts: Chimneys, parapet walls, and other parts should be equipped with vertical tie bars (such as Φ12 steel bars) or unnecessary attachments should be removed to reduce wind load effects.
• Wall Reinforcement: For load-bearing walls, adopt methods such as brick removal and repointing, steel bar reinforcement, or adding attached columns. For non-load-bearing walls, enhance stability by setting up "wall cables" (horizontal steel bars) or buttresses.

4. Door and Window Decoration: Balancing Sealing and Aesthetics
For door and window installation, prioritize paint-free doors (to reduce formaldehyde emissions). Original windows can be retained but should be checked for sealing. Gap treatment involves two steps: Step 1 involves filling larger gaps with cement slurry; Step 2 involves filling smaller gaps with expanding foam and then applying waterproof sealant. If the door or window frames are deformed, replace them with broken bridge aluminum materials to improve thermal insulation.

5. Kitchen and Bathroom Decoration: Focusing on Waterproofing and Pipeline Layout
The kitchen and bathroom areas require prior planning for water and electrical pipeline layouts, using PPR pipes with hot-melt connections to ensure sealing. After leveling the floor, lay 300×300mm non-slip tiles, with wall tiles reaching a height of at least 1.8m. The waterproof layer should be applied twice (crosswise) and undergo a 48-hour closed-water test without leakage before proceeding with further construction. For the ceiling, aluminum扣板 (aluminum ceiling panels) are recommended for easy maintenance.