When it comes to hidden works in kitchen renovation, the key areas include water supply and drainage systems, electrical wiring, and the base layers of floors and walls. These elements are crucial because they form the foundation of a functional and safe living space. Proper attention to these details can prevent future problems and ensure long-term durability.
For drainage systems, PP-R pipes should be installed in a way that ensures both horizontal and vertical alignment. It's important to keep these pipes away from electrical lines, maintaining a minimum distance of 0.2 meters. Connections to fixtures like sinks and toilets must be secure, and a water test is essential to check for leaks. Any minor seepage should be addressed before proceeding.
The floor’s drainage system is another critical component. In kitchens and bathrooms, the ground should have a slight slope (around 2%) to allow water to flow naturally toward the drain. However, the slope shouldn’t be too steep, as this can affect the aesthetics and safety of the floor, especially in terms of slip resistance.
Waterproofing is also vital, especially in areas like the kitchen and bathroom. The waterproof coating should be applied up to at least 1.8 meters high on the walls, while other rooms require a minimum of 0.3 meters. This helps prevent moisture damage and mold growth over time.
PVC pipes used for electrical wiring must be properly installed without any kinks or bends. When making turns, use appropriate bending tools or elbows to avoid wrinkles or cracks. This ensures the wires are well protected and reduces the risk of damage during construction or future renovations.
To protect the PVC pipes after installation, wooden boards can be placed on either side of the pipe, or cement mortar can be used to create a protective layer. This prevents accidental damage from workers walking over them. Additionally, strong and weak electrical lines should be kept at least 50 cm apart to minimize electromagnetic interference and enhance safety.
Finally, the ground base plays a significant role in the overall quality of the renovation. The original floor should be leveled with cement mortar, and special attention must be given to the slope in the kitchen and bathroom. A well-prepared base not only improves the appearance but also ensures that the final flooring will be stable and durable.
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