Which waterproof coating is best for summer bathroom decoration?

When it comes to waterproof coatings available on the market, one-component environmentally friendly polyurethane coatings are highly recommended by the Ministry of Construction. These coatings are ideal for small homes with many pipes and joints because they seal tightly around the pipe and ground, penetrate into gaps, and do not shrink after drying. Compared to rigid materials like cement-based waterproofing, they offer better flexibility and coverage in tight spaces. It's important to choose a reputable brand when purchasing this type of coating, as the cost typically ranges from 50 to 60 yuan per square meter.

Some domestic manufacturers of polyurethane coatings also provide their own professional installation teams. When buying the product, you can request that they send experts to handle the application. To ensure long-lasting waterproofing, the coating should be applied in at least three layers. However, it’s crucial to avoid applying the coating during rainy or humid weather, as this can affect the drying process. The drying time for one-component environmentally friendly polyurethane coatings is usually around 3 to 4 days.

What is the best waterproof coating for bathroom renovation?

One-component environmentally friendly polyurethane coatings, along with cementitious layers and tile coverings, generally cost no more than 400 yuan per square meter. For a typical 5-square-meter bathroom, the total waterproofing cost would be approximately 2,000 yuan, excluding any additional work such as replacing bathtubs or other fixtures.

After completing the waterproofing work, all toilet drains should be sealed, and a low wall should be built at the entrance of the bathroom for a water retention test. The water level should be about 20 cm high. After 24 hours, if there is no leakage around the walls or floor, the waterproofing has been done effectively. If leaks are found, the problem areas need to be identified and repaired promptly.

In addition to the floor, the walls should also be waterproofed. For optimal results, the bathroom walls should be treated up to a height of about 30 cm to prevent water from seeping through the walls. The area near the bathtub should be waterproofed even higher, above the top edge of the tub, ensuring full protection against water damage.

Proper waterproofing not only protects your home but also extends the lifespan of your bathroom. Always follow the manufacturer's instructions and consider hiring professionals for the best outcome.

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