In today’s home decoration trends, wallpaper has become increasingly popular as an alternative to traditional paint. It offers a wide range of designs, is eco-friendly, and easy to clean. However, despite these benefits, many homeowners—especially in the southern regions—often face the issue of moldy wallpaper after installation. This problem isn’t always due to the quality of the wallpaper itself, but rather several other factors that need to be addressed.
One common cause of mold is the condition of the wall surface. In many Chinese homes, walls are not properly prepared or may have structural issues, leading to moisture seepage. PVC wallpapers, which are less breathable, can trap moisture, especially when combined with organic adhesives like rice flour-based glue. To prevent this, it's advisable to use a high-quality moisture-resistant primer or base film before applying the wallpaper.
Another overlooked factor is the installation process. If the adhesive isn’t fully dried, or if there are sudden temperature changes between indoors and outdoors, the wallpaper may lift or develop bubbles. These gaps can trap moisture over time, creating the perfect environment for mold growth. After installation, it’s important to keep the room closed for at least three days to allow proper drying. After that, gently wipe away any excess glue from the seams using a damp cloth. Then, you can safely ventilate the space.
High humidity, especially during the rainy season in southern regions like Guangdong or Hainan, can also lead to mold. Even though these areas have warm and humid climates, it’s still possible to install wallpaper successfully—if you take precautions. Make sure to avoid installing during heavy rain or high humidity, and maintain good ventilation throughout the process.
If mold does appear on your wallpaper, don’t panic. For large areas, replacing the entire section is the most effective solution. For smaller spots, you can try cleaning with soapy water, a mild detergent, or a cloth soaked in alcohol. A few gentle rubs should remove the mold. Another option is using bleach, though it can be harsh on the skin, so always wear gloves and rinse thoroughly afterward. Some people worry about color fading, but special anti-mold treatments designed for wallpaper can help without damaging the surface.
By understanding these causes and taking the right steps, you can enjoy beautiful, long-lasting wallpaper without the worry of mold.
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