Waterproof knowledge of home decoration materials
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In home decoration, the selection of materials is crucial—not only in terms of quality, but also in ensuring proper waterproofing. Bathrooms, in particular, require special attention due to their frequent exposure to water. If not properly handled, even small leaks can lead to serious issues, affecting daily life and potentially causing disputes with neighbors. Here’s a detailed guide on waterproofing materials and best practices for home renovation.
When it comes to kitchens and bathrooms, it's highly recommended to use a mortar-based waterproofing agent, such as Lao Yaer Waterproofing Agent. Many people have used this product and found it effective. Traditional waterproof materials often require the base surface to be dry (with moisture content below 9%), which can be challenging in humid areas like bathrooms. This can lead to problems such as the waterproof layer peeling off from the base, creating a "two-skin" effect that reduces effectiveness. The Lao Yaer waterproofing agent, however, can be applied directly onto wet surfaces, simplifying the process and ensuring better results.
So why is waterproofing important? During home renovations, especially in new houses, the original waterproofing system may be damaged. To prevent leaks and protect your property, waterproofing is essential. Water can easily spread through cracks or gaps, leading to damage in lower floors and potential legal issues. A good waterproofing system can last up to 3-5 times longer than standard solutions.
The main areas that need waterproofing include the floors and walls of bathrooms and kitchens, balconies, first-floor surfaces, and basement walls and floors. Roofs, whether prefabricated or cast-in-place, should also follow national regulations for waterproof construction.
For the base surface, it should be clean, compact, and have moisture content no more than 9%. All joints must be neat and meet specifications. The first waterproof layer typically involves applying a flexible coating or membrane. For coatings, a common method is "one cloth and two coats"—after cleaning the base, apply the first coat, let it dry, then add a layer of glass fiber mesh for reinforcement, followed by another coat. The total thickness should exceed 3 mm.
If using a membrane, apply adhesive to both the back of the membrane and the base, then carefully lay it down, ensuring seams are well-sealed. After the first layer dries, the second layer—usually a rigid mortar-based waterproof layer—is applied. This layer should be 20–30 mm thick.
To install the rigid layer, set grids at 4000mm x 4000mm, moisten the base without pooling water, and then apply the mortar or fine concrete in layers, smoothing and compacting as you go. Once the initial setting occurs, remove the grid strips, level the joints, and seal them with a flexible material. Finally, water the area and maintain it properly. If there’s a rooftop garden, cover the soil quickly to prevent damage.