In the wake of recent heavy rains, many homeowners have found themselves dealing with water seepage in their homes. This issue can be frustrating and costly if not addressed properly. But what causes it, and how can it be fixed? Let’s take a closer look at the common problems and expert advice on how to tackle them.
Jinghua Times reporter Ma Xijinghua and Wu Shangnan report that some residents living on the top floor are experiencing leaks from their roofs and walls. According to experts, this is often due to poor roof design or inadequate waterproofing. Once such issues are discovered, it's crucial to contact the property management immediately to ensure the problem is fully resolved.
For older buildings, even if there's no visible leak, homeowners may notice mold or dampness on the walls. This is typically caused by aging materials in the joints between concrete slabs, leading to moisture infiltration. While applying waterproof paint on the interior walls can offer a temporary fix, the most effective solution is to involve the property owner or developer to address the root cause.
Window leaks are another common issue, often stemming from poor sealing materials. When the window frame doesn’t fit tightly against the wall, gaps can form, especially after temperature changes. These gaps may crack over time, allowing water to enter. To fix this, old sealant should be removed and replaced with high-quality, stretchable foam and a durable sealant. Although this can be expensive, regular maintenance can help extend its lifespan.
Another frequent mistake is ignoring the drainage slope on window sills. A proper slope ensures rainwater flows away from the house. If this is missing, water can flow back into the building. Some homeowners, during balcony renovations, move windows outward without considering the drip edge, which can lead to water getting trapped between the window and the wall.
For rear-closed terraces, leaks often occur due to improper installation of windows. Before installing windows, the outer walls should be properly waterproofed and insulated. If there's no beam above the terrace, a false beam should be added to both enhance aesthetics and improve waterproofing. This structure should be sealed with quality materials and finished with an aluminum composite panel to prevent water from entering.
Once the terrace is properly handled, the window sill must also be checked for a proper drainage slope. Installing a quality window and sealing all joints with high-performance sealant significantly reduces the risk of future leaks.
Experts also emphasize the importance of waterproofing the original floor during construction. Even if the terrace isn’t closed, the drainage system should be inspected and upgraded if necessary. It's essential not to damage the existing waterproof layer, as this can worsen the problem.
Inside the home, certain checks can help prevent water damage. For example, any holes in the kitchen wall should be sealed and made waterproof. Air-conditioning holes should have a slight downward slope to prevent rainwater from entering. Additionally, inspecting pipes and ducts for signs of leakage is crucial during home inspections.
By taking these steps, homeowners can better protect their properties from water damage and avoid costly repairs down the line.
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