Water Leakage in Prefabricated Panel Houses
The common areas, causes, and solutions for water leakage in prefabricated panel houses are as follows:
Water leakage issues in prefabricated panel houses mainly occur at the joints, roofs, and areas affected by construction problems. The causes and solutions for water leakage vary depending on the location.
Joint Leakage: The joints of prefabricated panel houses are high-risk areas for water leakage. During the assembly process, if there are defects in the jointing technique or inadequate sealing at the joints, gaps can form. Over time, factors such as rainwater erosion and temperature changes can cause these gaps to expand, allowing rainwater to seep into the interior through the joints. For example, water leakage on the east wall of a balcony may be due to water infiltration through the joints. To solve this problem, the joints need to be resealed. First, clean the debris and dust from the joints to ensure they are clean. Then, use specialized waterproof sealants or waterproof membranes to fill and seal the joints, enhancing their waterproof performance.
Roof Leakage: For prefabricated panel houses in older residential areas, roof cracking is a significant cause of water leakage. As the service life of the house increases, the prefabricated panels on the roof may develop cracks due to natural aging and long-term load-bearing. Once the roof cracks, rainwater can seep into the interior through the cracks, affecting living comfort and posing a potential hazard to the building's safety. For example, the Hongyan Point-type Building in Horqin District, Tongliao City, suffered from roof cracking and water leakage, and without property management or maintenance funds, repairs required contributions from homeowners. After multiple rounds of negotiations failed to reach an agreement, the community could only take temporary protective measures during the rainy season to ensure residents' safety. To solve roof leakage problems, if the cracks are small, high-pressure grouting can be used to inject waterproof materials into the cracks, filling them and providing waterproofing. If the cracks are large or the roof is severely aged, it may be necessary to relay the waterproof layer and conduct comprehensive repairs on the roof.
Leakage Caused by Construction Problems: During the construction of prefabricated panel houses, improper assembly and jointing can lead to safety hazards such as water leakage in the prefabricated houses. For example, a cement prefabricated panel house in Luoshan County experienced disputes due to water leakage and cracking issues. To solve such problems, a professional construction team needs to conduct a comprehensive inspection of the house to identify the areas affected by improper construction that are causing water leakage. Then, based on the specific situation, repairs and reinforcements should be carried out to ensure that the assembly and jointing of the house comply with regulatory requirements and improve the overall waterproof performance of the house.
