On the China Aluminum Network, a user mentioned that after renovating their kitchen, they noticed the aluminum alloy ceiling was not flat. This issue is common and can be caused by several factors. One of the main reasons is poor control of the horizontal line during installation. If the lines are not properly marked or the keel isn't level, it can lead to an uneven surface. Additionally, improper installation techniques can also cause problems. For example, if the slats are installed before the keel is properly adjusted, it may result in wave-like patterns or unevenness.
Another factor is the structural support system. If the suspension rods (booms) aren’t securely fastened, local subsidence can occur, leading to sagging areas on the ceiling. Also, if the slats themselves are already deformed and not corrected before installation, this can contribute to an uneven appearance. This problem is more common with long strip-type panels, as they are more prone to bending under pressure.
To avoid these issues, proper planning and execution are essential. First, ensure that the elevation lines around the ceiling are accurately projected onto the walls, with an error margin no greater than ±5mm. If the area is large, additional control points should be added in the middle to maintain accuracy. The lines must be straight and not sagging during the process.
Second, always level and adjust the keel before installing the slats. This is a critical step in the installation process. Skipping this step can make it very difficult to achieve a flat finish, especially with thin or low-rigidity panels. Even small external forces can cause deformation, which is hard to fix once the ceiling is in place.
Third, consider the weight of any equipment mounted on the ceiling. If certain devices cannot be directly suspended from the slats, they should be supported by a separate boom that is fixed directly to the structural ceiling. Lastly, when using expansion bolts for securing the suspension rods, it's important to document details such as the depth and spacing of the bolts. In key areas, a pull-out test should also be conducted to ensure safety and stability.
By following these guidelines, you can significantly reduce the chances of an uneven aluminum alloy ceiling and ensure a smooth, professional finish.
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