On the surface, it may appear fine,

However, roof waterproofing is a systematic issue. If initial construction is not done properly, it leads to ongoing hidden risks. With current construction technology, unless it is a military project, general civil buildings almost always experience leaks.
For a simple and practical approach, adding a color steel sloped roof under the pretext of installing solar panels on a flat roof is more effective. Sloped roofs significantly reduce the probability of leakage.

