This is more out of interest, have you checked whether the slope stays the same further on? Like whether the slope progresses "evenly"? It wouldn't improve anything, but it would be interesting. Because a slope of 1 cm per meter in a new building is quite steep. In an old building you can find something like that; for example, under the roof we had about 11 cm over 3.80 m. But that is also due to the old building from 1900 and the ceiling beams. In a new building it is not allowed to occur in that form, which is also shown by the [DIN].