Secondly, the situation in front of the building (lighting problem), if there is a tall building in front, it should be higher.
Furthermore, the situation behind the building (the problem of backing the mountain) should be relatively low if there are no tall buildings to rely on in the rear.
Finally, the issue of regulating qi. At present, there are many theories about floor and geomantic omen, and there are also many contradictions.
I usually choose floors according to the prior number of river maps. At present, I should choose floor 4.5, (9. 10 to avoid), 14. 15, 19.20.
Note: Generally, the number of floors has nothing to do with the family members' genus.