Is it harmful to aim the water hole in the roof at the opposite door?

In terms of housing design:

It's a little harmful. If it rains, the water in your bungalow will leak, which will affect your walking. Generally speaking, it is common sense to leave both sides near the door and connect a drain pipe down.

What Feng Shui said:

It's not good for you either. Water in the five elements belongs to wealth, and water means wealth entering the door. Water is wealth, but wealth is extremely bad, and wealth is easy to come and go, but it is not rich.

The solution of aiming the roof water hole at the opposite door;

You can invite a piece of Taishan Shi Gandang to build a brick in the rush position, which has the function of ward off evil spirits in the town house.

In fact, putting green plants at the door is to save money and solve the problem that money is easy to lose.

From the design point of view, it is better to open drainage pipes on the left and right sides of the door, which means it is better to open them on both sides.