1-2 The second floor is a high-rise shop. I bought the third floor. The platform on the top floor of the shop outside the balcony is about 30cm higher than the floor of the house. Is the design okay?

Let's take a look at the details of the nodes in the relevant positions. The first picture shows that the outdoor platform floor is lower than the elevation of the three-story indoor board, and the roof needs to be insulated, waterproof, sloping and protected. The finished surface is flush with the room on the third floor. The second picture shows that the outdoor platform floor is flush with the third floor indoor floor. Of course, after the roof is insulated and waterproof, it is higher than the indoor height (about 300~400). There is no problem with the two design methods, and both meet the needs of normal design.

Of course, the problem of water leakage is that there is something wrong with the waterproof head, or the local slope is not well drained, resulting in water accumulation near your home, which can also lead to water leakage or long hair on the wall.

As for other buildings, it was finally found that the ground was flush with the outside, because the design standards were not uniform. One building has considered lowering the slab, and the other building has not, but the joints of waterproof walls should be the same.