How to install the skeleton of the tile roof type inner floor structure ceiling decoration?

Generally, it is a rigid waterproof casing, which depends on the design.

Both the raising board and the picking of sorghum work, in comparison, the role of picking sorghum is great!

It's best not to remodel, because you don't necessarily know the original structure. If the slab is lowered by beams, it can be changed to the top and re-poured the floor slab. If not, try not to change it. In order to avoid potential quality and safety hazards.

The sunken bathroom floor can be knocked and made as a staircase, so that it does not affect the pharmaceutical structure, and if there is no problem with the load-bearing capacity, it is completely okay without damage.

Yes, but it doesn't necessarily solve the water leak problem. The reason is not necessarily due to a leaking sewer pipe.