Our bathroom floor upstairs has settled significantly (about 1.5cm), and I am worried that it will continue to do so slowly. This is due to the drainage/pipe installations along the wall in the 50s, which resulted in the floor joists being cut off and "hung" using "iron profiles" on a transverse load-bearing structure.
Something has now happened with this construction. Unfortunately, we did not investigate this when we renovated the bathroom with self-leveling compound, underfloor heating, and tiles. What should we do? I am considering building a custom bookcase in the living room below to "support" this part of the floor that is giving way. Am I thinking correctly, and if so, are there any good tips for constructing this bookcase?
Many thanks in advance!
Something has now happened with this construction. Unfortunately, we did not investigate this when we renovated the bathroom with self-leveling compound, underfloor heating, and tiles. What should we do? I am considering building a custom bookcase in the living room below to "support" this part of the floor that is giving way. Am I thinking correctly, and if so, are there any good tips for constructing this bookcase?
Many thanks in advance!
If the floor has sunk - What has happened to the walls then? If they haven't moved, there is a significant risk that the waterproofing membrane is cracked at the floor/wall angle and the bathroom will need to be redone. Sour.
I would have started by removing the grout in the corner and tried to determine whether the waterproofing membrane is intact or not before proceeding.
I would have started by removing the grout in the corner and tried to determine whether the waterproofing membrane is intact or not before proceeding.
The thing is that the floor had already settled before we renovated the bathroom. It may have sunk a millimeter, but I hope/believe the waterproofing membrane hasn't been damaged. On the other hand, this is on a floor area that won't have water on it (even if it is a bathroom 
). However, a good point!
). However, a good point!ACME said:
You mention that the floor had settled before the bathroom renovation. Didn't you check what the floor structure looked like then? Do you know when it settled and why? Are you sure it's due to the reinforced beams? It sounds like your house is old; sloping floors and ceilings in older houses are not uncommon. In my limestone house from the mid-1800s, the ceiling height varies by about 12 cm in the living room. When I built up for a bathroom floor, there was a significant difference in the height of the floor joists. Old houses look like this. But if you still see movements, it might be more serious, and if the floor has sunk one or a couple of millimeters since you did the bathroom, you likely have a problem. If you're unsure, either open up and inspect or get a structural engineer. It's tough to say anything without knowing more.Coronet said:
Tompa