Draw drainage in a concrete slab and perforated brick floor

[Andreas Kneg]

Hey

I have a question, I might buy a renovation project and I'm now reading in the construction documents that there are cast concrete slabs on top of hollow bricks in the floor. This is an apartment in a house from 1912 in central Stockholm. I didn't plan to renovate everything myself, but I'm curious about how difficult it will be to move the plumbing since I'm thinking of swapping the kitchen and bathroom locations. I've renovated turn-of-the-century buildings before, and then you just have to consider how the wooden beams are placed and reinforce any holes in them. But how do you even deal with concrete?

1 So I assume that the slab and bricks separate the floors, so there's no cavity for running plumbing?
2 Is it like you mill out the concrete and brick, then run the plumbing in the milled-out area and pour over it if you want to get the plumbing down into the floor with the right slope, etc.?
3 How complicated is it to do this, really? Do you need a structural engineer, etc., or do the builders know what they're doing? Is it simpler or more complicated than wooden beams?
4 Do you have more freedom to run plumbing in concrete than in wooden beams? I mean, in wood, you should preferably avoid going through too many beams and making too many cuts. But in concrete??

So in short, will it be a nightmare to move the kitchen and bathroom, or the same as a turn-of-the-century building, or easier?

Thanks!

 

[Andreas Kneg]

Bumping this. Is there really no one who has any insight at all, or is it the wrong forum I've posted in?

Hey

I have a question, possibly buying a renovation project and reading in the building documents that there are cast concrete slabs on top of hollow brick in the floor. This is an apartment in a building from 1912 in Stockholm city. I'm not planning to renovate everything myself but became a bit concerned about how difficult it will be to move plumbing since I'm planning to switch the location of the kitchen and bathroom. I have renovated turn-of-the-century apartments before and then it's just a matter of thinking about how the wooden beams run and reinforcing any holes in them. But how do you even deal with concrete?

1 So I assume that the slab and brick is what separates the floors, so there's no cavity to run plumbing in?
2 Is it the case that you mill into the concrete and brick, then run the plumbing in the milled-out section and pour new concrete on top if you want to get the plumbing into the floor with the right slope, etc.
3 How complicated is it to actually do this, do you need a structural engineer, etc., or do the builders have it figured out? Is it easier or more complicated than wooden joists?
4 Do you have more freedom to run plumbing in concrete than in wooden joists? In wood, you should preferably avoid going through too many beams and making too many cutouts. But in concrete??

So briefly, will it be a nightmare to move the kitchen and bathroom, or is it the same as a turn-of-the-century apartment or easier?

Thanks!

 

[jonaserik]

No answer, it is not advisable to cut into the concrete or the brick, the latter can certainly be done, but you must contact the board to possibly get a go-ahead.

 

[Andreas Kneg]

Hello

I understand that I need the board's approval, but renovations are done all the time in apartments built in this way, right?