I am planning to renovate a bathroom and intend to move the bathroom so it ends up on two different foundations, crawl space and concrete slab. How do I prevent the waterproofing layer, self-leveling compound, and tiles from cracking? Is it possible to place a board under the self-leveling compound?
how much do you have to work on?
how high can you make the floor?
how high can you make the floor?
The cast slab, I estimate, is 5-10 cm lower than the crawl space. So it needs to be raised. Here, I was considering using foam plastic under the self-leveling compound. I wish to raise the crawl space as little as possible, as I already have a low ceiling height (214 cm).
I would prefer to cast cake that is dubbed
Do as SBH wrote, but first lower the crawl space at the wet room so it is at the same level as the slab or lower.
No point in taking chances; it involves a lot, both in terms of money and movements in the different foundations!
No point in taking chances; it involves a lot, both in terms of money and movements in the different foundations!
In detail, what does casting a studded slab mean? Reinforced? Or attached with "something" to the existing foundation? What is the estimated minimum possible height of this construction?
I should add that both foundations are from -91, so if it hasn't settled already,
I should add that both foundations are from -91, so if it hasn't settled already,
I think you have to assume that you will get small movements between the foundations. It will affect both the floor and the walls.Henrik Eriksson said:
I don't know what a doweled slab is. But I've heard that if you self-level about 25mm with reinforcement (then properly reinforcing mesh, with like 5mm wires). Such a slab should become self-supporting, you can even place it on a springy wooden floor. If you get significant movements, it will crack no matter how you do it. If, for example, the crawl space sinks 5mm, then obviously nothing will help. Except possibly a truly self-supporting concrete slab. But then we're talking about 10 - 20 cm thickness, unrealistic.
drilled rebars, reinforcing mesh, and good concrete. and then hope that the crack never comes.
but normally you don't want to have two slabs like that
but normally you don't want to have two slabs like that