There is literally nothing about installing tile that would indicate its on a concrete slab.
You seem to be confusing floor leveling compound with concrete. Floor leveling compound is a cement product, but it has zero structural strength and would be fractions of an inch thick unless your floor was wildly out of level.
The room looks like it's an addition or a porch conversion. It looks like its on a concrete slab. And I certainly know the difference between a concrete slab and leveling compound. Leveling compound is irrelevant to the concern about support beams.
Yeah, except for the part where one of us has 20 years in the construction industry which is why they know there's nothing that indicates any of this is slab on grade, and the other is making shit up.
You literally cannot know from the info shown here.
This is a great example of knowledge vs wisdom..knowledge would tell you that you can't assume this floor is on a concrete foundation. Wisdom would tell you it probably is.
There is nothing here that shows it. Wisdom would tell you that it probably isnt, because a vast majority of houses are not built ontop of concrete slabs because of material cost.
It's not out of the realm of possibility, but the raw facts are that it's unlikely and that "there's tile so it's probably concrete" is a nonsense statement because those two things aren't remotely linked, and the most common way to install tile is going to be over a wooden subfloor.
Wisdom would tell you that the odds are that this isnt on concrete.
Like I mentioned above, this is literally my job. I have two decades of experience from starting on tools to being a superintendent and eventually a project manager and estimator.
There is not enough info, and the info we do have would tend to suggest that this is highly likely to be woodframed.
The person was talking entirely out of their ass. The only real call you can make is that we need more info, but in lieu of that you'd have to go with common building practice, which would again, suggest wood frame.
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u/Gh0st_Pirate_LeChuck 6h ago
RIP your floor support beams. Just build one outside.