Crack in the concrete floor slab

Hello everyone,

I bought a house from 1959.
When we removed the screed of the ceiling between the ground floor and the upper floor, a crack became visible.
It runs almost exactly along the wall below it.
Can one already make a statement about whether it is dangerous or not?

Best regards
Robin

Can one already make a statement about whether it is dangerous or not?

1. Only with a structural engineer
2. If the house is from ’59, then there probably won’t be a problem.

Choose a suitable answer (I am a pragmatist and would personally choose No. 2).

1. Only with a structural engineer
2. If the house is from '59, then there probably won't be a problem.

Choose a suitable answer (I am a pragmatist and would personally choose No. 2).

I wanted to avoid the "close your eyes and get through it" approach. Visually it doesn't bother me since there will be a floating floor heating system there. But if it's already open and visible, one can consider whether something should be done. Now would be the only time that fits. I have already asked a structural engineer who said he is not responsible for that. A building surveyor would have to come.

This runs almost exactly along the wall underneath.

Do you have a reinforcement plan from the house documents?
Maybe the ceiling consists of two elements that meet at this crack and rest on the wall.

Can one already make a statement about whether it is dangerous or not?

No, someone on site who is knowledgeable about this needs to take a look.

I have seen much worse. Just have a professional take a look if you think it is necessary. To me, it looks like the usual settlement and stress cracks. I don't think it is that serious.

I wouldn’t have even noticed the mini thing ;).