ᐅ From when does the structural shell need to be dry or weather-tight?

We built on a slope. The shell of the building is complete, meaning the roof and windows are installed. The plasterer is currently working, and the screed will be done next.

Today, after heavy rain, I noticed water ingress at one corner on the ground floor.

Shouldn't the shell already be weatherproof? Or only once the screed is in place?

I am really frustrated, as you can tell from the time.

Once the roof is on, in my opinion, it should be watertight. Are there dormers or other typical critical areas above?
Be glad that it is noticed now and not later.
It was the same for us.

When I think about our construction... no, it doesn’t need to be weather-tight yet. There can still be gaps and holes in the masonry where heavy wind might allow rain inside. It should only be truly sealed once the insulation is installed. But I'm not an expert on this.

The wall borders the garage and then continues into the ground. In other words, there will be a lot happening there.
The site is on a slope.

However, the garage roof has not yet been waterproofed.

Contact construction companies and discuss with them.

Evolith schrieb:
When I think about our build... no, it doesn’t have to be completely airtight yet. There can still be cracks and holes in the blocks where heavy wind-driven rain might get in. It should only be truly sealed once the insulation is installed. But I’m not an expert.

That looks like Poroton blocks. So, only the exterior render would be applied from the outside. What kind of insulation then? Good to see something like this, I’ll pay more attention to that in my own project.