Water ingress through the ventilation system, what to do, liability?

I do not find that so clear and hear of such a case for the first time. That little storm is nothing unusual, one would think the devices can withstand such an event?

Are only devices on a certain side of the building affected?

I have read the installation manual of the Lunos e2 as an example. It contains information about the cover caps, which are splash rain proof. In exposed locations, "if necessary, additional weather protection measures" are required. Heavy rain is mentioned.

However, the pipe that is inserted into the core drill hole must be "sealed on all sides" and (of course) installed with a slope outward. One could do something wrong there.

Have a specialist come to look at the installation or put the weather protection caps on and that's it.

I would guess that this is just personal bad luck. If the hurricane had blown your roof off, the roofer (with properly done work) would not be to blame either. Was the ventilation system installed properly or are there construction defects? Sounds like "no" to me in your case.

Yep! I see it that way too. The terms "builder" and "construction company" confused me.

Hello,
Thank you for the feedback. It is exclusively the ventilation systems on the weather side. After yesterday's storm, the walls inside were wet again, despite the weather protection covers -.-
Couldn't the construction company have done something beforehand or at least had to point out such a possibility?

Couldn't the construction company have done something beforehand or at least had to point out such a possibility?

Did the roofer point out that roof tiles can be blown away in a storm? Or the bed seller that the bed could catch fire if you fall asleep with a cigarette? Or the kitchen seller that the drain can clog if you just flush food scraps down the drain? Etc. You really are a sweetheart...

Unobjective comments certainly don't help at all. No idea what your problem is, I lay out my questions and concerns here and receive mockery? Not bad, respect. I thank those who simply wanted to give me advice in a factual manner and can accept that I am not an expert. I thought this was a forum with grown-ups, my mistake.