ᐅ Connect basement rooms to the central ventilation system?

Initial situation:
New construction KFW 55
Two full floors (152 m2 (1636 sq ft))
Basement area currently not available.
The basement is built with waterproof concrete (WU concrete) and will be used as a utility basement, not as living space.
The basement is an open design, meaning there is no door between the ground floor and basement. The insulated building envelope extends from the upper floor ceiling down to the basement floor. Therefore, the basement is included within the insulated building envelope.

A central ventilation system will be installed. The unit is planned to be set up in the basement.
Now the question arises whether the basement rooms should be connected to the ventilation system or not.

Does anyone have suggestions? How do others handle this? What are the advantages and disadvantages of including the basement? How should basement rooms be ventilated?
It would be somewhat cheaper to exclude the basement, but we cannot think of other reasons. Perhaps someone can help us make this decision easier.

Thank you.

I would include the basement in the ventilation system. Exactly how depends on the intended use of the space (considered individually for each room). What does the ventilation specialist say about this?

Hello,

Runner schrieb:
Does anyone have suggestions for this? How do others handle it? What are the pros and cons of integrating it? How should basement rooms be ventilated?

Of course, basement rooms need to be ventilated, especially those... If you are installing a ventilation system anyway, the additional costs are negligible. On the contrary, by installing ventilation, you might be able to do without basement windows and ultimately save money.

But how am I supposed to imagine that “without a door between the ground floor and basement”?
Ventilation units do generate some noise, as do heating systems, washing machines, dryers, etc. And then no door????

Best regards,

Andreas

andimann schrieb:
When installing ventilation, you might be able to skip basement windows and ultimately save money.

Interesting idea.
However, it might lead to additional costs for construction drying, since drying units and/or fans would probably be needed, right?

andimann schrieb:
But how should I imagine that "no door between the ground floor and basement"?
The ventilation units do produce some noise, as do the heating system, washing machine, dryer, etc. And then no door?????

A basement isn’t just one large room. I think he meant no door at the stairway, but certainly a door to, for example, the boiler room or similar.

...for those considering ventilation in the basement... might as well include a few underfloor heating pipes as well... it doesn't add much to the cost.

Hello, we did it this way but only for two rooms: supply air in the heating room and exhaust air in the utility room. Additional costs were about 150-200€ for some spiral ducting and two ventilation valves. It works and helps with drying laundry. I had an overflow opening built between the two rooms. The entire basement has very low humidity.