Ventilation in windowless rooms

  • Erstellt am 2014-11-30 07:48:04

bambulko

2014-11-30 07:48:04
  • #1
Hello,

we have just built a Kfw70 prefabricated house. We do not have controlled residential ventilation, but ventilation was planned for all windowless rooms. This goes through the roof for interior rooms, and through the wall for the pantry.

In a small WC we have a fan (as you would expect), but the ventilation in the other rooms is simply a pipe going to the roof. In the pantry it is even just a roughly 10 cm hole in the wall, on which a plastic cap is supposed to be placed on both sides.

Is this normal? What use is the best insulation if we then have holes in the wall and to the roof? And doesn't that give underground values in the blower door test?
 

emer

2014-11-30 12:56:52
  • #2
What use is a new building with obviously so many rooms without windows? Something obviously went wrong with the planning of the floor plan.
 

bambulko

2014-11-30 13:21:58
  • #3
Why many? We have a pantry, a small WC, and in the [Einliegerwohnung] another storage room.
 

One00

2014-11-30 19:28:03
  • #4
Could it be that this is the venting of the water pipes and not a room ventilation?
 

bambulko

2014-11-30 22:33:49
  • #5
No. The plans clearly state room ventilation. As I said, in the pantry there is simply a roughly 10 cm hole in the wall where a plastic exhaust vent will be installed.
 

Bauexperte

2014-11-30 23:58:11
  • #6
Good evening,


Who sells/installs something like that?

Rhenish greetings
 

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