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They usually do it for avoiding condensation, hence mold. New german buildings are very well insulated (sometimes too much) so you gotta move that condensation
by tecleandor 1y ago
They usually do it for avoiding condensation, hence mold. New german buildings are very well insulated (sometimes too much) so you gotta move that condensation humidity.
- ted_dunning 1y agoIt helps a lot with CO2 accumulation as well which is a problem in a tight house.