The breathing wall goes back to an over 100-year-old attempt to measure the air exchange rate in houses. After all the cracks and leaks were (supposedly) sealed, the air exchange rate did not change as previously calculated. The interpretation of the phenomenon—that the walls would therefore "breathe"—is simply incorrect; factors such as an unsealed stove were not taken into account in the calculation. It is a nice marketing image to talk about "breathing walls."
I already have trouble with statements like "the climate was fantastic" in the last post. What was so fantastic, or does it stink in other houses?
There are rooms where people prefer to stay rather than others. Some feel stuffy, others oppressive, other rooms feel fresh. That humans react differently to spatial conditions is undisputed, and in hot weather one will feel different in a sealed wooden box than in a Tupperware container. In addition, the air volume in the room is a factor for comfort. How someone describes this is usually not very scientific. It only stinks in houses if the air exchange rate is too low and/or there are odorous materials in the house. Sometimes it is just a new floor covering made of low-quality material—and a Tupperware container smells different even after years than a piece of wood.
Just explain to us why a wooden wall is climate-regulating in contrast to a target wall.
Both walls—if you don’t glue something onto them—would be able to participate in moisture balancing in the room. Neither wall would do so with a latex paint coating on the interior. So there are differences in the wall construction. Projecting this onto the load-bearing building material alone, of course, is quite superficial.
