In our house the roof and suspended ceiling are insulated, the quality of the vapor barrier between the upper floor and the roof is mediocre.
The KWL is inside the roof. Our planner thought it was a good idea, and apparently it's not really unusual. In hindsight, though, I would have done things differently.
How do you recognize damage and how do you prevent it? Are there humidity limits or something similar that I have to observe?
I could easily vent the attic through the KWL, but the KWL has a moisture recovery feature. Does that make sense?