Yes, I have two of these problems in my house. Ceramic plates that touch the external wall, acting as 5 square meters cold radiator in the entry hallway and a fan with inverse flow hinges that get stuck when the wind from outside counters my inside fan. In some "special" winter mornings, my bathroom is naturally ventilated.

I actually want to see how I can make it and others public domain. It bugged me beyond reason to not be able to use one of the quintillion images of a wall sandwich :(