Our house is situated in Bavaria. Our energy consultant confirmed that the main expensive roof beams could not be replaced and everything else could be re-insulated and covered.
There is also a plan for new glazing for the house.
The consultant advises triple glazing. But since we don't want to insulate the walls, we will definitely get mold after the new windows are installed, according to the consultant.
To avoid this we have two options:
— Install a ventilation system in each room through the outside wall. This means: drill a hole and install a fan (the worst option will probably be expensive and time consuming).
— Install windows with their own ventilation (would be interesting).
How did you solve the mold problem after installing the new windows and what does your ventilation look like?