Hello!
I am in the process of renovating our 1.5-story house from '77 and have now removed the paneling (particle board) on some exterior walls. Behind the board was a black plastic, somewhat like sturdy garbage bags. It was not particularly tight as it was perforated by all sorts of things and with holes for electrical sockets. It also wasn't very tightly connected to the floor/ceiling.
The exterior walls are constructed as follows (from the outside in):
I see no signs of moisture in the insulation or the wood construction. My question is what I should use when rebuilding the wall? Should I use regular construction foil or a vapor barrier? The ventilation currently consists of natural ventilation with the bathroom fan running constantly.
Thank you very much in advance for the tips and advice!
But I belong to the school of letting houses breathe, especially older houses... modern very well-insulated or passive houses are another matter, where everything is built on the premise that no moisture should get into the insulation, but then it requires that no penetrations, etc., are made either.
