bidouille23 wrote:Otherwise question (again) before you break the insulation was there this phenomenon?
This is to find out where the water comes from
, personally, I would say that if you did not have the phenomenon before when the place was closed but not isolated, it is not because you put insulation that the problem appeared.
Ooooooops, I point that out, because it's powerfully reasoned!
It is far from trivial. Basically, each renovation site should be scrutinized WITH MAGNIFIER before finding the solutions "that go well". Because a good "inventory" is essential to understand how the construction behaves already - in the state - in its environment and with the fluctuations of temperature and degree of hygrometry (which it undergoes throughout. year), which often leave visible traces:
- trace / s of saltpeter, halo / s, change of color of the paint (or any other coating and even cement) in certain areas, peeling of the coating / s, crumbling / s, decay, difference in aging, dilation / s (or what do I know) causing cracks, sagging / s, oxidation, and of course air circulation which should not be done and / or trace / s of residual moisture. We understand better the usefulness of modern hygrometers which allow to measure the hygrometry rate inside a wall or a piece of wood, etc.
This is also why when we renovate, first we scrape, tear off, scrape, etc. all the suspect areas, widen the cracks to "hard", in short we put everything to the test. that falls or holds badly and it is systematically deleted ... if you do not want to start all over 3 months later ...!
bidouille23 wrote: So it is that the condensing water has been brought in, suddenly I repeat that the amount of water used to make the plasters must go away in the form of steam at a time ... so this excess is entangled water will solve the problem
Hence the observation of the above can lead to an amplifying effect, or on the contrary to a well thought out situation: therefore neutralization of the problem. Controlled and therefore controlled renovation. CQFD.