I have a 30-year-old Älvsbyhus that was originally built with a porch as an entrance. I have never liked this porch as it creates a dark and uninviting entry to the house. Therefore, I have converted the entire porch into a vestibule and moved the front door outward, but still have a glazed inner door where the old front door was located. This has now provided me with a bright and good entrance area and additionally about 6 m2 more living space. The problem that remains, however, is that I have utilized three walls that were previously exterior walls and are now interior walls equipped with MDF panels on the cladding. The fourth wall, the one with the front door, is newly built and fully insulated with a moisture barrier on the inside and a wind barrier on the outside. I chose not to equip the three former exterior walls with a moisture barrier since there is naturally one on the other side of these walls, and this would have enclosed the walls with plastic on both sides. The question is, do I always need to maintain a lower temperature in this new space than the temperatures on the other sides of the walls to prevent moisture migration in these walls? One of these walls faces the garage, where it is normally about 12-15 degrees during winter, while the other walls face areas with normal room temperature.
