We advise that you respect the 5mm expansion joint in all circumstances. With an expansion joint of 5mm it is possible to place the Floorify rigid vinyl floors and floor tiles without the usage of profiles. Condition here is that there is not a big temperature difference between the different rooms. Also extremely heavy loads (such as a grand piano) that can block the floor, should be avoided. In contrast with laminate, you can easily place the Floorify floors between different rooms without the use of profiles.