If the sauna is planned as a separate room, not related to other buildings, it is necessary to seriously approach the choice of materials for supporting walls. It can be both brick and beam, there are many options. But it is best to use a tree - a material that passes the air and is famous for its thermal insulation. The supporting frame of the sauna has its own characteristics. To maintain the proper temperature from the outside, it is necessary to apply a heat insulator.
