Minnesota is known for its variable climate, including a certain level of humidity. This humidity factor plays a crucial role in determining the choice of sauna materials.
The high humidity in Minnesota can have a significant impact on the durability and performance of sauna materials. When choosing wood for the sauna interior, one needs to consider species that can withstand the moisture. Woods like cedar and hemlock are popular choices as they are naturally resistant to rot and decay caused by humidity. Cedar, for example, has natural oils that help repel moisture and insects, making it an ideal material for a sauna in a humid climate like Minnesota.
In addition to wood, the choice of rocks for the sauna stove also matters. In a humid environment, certain types of rocks can absorb moisture and affect the heating efficiency. Basalt rocks are often preferred as they can hold heat well and are less likely to be affected by humidity.
The insulation materials used in the sauna construction also need to be carefully selected. Materials that are moisture-resistant and can prevent condensation from forming are essential. Foam insulation with a vapor barrier can help keep the sauna dry and maintain its temperature efficiently.
Moreover, the choice of benches and flooring materials should take humidity into account. Benches made of materials that are not prone to warping or cracking due to moisture, such as teak or thermally modified wood, are better options. For flooring, non-slip and moisture-resistant materials like rubber mats or ceramic tiles can provide safety and durability.