Shrinking wood may deform and cracks may show up, thus it is of key importance to try and avoid this. If the interior of the sauna seems very dry, leave a couple of buckets filled with water inside. As the water evaporates, the wood will absorb it. It is also recommended to water the exterior of the sauna from time to time as well, which can be done by pouring a couple of buckets of water on the exterior walls.

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