Finnlamelli log houses, constructed with care, balance the differences of internal and external air temperatures. Wood acts as a heat insulator and moisture regulator; therefore the air in log houses is easy to breathe. Due to clean indoor air, log houses are also an excellent option for people with allergies.
Massive log walls breathe naturally. They allow water vapour to move freely into and out of the wall structure. Indoor humidity remains constant and therefore it is easy to breathe in a log house. When relative humidity of indoor air is balanced, moulds and bacteria cannot grow.