"As I said before, joint timber building has very good heat qualities, which is needed in the Scandinavian climate. Accordingly, one would expect the Scandinavians to be quick to adopt a solid building technique which would also save much work with wood cutting for heating. And they did so at last, and the heat qualities were certainly an essential reason for joint timber building dominating in Scandinavia for about 900 years. But they did not adopt it until such a long time had passed as 200 years. Why? I suggest the reason for the delay was cultural. The Scandinavians readily adopted foreign dress fashion and consumer goods, but not so readily foreign housing. They probably had much of their identity in the houses, especially in their dwellings. The house shows who is the owner, and for the Vikings an old family was important. So a traditional Viking long house could be associated with an old and impressing family. In addition, for the Vikings their house was a sacred place and had a religious dimension. Such things made the housing more conservative than other cultural features. There are theories, expressed by Rapoport, about socio-cultural factors having a considerable impact on house form, and about house form having a considerable degree of constancy due to culturally linked aspects. These theories point in the same direction as my suggestion. Towards the end of the 10th century, the cultural difference between the Scandinavian and Slavic peoples decreased. (My comment: This happened due to a long period of political cooperation and cultural and physical mixing (intermarrying) between the Scandinavians and the Slavs. This eventually lead to the large Slavic settlement in Scandinavia and equally large Scandinavian settlement in the Slavic countries). Eventually they both—or at least parts of them—converted to Christianity. All this probably made the Scandinavians more ready to adopt the Slavic joint timber house building tradition. "
But once the Scandinavians did start making log cabins, they made them their own, to the point when today everyone thinks that joint timber log cabins are a native Scandinavian tradition. So much so that today even Slavs believe that they borrowed the technology for building their own joint timber log cabins from Scandinavians. Funny how things like this happen.
The below picture shows a typical joint timber log cabin from Scandinavia (Stockholm). Please note that it uses the same horizontal beam joining constriction technique like the first hose from Serbia that I showed above.