Here in Wisconsin and Minnesota, Finnish settlers have set the bar high for hewn log construction. Finns are the ones who created the log cabin that we all envision. In this post I will discuss Finnish log homes, as well as how and why they were constructed. I will also give some examples of projects done on these original-style log homes illustrating some aspects of maintenance and repair of these structures. First I want to give you a description of what a hewn Finnish-style log home is.
Finnish dovetail hewn log structures are some of the most solid log buildings ever constructed. These buildings were all built with hand tools such as cross cut saws, broad-axes, mallets and different types of chisels. These were structures of necessity. Settlers needed shelter, often quickly, and they possessed the knowledge and the tools to build it. Logs were plentiful.
The first consideration of any builder is its actual location and what species of mature trees could be harvested near by. The quality of mature trees was a main deciding factor in where to build. Trees were harvested on site in most cases. The desired species of trees included White Pine, Hemlock, Eastern White Cedar, and Oak.
After felling and limbing the trees, the builder would immediately set out to hew (flatten the log) and shape the logs to start drying out the timber. This included cross cutting the logs to a certain depth and then broad axing the extra material away from the log creating a top flat and a bottom flat with rounded edges on the sides. This process would expose heartwood, which is the hardest, most rot-resistant part of the tree. This also opened up the log to air dry the center, thus reducing the possibility for extreme shrinkage later in the building’s life. Next it was time to lay out the corner dovetail joints. (more…)
