Here you can see me securing the first round of logs to the cabin floor and laying insulation between the logs.

Overtime as the logs dry and shrink, small gaps may or may not develop. The fiberglass insulation is not really acting as a typical insulator, it is performing the duty of preventing air flow from penetrating the interior of the cabin.

Traditionally materials like moss, mud or home brewed chinking ( mixture of mud, clay, grass, and moss) were used to fill any gaps between the logs.