This project we removed half of the log 2-feet from the stem wall. The construction of this home was built with  logs being vertical in stead of horizontal. This caused the water to wick up at the bottom of the log and rot. we removed the rot from the bottom of the log and cut back cut back 3 1/2 inches in to the log. We then framed the area removed and treated the area with a wood preservative. The framed area was insulated and hard-plank installed and rocked.