I see painted log homes all over Texas. Usually a painted house is a sign that someone was overwhelmed by log home maintenance. It is commonly used as a short cut to properly staining or fixing log rot. It seems to cover the rot and problem areas for the time being. Painting logs is one of the worst mistakes you can make. Paint will seal the logs up so well that they will hold water for days. This accelerates rot to a whole new level. Standard siding and dimensional lumber do

This is a method that we use to offer a second barrier to moisture leakage into log check marks.