Insulating a log house that has no chinking

I have a 2 story log home that’s at least 150 years old in Maryland. First floor has exposed logs and chinking, 2nd floor is still log construction that was… I have a 2 story log home that’s at least 150 years old in Maryland. First floor has exposed logs and chinking, 2nd floor is still log construction that was…Read MoreGreenBuildingAdvisor