We recently bought a log cabin with rough hewn (flat sided)logs with wide chinking (synthetic, I assume) inside and outside. Some of the backer material is coming loose at the seams and in some areas, it is lifting out. It looks like fiberboard strips! Is this acceptable? Do I need to remove it all and redo it? Unfortunately, previous owners used silicone caulk on the seams. Some areas seems spongy. I have now idea type of stain or chinking. Opinion please. Thank you.
The fiber board backer is common with this type of log. You shouldn’t have to remove it all. You should remove the loose area’s and repair. Call Dave at 800-564-2987 for help with materials needed. He will be able to turn you on to color charts and send small tubes to test color with. You should remove all of that silicone and replace if needed with Energy Seal.