I live in a 100yr old log cabin. Mold is growing on the panelling in the upstairs loft. What can I put on the outside logs to prevent moisture from coming inside and collecting, to dry out the wall?
It sounds like it needs to be re-chinked. Not sure what you have on the exterior now, but a coat of new latex chinking would probably help. Call Mike at 866-670-3020 for a rough estimate if you need to contract it..