There are multiple reasons for possible air infiltration in log homes. Wood is a hygroscopic material, meaning it always will gain and lose moisture, therefore, there are opportunities for gaps to form between your logs. Most log home companies have adequate sealing systems between the logs, however, there are times when the sealing system will fail. In these cases Log Building Maintenance and Restoration has the capability to diagnose air infiltration and provide solutions. Most of the time these failures are at the log-to-log connections and they can easily be caulked on the exterior. In rare cases, a check will form that may allow air infiltration from the outside to the inside of the home. In these cases Log Building Maintenance and Restoration uses a backing rod and caulk system.