Carpenter Ants can sometimes be a problem if wood remains moist and wood rot occurs. If they are a problem, treat with PeneTreat or an approved insecticide. Also look for the cause of the moisture and try to eliminate it. Carpenter ants can enter a building by way of vegetation that may touch the building. To help prevent this, trim bushes and trees touching the building and watch for rotting stumps that could have rotting root systems underground near your building. Insects do not have to be a problem in your log home. Design your building to keep moisture away from it so that moist wood does not encourage insect problems. Stain additives such as Bug Juice or NBS 30 and wood treatments also help to deter problems.