Kevin from Billings Montana writes
In the majority of houses and structures the wood termites would be seeking is water damaged wood and is typically located around window and door casings or exterior walls where water may have breached. The 6x6 trench is flooded with solution that actually gets quite deep in the soil. As the termites are searching for food they typically come nearer to the surface of the soil and are very likely to pass through the treated area. Since the most likely place for termites to find the moisture ridden wood is on the exterior, they would normally contact the treated areas (aka trenched areas). That being said, it is still possible for termites to come up underneath slabs if the water damaged wood is contained in say an interior bathroom. This is the exact reason it is recommended that your home be inspected for termites every two years.
Answer last updated on: 03/26/2014