Q: What is Owens Corning recommendation to address termite concerns?
A: Follow applicable building codes in your area that have been designed to minimize the risk of infestation. Infestation is primarily a concern in California and in the southeastern United States that have been designated as having “very heavy” infestation probability. See Section 2603.8 of the 2006 International Building Code, and Section R320.5 of the 2006 International Residential Code for complete details on ground treatment, baiting systems, resistant wood, inspection spaces, physical barriers and shields, and exceptions for non-wood or pressure treated wood buildings, and for insulation placed inside foundation/basement walls.
Be wary of foam plastic boards that claim to be “insect resistant”. Many insect resistance treatment techniques rely on water soluble additives that become ineffective over time and after prolonged exposure to ground water. Also, termites may travel behind treated boards, between the board and the foundation wall. In that case, the board treatment cannot work, while the board shields the insect path of travel. Following code requirements for ground treatment, clearance and physical barriers is the best protection.