Section R318 Protection Against Subterranean Termites
In areas subject to damage from termites as indicated by Table R301.2(1), protection shall be by one, or a combination, of the following methods:
- Chemical termiticide treatment in accordance with Section R318.2.
- Termite-baiting system installed and maintained in accordance with the label.
- Pressure-preservative-treated wood in accordance with the provisions of Section R317.1.
- Naturally durable termite-resistant wood.
- Physical barriers in accordance with Section R318.3 and used in locations as specified in Section R317.1.
- Cold-formed steel framing in accordance with Sections R505.2.1 and R603.2.1.
In areas where the probability of termite infestation is "very heavy" as indicated in Figure R301.2(7), extruded and expanded polystyrene, polyisocyanurate and other foam plastics shall not be installed on the exterior face or under interior or exterior foundation walls or slab foundations located below grade. The clearance between foam plastics installed above grade and exposed earth shall be not less than 6 inches (152 mm).
- Buildings where the structural members of walls, floors, ceilings and roofs are entirely of noncombustible materials or pressure-preservative-treated wood.
- Where in addition to the requirements of Section R318.1, an approved method of protecting the foam plastic and structure from subterranean termite damage is used.
- On the interior side of basement walls.