What is the purpose of a cove or cant strip at a foundation joint?

• A. Deflect water from the foundation wall
• B. Provide extra insulation
• C. Support lateral loads
• D. Serve as decorative trim

Answer: (A)

A cove or cant strip at a foundation joint is used to direct water away from the joint between the wall and footing. The curved or beveled transition creates a smoother path for water to shed down and away, which helps prevent water from pooling at the joint, reduces capillary wicking into the wall, and makes waterproofing details easier to seal. The shape also avoids sharp corners that can crack or leak, improving the durability of the foundation. It’s not primarily for insulation, structural support for lateral loads, or decoration.