Kim from United States writes
The gap is between the foundation an a cement walkway. I plan to place backer rod and sikaflex to fill the gap. Would the treatment be effective if I placed it on the opposite side of the cement walkway (side not up against house)?
We would reommend drilling through the gap or 3 inches away from the foundation of your home. Holes should be spaced 12 inches apart and drill holes should be a minimum of 6 inches deep below the cooncrete. Concrete is typically 3-4 inches in depth, therefore, you wold need to drill a total of 10-12 inches.
Answer last updated on: 04/17/2015
