Install Gap-Filling Lumber and Secure to Foundation

What happens here

To fill the gap between the existing house foundation and the newly constructed retaining wall, cut 2x10 pressure-treated lumber to size. Position these lumber pieces vertically against the house foundation, creating a continuous barrier. Secure the lumber to the foundation using L-brackets. First, use a hammer drill with a masonry bit to drill pilot holes into the concrete block foundation. Insert Tapcon screws through the L-brackets and into the pilot holes, fastening the lumber securely. Apply exterior-grade sealant along the edges of the lumber where it meets the foundation and the retaining wall blocks to prevent water intrusion. This step ensures a tight seal and prevents soil or water from seeping between the structures.

Goal: Create a weather-tight and secure connection between the retaining wall and the house foundation.