Foundation
The majority of the brick wall is constructed with over 100-year-old bricks that were salvaged when two chimneys were removed from the house.
![100 year old brick wall](https://seattleurbanoasis.com/wp-content/uploads/2023/08/IMG_0380-225x300.jpg)
The area in front of the concrete retaining wall needed to be cleared first. The old bricks all vary a little in size so the first three rows of bricks are cement to make the base more consistent.
![100 year old brick wall](https://seattleurbanoasis.com/wp-content/uploads/2023/08/IMG_0392-300x225.jpg)
Weep holes are present in all retaining walls and other ground-draining constructions. Weep holes provide a channel for drainage, allowing any moisture that might seep into the wall from behind it due to penetration, capillary action, or leakage.
In addition to acting as a ventilator, weep holes installed in brick masonry help prevent the formation of mold, dry rot, and moisture, all of which can reduce the lifespan and functionality of the retaining wall.
![weep hole cover - 100 year old brick wall](https://seattleurbanoasis.com/wp-content/uploads/2023/08/IMG_0398-300x225.jpg)
Pests like insects and rodents can get access through weep holes. Baffled vent installation can fix this problem. When I constructed the wall, I used a stainless steel weep hole cover.