How to Waterproof Concrete Brick
Ask This Old House mason Mark McCullough explains and demonstrates the benefits of waterproofing concrete brick
- Pour the waterproofing agent into the bucket.
- Dip the paint roller into the waterproofing agent and apply it generously to the brick, bottom to top.
- The agent will cure in 14 days.
Mark applied Siloxane 20 solvent-based water repellant, manufactured by Umaco.
Expert assistance for this segment was provided by MJM Masonry.