Description
This project involved waterproofing a building foundation that formed the exterior perimeter of a tunnel system that provided air return to a number of HVAC systems throughout the building. These tunnels were originally formed by casting a concrete “trough”; the perimeter being the building foundation with the “floor” and “interior wall” being separate components. The exterior perimeter foundation wall was waterproofed only on the inside by application of a tar-like coating. The finished foundational “tunnels” were approximately 2 feet tall and 3 feet wide and extended up to 175 feet. Water intrusions were present in several areas with standing water present.
Products Used
The contract involved cleaning, waterproofing and protecting the tunnel components from further water intrusion and water damage. The concrete walls and floors were waterproofed with PENETRON, all penetrations and non-moving joints were packed with PENECRETE MORTAR. The project was completed under budget thanks to the performance of the PENETRON products.
