Waterproofing & Leak Sealing
Creates watertight barriers around structures
solutionsmoisture barrier
Moisture Barrier
What is a Moisture Barrier?
A moisture barrier is an underground seal created to block groundwater infiltration and protect below-grade structures. Using trenchless polymer injection, watertight barriers are formed around basements, tunnels, and utilities, preventing leaks and long-term water damage.
Problems Solved
- Groundwater infiltration through walls, slabs, and joints
- Moisture damage to basements, tunnels, and underground assets
- Soil erosion and voids forming from water migration
- Structural weakening caused by hydrostatic pressure
- Costly excavation and disruption from traditional barrier systems
Types of Polymers Used
High-Density Polyurethane Foams
- Expands to densify and stabilize loose backfill soils
- Provides lightweight reinforcement without added soil pressure
- Cures rapidly to minimize operational disruption
Structural Polyurethane Resins
- Creates rigid reinforcement zones behind walls and utilities
- Transfers structural loads to stable ground layers
- Extends service life of supported structures
Hydro-Insensitive Polymers
- Expands and cures in wet or groundwater conditions
- Seals voids and prevents erosion in saturated soils
- Provides long-term durability in challenging sites
Benefits of Moisture Barriers
Moisture barriers with polymer injection provide trenchless protection from groundwater infiltration. These solutions extend the life of underground structures while reducing costly maintenance.
Watertight Protection for Underground Structures
- Blocks groundwater infiltration and soil erosion
- Creates watertight barriers without excavation
- Protects below-grade structures from hydrostatic pressure
- Extends service life of basements, tunnels, and utilities
Key Applications
Basements & Foundations
Seals groundwater infiltration around building foundations
Tunnels & Transit Systems
Provides watertight protection for underground transit assets
Utility Vaults
Blocks infiltration and protects buried infrastructure
Parking Garages
Stops leaks in below-grade commercial garages
Storm water Structures
Protects culverts, drains, and basins from infiltration
Industrial Facilities
Provides moisture control in critical subsurface structures
Services
Moisture barrier solutions are supported by these services:
Soil Stabilization
Soil Stabilization
Reinforces soils impacted by water migration
Void Filling
Void Filling
Eliminates cavities contributing to infiltration risks
Chemical Grouting
Chemical Grouting
Seals seepage paths and densifies soils to block groundwater flow
Structural Reinforcement
Structural Reinforcement
Strengthens below-grade facilities
Curtain Grouting
Curtain Grouting
Forms external barriers to stop infiltration and protect subsurface assets
How the Process Works
1
Investigation
Sites inspected for groundwater infiltration and soil voids
2
Planning
Barrier design developed based on soil and hydrostatic conditions
3
Access
Small-diameter injection points installed with minimal surface impact
4
Injection
Expanding polymers form watertight underground barriers
5
Monitoring
Placement tracked in real time to ensure continuous coverage
6
Validation
Final inspection confirms watertight barrier effectiveness
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