R. B. Hash & Associates, Inc. understands the importance of maintaining the integrity of our client’s structure and has the waterproofing systems to ensure long-term sustainability. Waterproofing is the prevention of water or moisture penetrating a building’s envelope, which can occur through the facade or any opening, such as at the windows and doors of a structure.

R. B. Hash & Associates, Inc.’s professional waterproofing services include the installation of waterproofing materials that prevent water penetration in buildings, roofs, and parking garages. Our comprehensive waterproofing and caulking services, whether reactive or preventative, will improve the integrity of our client’s new or existing structure, extending its life.


Above/Below Grade Waterproofing Systems

  • Bentonite Waterproofing Membranes
  • Crystalline Concrete Waterproofing
  • Cold Applied Membranes
  • Self-Adhering Sheet Membranes
  • Positive and Negative Side Systems

Exterior Building Coatings / Aesthetic Coatings / Waterproof Coatings

  • Clear Water Repellants
  • Elastomeric Exterior Wall Coatings
  • Epoxy Floor Coatings

Waterproofing Sealants

  • Silicone Sealants
  • Urethane Sealants
  • Epoxy Security Sealants
  • Firestop Sealants


Expansion Joints

  • Building Vertical / Horizontal
  • Seismic Vertical / Horizontal

Parking Garage Restoration

  • Concrete Restoration
  • Expansion Joints
  • Parking Garage Specialty Expansion Joints
  • Vehicular Traffic Coatings
  • Pedestrian Traffic Coatings
  • Sealants

Masonry Brick Restoration

  • Brick Replacement
  • Tuck Pointing
  • Terra-Cotta and Stone Repairs
  • Thru-Wall Flashing Repairs
  • Wall Stabilization Systems