Waterproofing Systems

Waterproofing is the process of making a building's structure water-resistant so that it remains relatively unaffected by the ingress of water under specified conditions which can cause expensive and irreversible damage to the building.

Waterproofing Systems

It is mostly invisible after construction is completed. Every day the structure of a building is exposed to intense fluctuations in moisture levels and temperatures, resulting in problems such as mold and rot, corrosion and degradation, leaking and damage, all contributing to its deterioration.

Our team's hands-on experience and know-how of the most up-to-date waterproofing system solutions and application techniques is a key added value for your next project. Count on BuildIn to provide long-lasting waterproof systems to protect your constructions. Waterproofing Solutions include:

1. Sheet Waterproofing Membrane

Sheet membrane systems are reliable and durable thermoplastic waterproofing solutions that can fulfill the requirements of even the most demanding below-ground structures, including those exposed to highly aggressive ground conditions and stress. Sheet membrane systems are designed to withstand exposure and stress extremes such as:

  • High level of water pressure 
  • Aggressive groundwater containing chemicals (sulfates and chlorides in solution) 
  • Unequal static forces due to settlements or uplift 
  • Dynamic forces due to earthquakes


  • Below-grade Areas, Basements and other concrete structures
  • Tunnels 
  • Pools 
  • Drinking and Clean Water Storage 
  • Ponds 
  • Tank Linings

2. Injections

Injection is a procedure of pumping cement-based, polyurethane-based, epoxy-based or acrylate-based material where the structural integrity of concrete has been compromised. Injection resins securely fill and seal cracks and voids that have occurred from corrosion or damage during seismic activity and physical impact to re-establish the load bearing capacity and structural integrity which make the structure watertight again for the long term.


Injection Materials

  • Polyurethane Foam Resins

Polyurethane foaming resins are designed to expand with water to temporarily block the passage of water through the crack or void. Their fast expansive reaction with water forms a tough and flexible elastic foam. For permanent waterproofing, these polyurethane foaming resins are re-injected with a suitable non-foaming injection resin, usually also based on polyurethane.

  • Polyurethane Resins

Polyurethane resins are hydrophobic, flexible and used for non-structural injection sealing and waterproofing voids, cracks and joints. Their low viscosity allows good penetration into the concrete structure to seal leaks and achieve a durable elastic seal. Polyurethane resins seal with very strong edge adhesion to concrete and have hydrophobic characteristics. In voids, cracks and joints with high water ingress, pre-injection as temporary water stopping with a polyurethane foaming resin is required.

  • Acrylate Resins

Acrylate resins are hydrophilic, very flexible and used for non-structural injection of cracks, joints and voids, including injection hose systems, compartment systems and area injections (e.g. grid and curtain). During application, acrylate resins have extremely low viscosity (similar to water) and therefore have ideal penetration abilities. Their reaction or hardening time is also adjustable, which allows flexibility to adapt the injection material to the prevailing conditions on site (temperature and injection distance, for example). Acrylate resin-based materials seal and waterproof leaks through their hydrophilic swelling behavior in contact with water. The injection equipment is also easily cleaned with water.

  • Epoxy Resins

Epoxy resins have relatively high tensile and compressive strengths in relation to concrete. They are generally regarded as ‘rigid’ materials and are widely used for structural repairs by injecting cracks and voids in load bearing reinforced concrete structures or elements. Their low viscosity allows excellent penetration into cracks and strong adhesion to concrete, which helps to ensure permanent and durable load transfer. Epoxy resin-based materials are suitable for many different structural injection requirements and applications in dry to slightly damp conditions.

  • Microfine Cement Suspension

Microfine cement suspensions are non-flexible and therefore non-movement-accommodating, rigid, polymer-modified, injection materials. Also known as microfine cement grouts, they are based on blended microfine cement. They are now widely used for structural injection to seal non-moving cracks, voids and construction joints. Due to their polymer modification, these cement-based materials can also have high flow characteristics and very good penetration ability.

3. Waterproofing Mortars

Waterproofing Mortar can be used to waterproof interior and exterior concrete, masonry and brick surfaces—both above and below grade. They are used to protect structures against water infiltration. They also provide solutions to seal against damp soil, seepage and percolating water. Waterproofing Mortar contributes to LEED credits for its ability to reduce a project’s carbon footprint and environmental impact.


  • Below-Grade Structures and Basements 
  • Balconies and Terraces 
  • Swimming Pools 
  • Wet Rooms and Bathrooms
  • Bridges 
  • Tanks and Reservoirs 
  • Podiums 
  • Bridge Decks 
  • Tank Lining 
  • Wet Rooms

4. Bituminous Membrane

Bitumen, also known as asphalt, is a sticky, black and highly viscous liquid or semi-solid form of petroleum. It is widely used in construction as it has an exceptionally long lifespan. Bituminous membranes are suitable for waterproofing roofs, basements, below-ground structures, bridges and other structures.


  • Flat Roofs 
  • Pitched Roofs 
  • Basements 
  • Podiums 
  • Terraces 
  • Green Roofs 
  • Below-Grade Structures 
  • Bridge Decks 
  • Tank Lining 
  • Parking Levels 
  • Roof Renovations

To know more about our services, checkout our projects or get in touch with our experts.