To define the appropriate waterproofing strategy and type of system for a specific project, it is important to consider not only the ground conditions but also the project requirements of the owner. The functionality and future use, service life and the total cost of ownership should also be considered.


Basic Utility

IE-Car Park-Dublin Terminal 2

Some seepage and damp areas tolerable*

  • Underground car parks
  • Plant rooms
  • Workshops

* Dependent on use

Better Utility

Clean white industrial plant interior floor with machines and equipment

No water penetration. Ventilation may be required

  • Underground car parks
  • Storage areas
  • Workshops
  • Electrical plant rooms


Indoor tennis floor by Sika

No water penetration, totally dry environment

  • Ventilated residential units and offices
  • Restaurants and commercial areas
  • Leisure facilities
Additional Requirements (formerly Grade 4)
Residential dining room kitchen interior finishing wood floor

As Grade 3 plus: Consider internal environment required

  • Air conditioning
  • Ventilation
  • Radon and methane protection
  • Residential areas
  • Computer rooms
  • Archives
  • Special purpose facilities and areas