Waterproofing & Damp-proofing
Waterproofing and Damp-proofing projects come in various forms. Waterproofing is typically an “underground” application, but can also have an above grade, but below the roof location on a building. Damp-proofing is typically installed on below grade walls and under floor slabs on grade.
Waterproofing is defined as the resistance of the passage of water under hydrostatic head pressure. Hydrostatic head pressure means water is present from underground water buildup. This pressure is greater in soils that don’t allow much water to flow away from a building, like clay and solid rock. Waterproofing materials are available to suit the varied building site conditions:
Above Grade, Buried Plaza Areas
Above Grade, Surfaced Waterproofing Systems
Damp-proofing is defined as the resistance of water in the absence of hydrostatic head pressure. Damp-proofing materials typically will not bridge cracks in concrete that may occur during the life of a building. Damp-proofing can be used on either residential or commercial applications. Most Damp-proofing products are spray applied very quickly and applied at around thinner in some cases than waterproofing. Therefore, Damp-proofing may be significantly less costly than waterproofing.
