Waterproofing Roofs, Basements, Below Ground Structures, Bridges and Other Structures

Below ground structures are formed by a base slab, walls, and a top slab. These are exposed to damp soil, hydrostatic pressure, water flows, or moisture. They are also subjected to different levels of water exposure, static and dynamic forces, temperature differences, and pressure, which yield different stress conditions. This is not to mention aggressive groundwater that may contain chlorides and sulfates and exposure to fungal or bacterial attacks and underground gases. The waterproofing systems adopted must withstand the different levels of stresses identified and meet stringent requirements to ensure durability and avoid condensation, structural cracking, and damages to structure finishes and contents.

Holderchem provides waterproofing solutions that involve the application of highly flexible membrane systems, coatings, or liquid-applied polymeric membranes encompassing the following:

• Integral waterproofing systems, which include integral waterproofing admixtures combined with joints sealing systems
• External waterproofing systems in the form of waterproofing mortars and coatings, applied on the external surface (positive side) that is exposed to groundwater
• Internally applied (negative side) waterproofing systems, normally used in refurbishment works, and where access to the directly exposed surface is not possible. These systems are applied as coatings or sheet membranes
• Joint sealing systems for construction and movement joints

Holderchem offers new construction and repair solutions based on waterproof mortars and bituminous coatings, liquid-applied reactive polymeric membranes, and fully-bonded flexible sheet membrane systems.