The creation of habitable or usable spaces by what is commonly known as tanking requires a specialist who understands the properties and limitations of a structure and its substrate before carefully planned and executed works can take place using the most appropriate waterproofing systems.
Common Types of Waterproofing System
Selection of the most appropriate waterproofing system will depend not only on the condition and construction of the property in question but most importantly by the correct diagnosis of the existing water ingress problem.
Cementitious Coatings create a dry environment by introducing a physical barrier to water entering a basement area. When cementitious waterproofing systems are used, which can either be layered renders or slurry coatings, the correct preparation of the substrate is critical. Water stops or PU Resins can be injected to stem the water flow. Layered render systems are then applied to achieve degrees of resistance to water pressure.
In contrast, Cavity Drain Membranes allow water to continue to penetrate a structure but control and then divert it to a suitable drainage point, sometimes using a mechanical pump. The dimpled profile of the membrane equalises water pressure and the air gap in the cavity increases the thermal properties and reduces the likelihood of condensation. Drying time is minimal as the membrane is usually dry lined, allowing for quick completion of decorations and finishes.
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