External Type A Waterproofing

Depending on the type of structure it is applied to, once installed, the combination of selected products within the HydroBond range can provide a continuous barrier around the full extent of the structure.

The HydroBond range of products can provide protection against both groundwater and ground gasses such as radon, methane, and carbon dioxide, depending on the products employed, making it the ideal solution where protection from any or all of these elements is required.

Type A Waterproofing

The British Standard for Waterproofing 8102:2022 is the ‘Code of Practice for Protection of Below Ground Structures Against Water Ingress’ and defines Type A waterproofing as “barrier protection” which is applied to either the internal or external surface of a structure in order to resist the pressure of water trying to enter the building..

Type A membranes are the products that are referred to when people talk about the process of “tanking” a basement in order to protect it from water ingress.

Barrier waterproofing membranes that can be applied to the external ‘positive’ side of the structure include both pre-applied, self-healing sheet membranes, and post-applied liquid membranes that can be linked to the above-ground DPC in order to completely encapsulate, or “tank”, the basement in a continuous waterproof layer.