While traditional methods would require the existing traffic topping and the underlying waterproofing membrane to be removed and replaced, specialised materials based on polyurea allow for repairs without excavation in a single application. They are designed to serve as a waterproofing membrane and traffic topping, and can be applied over the existing surface.
Despite a higher price tag, these waterproofing systems are an optimal solution when application durability is the goal. There is a variety of finishes that comes with a choice of colours and a non-slip texture.
This less expensive (and less durable) option is a good choice for a more temporary solution when there are budget constraints. It is a two-layer application consisting of a non-UV protect basecoat and either a non-UV or a UV-protection topcoat – as required, based on whether the surface is exposed to the weather elements.
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