Why waterproofing is necessary and how long it should last


A waterproofing membrane is something that does not allow any moisture to pass through it. This makes it different from “water-resistant” which only restricts the movement of moisture. A waterproofing system is applied to wet areas or weather-exposed surfaces of a building to ensure that no moisture penetrates or escapes. A compromised foundation is one of the worst structural problems that a property owner can face, and the leading cause of foundation problems is water damage, making waterproofing incredibly important.

Waterproofing is the best way to protect your building’s structural integrity from water damage. It involves creating an impermeable membrane that prevents water from seeping into dry areas and draining off safely. Insufficient waterproofing is a problem all year round, not just during rainy seasons. This is why you should ensure that your building is properly waterproofed to prevent major structural issues or aesthetic defects, making your commercial or industrial space either unsafe or difficult to occupy.


How long does waterproofing last?

When looking for a specialised waterproofing contractor, it’s vital to do your research. Good workmanship coupled with strong strategic choices over the combination of waterproofing materials is the key to a durable waterproofing system. Quality waterproofing systems should last for at least 10 years and sometimes they can last much longer given the right circumstances. However, this is largely dependent on many factors including:

  • The type of waterproofing materials used.
  • The pre-existing condition of the building/area of application.
  • Rare extreme weather conditions such as hurricanes.
  • Birds pecking at membranes.
  • Mishaps during other trades work.


What waterproofing products are available in South Africa?

As one of the premium waterproofing membrane suppliers in South Africa, Robex offers the leading edge in waterproofing technology. In line with client requirements, we have the best solution for every situation. Here are some of our waterproofing recommendations:

RX Wetsuit
The RX Wetsuit is a fully bonded, seamless, spray-applied waterproofing system. it is an extremely versatile, highly durable waterproofing membrane that’s safe for the environment. RX Wetsuit is a high-grade rubber product with bituminous emulsification that delivers as a roofing product, waterproofing product and air barrier. Ideal for a wide range of uses, the system provides solutions for the entire building envelope. This product comes with a 15-year maintenance-free guarantee.

RX Protadeck
RX Protadeck is a high-performance waterproofing solution that protects concrete, timber and steel surfaces. It is 100% seamless, fully bonded and trafficable and can be applied to virtually any surface, including horizontal and vertical substrates. Its rapid application and curing (areas can be returned to service in under 20 minutes) make it the ideal solution for busy businesses. This product is built to last and comes with a 10-year guarantee.

RX Proflex Waterproofing Range
All the products in the RX Proflex range are based on modified liquid polypropylene combined with refined bitumen, selected synthetic resins and water displacing agents. It has exceptional adhesive properties and flexibility in application. With maximum performance for total adhesion, it can be used in extreme climatic conditions – even at -18°C.

RX Trustcoat
RX Trustcoat TWP is a colourless solution containing hydrophobic molecules that penetrate deep into the substrate to provide a highly durable barrier against water penetrations. The solution is easy to apply by brush or spray and works on most surfaces including brick, concrete, natural and cast stone, asbestos, cement, chalk and limestone. RX Trustcoat offers effective external protection for up to 10 years.

RX O.R.A Anti-Rain
O.R.A. Anti-Rain transparent waterproof coatings prove that protecting your balconies, tiles, terraces and any other paved or tiled surfaces doesn’t have to be strenuous or expensive. This specially formulated water-repellent membrane is a transparent waterproof coating that is ideal for paved or tiled surfaces. It penetrates deeply to provide added protection from water infiltration, grease, smog, oil, mould and other weathering agents.

Using our extensive knowledge and experience, we work with architects, building owners, construction companies and more to find the best waterproofing solution for their buildings. Please contact us for a waterproofing solution that lasts.

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