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Unfortunately, very few painting contractors test the substrate for damp before painting. If a coating is applied to a surface where the moisture content is higher than 10%, the application is very likely to fail.

At SUPERSEAL, we use the latest technology to test the moisture content in a wall or substrate. SUPERSEAL are graduates in understanding how water works and how to ensure that a surface is not just waterproof, but damp proof and not prone to vapourisation and condensation. We do a five-stage inspection test. If any water pools and fails to evaporate within 36 hours, then appropriate surface preparation needs to be undertaken. Often issues of water ingress are addressed by applying flashing solutions, membrane, bitumen or silicone applications. While these solutions can work in some instances, often if the real issue of the water flow is not adequately addressed, the water ingress will persist.


SUPERSEAL has the goal of acting as trusted partners with our clients by delivering on The SUPERSEAL Promise ™ which is that we will:

  • Offer additional value wherever possible
  • Endevour to always start and finish on time
  • Maintain a neat, clean work environment
  • Provide a total commitment to all details, by being accountable and acting honestly
  • Maintain regular communication with all stakehoders
  • Always follow manufacturer/supplier specifications


  • Why is my metal roof leaking?

    Metal roofing is easy to install and can last for 20 years or more if properly cared for. Unfortunately, it is also prone to rust. Although metal roofing materials are generally galvanised or coated to prevent rust, weather conditions such as rain and direct sunlight can corrode these coatings leading to surface and corrosive rust, which in turn can cause a roof to leak. This is why it is important to properly maintain and care for your metal roof and why we at SUPERSEAL use a trusted 5 step process when treating a rusted roof.

  • Why is my exterior paint bubbling?

    While bubbling or blistering might be a defect caused by incorrect application, in the case of elastomeric coatings such as those used by SUPERSEAL the formation of bubbles is exactly what is supposed to occur when water is trapped in the substrate. Elastomeric coatings are noteworthy for their elasticity which allows them to tolerate some substrate movement and bridge moving hairline cracks. They provide a virtual barrier to water in its liquid phase and as such are excellent for waterproofing (you are more or less wrapping a building in plastic). However, elastomeric coatings also “breathe”, which means that their permeability allows moisture vapor (water in its gaseous phase) to readily pass through the film without compromising the film’s adhesion to the surface. Therefore, one can often see a bubble disappear as the water escapes as a gas. In cool areas that are not exposed to sunlight or heat these bubbles may take longer to disappear as the water may not evaporate as easily.

  • What if my previous waterproofing application is failing?

    While most other contractors climb onto the roof to stick on some more rag or membrane, thinking that is the solution, it is actually contributing to the problem, as it is causing condensation within the actual patch. SUPERSEAL remove the old sheets of membrane and coat the roof with the proper solution.

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