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Why Waterproofing Fails? Here are the Reasons & Solutions

Why waterproofing fails? Common reasons are mostly related to leakages (where water enters). This is often a result of installation defects (concrete, tiling) and after-construction damages (weathering, impacts, other construction activities).

1. Installation defects

For instance, the areas behind retaining walls and concrete roofs should be watertight. Any leakage can slowly or gradually damage the interiors. By the time the damages become visible, expensive interior and exterior repairs will then be needed. Also, the area might become inhabitable either due to dampness or flooding.

That’s why it’s important to detect this type of problem early on. Qualified inspectors would check both the internal (wet areas including bathrooms and laundry rooms) and external waterproofing. They would also check for proper product installation and compliance.

2. After-construction damages

Even after proper installation procedures are followed, waterproofing defects might still occur due to daily and occasional activities. Impacts and constant exposure to water might make waterproofing membranes compromised. In addition, waterproofing membranes have limited useful lifespans. Eventually, these will need to be repaired or replaced.

Tiles and grout might also expand and contract due to temperature and moisture level changes. The resulting cracks and gaps might provide opportunities for water to enter. This could be caused by missing movement or expansion joints. Lack or improper installation of these could also lead to waterproofing failures eventually.

3. Other reasons

Lack or dilapidation of surface coating, improper tiling and high hydrostatic pressure may also lead to waterproofing defects. Whichever is the reason, these issues could all be prevented through proper installation and adherence to standards.

If you suspect an issue or failure, professional inspection is the only way to reveal the problem. Accurate assessments then lead to accurate solutions. When these solutions are applied, the property will maintain its value while avoiding expensive repairs later on.

Why waterproofing fails

Now you’re familiar with the common waterproofing failures and their causes. These should be detected early on to prevent expensive structural issues and harmful health effects (microbial growth due to dampness).

It also helps to undertstand the products being used and their Technical data Sheet information prior to installation.

That’s why here at Sydney Building Defects Inspections and Reports, we use specialised tools and equipment to pinpoint waterproofing issues. We use thermography, zoom cameras and other technologies to determine waterproofing and other construction problems.

Contact us today if you suspect waterproofing failures in your residential or commercial property.