Waterproofing is a key layer of protection in any building — silently shielding your structure from water damage, decay, and costly long-term repairs. But when waterproofing systems begin to fail, signs emerge that should not be ignored.
At Costarchem, we help builders, engineers, and property owners spot these signs early and provide the best solutions using high-performance construction chemicals.
Here are 5 signs that your structure may need waterproofing repair — and what to do about it.
1. Damp Patches or Peeling Paint
If you’re seeing wall stains, bubbling paint, or surface discoloration, moisture has likely breached the surface. This is a common indicator of failed waterproofing on both internal and external walls.
Solution:
Apply Krystal Coat or Costar 2K — both offer excellent waterproofing protection, sealing surfaces and preventing further damage.
2. Mould or Mildew Growth
Mould thrives in damp, poorly ventilated areas and is not only damaging to surfaces but also hazardous to health.
Solution:
Use Krystal Coat, which provides strong waterproofing along with anti-fungal resistance — ideal for moisture-prone indoor areas.
3. Cracks in Walls or Floors
Cracks in concrete or plaster aren’t just cosmetic. They allow water to penetrate deeper, potentially weakening the structural core.
Solution:
Use Costar Repair Mortars, tailored to address different crack types. Our technical team can help recommend the ideal mix based on severity.
4. White Powdery Stains (Efflorescence)
Efflorescence is a clear sign that water is moving through concrete or brick and dissolving salts along the way.
Solution:
Treat affected areas with Hydropruf 100 to prevent moisture transmission and halt salt deposits.
5. Persistent Water Leakage
Leaking ceilings, bathrooms, or balconies require urgent attention — especially when the leak is active and continuous.
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Solution:
Apply Costar Pro Plug, a fast-setting formula that stops active leaks instantly, providing immediate and lasting repair.
Don’t Wait for the Damage to Worsen
Waterproofing failures might start out tiny but quickly get out of control, damaging the structure and raising the expense of repairs.
At Advanced Concrete Technologies, we provide reliable waterproofing systems trusted across the construction industry to restore and reinforce your building’s defenses.
📞 Need expert guidance?
Our technical support team is here to help you choose the right product for every surface and situation.
Let’s build it to last.
