• By Aman
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Waterproofing is one of the most essential steps in construction and renovation, yet it’s often overlooked or improperly executed. The consequences? Costly damage, structural deterioration, mold growth, and ruined finishes. Whether you’re waterproofing a basement, terrace, or bathroom, avoiding key mistakes can save you time, money, and frustration.
Here are the 5 most common waterproofing mistakes—and how you can avoid them.

1. Skipping Surface Preparation

The Mistake:
Applying waterproofing products on dirty, damp, or uneven surfaces reduces adhesion and effectiveness.
How to Avoid It:
Always clean and dry the surface thoroughly. Remove dust, oil, debris, and moisture. Repair cracks and ensure a smooth, primed surface before application.

2. Using the Wrong Waterproofing System

The Mistake:
Not all areas need the same waterproofing. Using the wrong type (e.g., using a bathroom membrane outdoors) can lead to failure.
How to Avoid It:
Understand the area’s exposure and movement needs. Use cementitious membranes for wet areas, bituminous for foundations, and polyurethane or acrylic for terraces and roofs.

3. Poor Detailing Around Joints and Penetrations

The Mistake:
Neglecting corners, pipe joints, drains, and wall-floor transitions—where water often seeps through.
How to Avoid It:
Use reinforcing fabric or joint tapes on vulnerable areas. Apply extra coating around penetrations and follow manufacturer guidelines for layering and sealing.

4. Applying Inconsistent Thickness

The Mistake:
Too thin a coat leads to weak spots; too thick can cause cracking.
How to Avoid It:
Use a wet film thickness gauge to ensure consistent application. Apply the recommended number of coats and allow proper drying time between layers.

5. Rushing the Curing Process

The Mistake:
Covering or tiling before the waterproofing has fully cured can compromise the seal.
How to Avoid It:
Be patient. Follow the curing time mentioned on the product label—typically 24 to 72 hours. Avoid foot traffic or further work until fully set.

Final Thoughts

Waterproofing is your building’s defense against time, weather, and structural damage. Doing it right the first time saves rework, repairs, and future headaches. Always choose the right product, follow best practices, and when in doubt—consult an expert.
Need an expert help with your waterproofing project? Get in touch with our team for the right solution and flawless execution.