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How to waterproof a bathroom step by step

  • Jax Tiling
  • May 12, 2024
  • 2 min read

Updated: Dec 8, 2025


Ultimate Bathroom Waterproofing Guide: Step-by-Step Tutorial


Join me in this comprehensive tutorial where I guide you step by step through the process of waterproofing a bathroom. Waterproofing is the most important part of a bathroom renovation; if you encounter a failure, it could lead to significant costs and damage. Remember, waterproofing should be done correctly the first time to ensure long-lasting protection.


Always remember, this is the way I do it, and it doesn't necessarily mean it's the only way or the best way for your specific project.


This video is intended to provide an idea of how waterproofing should look with the method I use.


Step 1: Begin by using a grinding stone to smooth the floor surface and remove any loose particles.


Step 2: Thoroughly vacuum the floor and wipe down the walls before applying primer to ensure proper adhesion.


Step 3: Apply primer to the prepared surfaces, ensuring thorough coverage for optimal adhesion of the waterproofing membrane.


Step 4: Use tape to mark off areas on the wall where you want to apply waterproofing for a cleaner finish.


Step 5: Apply a bond breaker to internal corners and cover any penetrations. Rubber sleeves can also be used to block penetrations. If the villa board is snug against the penetration, simply follow the bond breaker instructions without the need for fiberglass.


Finally, follow the manufacturer's instructions carefully as you apply the waterproofing membrane. This tutorial will equip you with the knowledge needed to effectively waterproof your bathroom. Remember, waterproofing should be done once and done correctly. Happy renovating!


The information provided in this video is based on my personal experience and is intended for general informational purposes only. It is not a substitute for professional advice. Always consult with a qualified professional before undertaking any home improvement or renovation projects. Any actions you take based on the content of this video are at your own risk

 
 
 

1 Comment


Ermelinda Loving
Ermelinda Loving
3 days ago

Clear, practical guidance makes the process feel achievable. You restate why strict adherence to manufacturer steps and single-pass accuracy prevent hidden failures, especially in wet zones and junctions, and The Pokies https://www.arg.org.nz/ analogy mid-sentence shows how small lapses compound over time. It grounds renovation in risk management. What checks ensure coverage before tiling begins?

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