How Does Shower Waterproofing Work?

What is waterproofing?

Waterproofing a wet-area involves the application of a liquid membrane to the walls and floor to prevent water leaks. Water can cause extensive damage to property. It can lead to the growth of mould and mildew, weakened structural foundation.

Waterproofing is not a new concept. It has been around for more than 10000 years and it is as old as professions like carpentry. Despite the history, it is still an area where there are many goof-ups and negligence leading to extensive damage and costly repairs. More than 80% of complaints against builders is due to their negligence in waterproofing the house effectively.

How does shower waterproofing work?

If you are wondering how exactly, waterproofing can help, keep reading.

  • A liquid membrane is applied to the wet areas, i..e bathrooms, kitchens or near water outlets. The waterproofing membrane stops the flow of water to penetrate into the shower floor via tiles and grout lines. It binds to the bore of the drainage pipes, walls and flooring and doesn’t allow water to pass through it. Once done, waterproofing can last for almost a decade so it is best to get it done correctly the first time.
  • First, the bathroom surfaces are prepared ensuring the wall joints are clean and do not have any large gaps. The bathroom is cleaned and vacuumed properly.
  • The areas to be waterproofed are marked
  • The bond breaker is applied to cover gaps in corners, drains and around plumbing fixtures
  • Lastly, two coats of waterproofing membrane are applied and allowed to dry. The membrane needs to be dry completely before tiling or any other work is done in the bathroom. Some bathrooms may require more coating and it all depends on the type of the bathroom you are constructing and the structural foundation of your home.

Waterproofing can take one-two days depending on the bathroom. If you are getting your bathroom renovated, ensure your builder is paying special attention to waterproofing the shower area.

Your local Bathroom renovation experts Brisbane

If you are planning for a bathroom renovation or have water leaks in your bathroom, ensure your bathroom and shower area is waterproofed properly and meets the Australian standards AS 3740 -1991. The best practice is to go above and beyond the minimum requirements so your home remains safe from any water damage. Always use a licensed waterproofer and do not attempt to do it yourself as it may prove to cause more harm than good. That way your bathroom will be insured and covered under warranty in case something goes wrong.

At Mastercraft Tiling and Bathroom Renovations, we are fully licensed and insured by the QBCC. If you need more information about our bathroom renovations and waterproofing services, give us a call on 07 3063 5633 or complete our online waterproofing enquiry form.


The History of Waterproofing

Our Unique Renovation Process


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Design consultation

This is where we go through the style and design elements of your renovation (layout, products, tiles and colour options). We will also assess structural and plumbing changes.



After we have created a style and design concept for your renovation, you'll be able to view your products and tiles and make your final selections.


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    A truly great experience. From quote to finish the team from Master craft Tiling were easy to work with and professional.

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    We used Mastercraft Tiling to renovate three bathrooms at our property. The whole process, end to end, was exceptional. Raymond was amazing and took real care over every step of the job. All trades involved were excellent to deal with. The job started and finished exactly on time and has exce...

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    Raymond and Vince were very easy to deal with, and provided great solutions to a tired looking concrete patio. The workmanship is of the highest standard, and the tiled back patio looks amazing. I would highly recommend Master Craft tiling to anyone for their tiling needs. I certainly will be usi...

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