July 1, 2022

How to Treat Efflorescence in the Grout Lines of Your Tiled Balcony

Whether it’s entertaining family and friends on a Sunday afternoon, or simply sitting down to enjoy a morning coffee at sunrise, your balcony is the perfect place to make the most of life’s little moments each day.

Tiling your balcony can also help to improve the look of your outdoor space and make it much easier to clean and maintain throughout the year.

Unfortunately, when tiles are not installed properly, issues such as efflorescence can take hold of your balcony area, leaving ugly powder-like marks and gaps within the grout lines in between your tiles.

In this article, we’re going to take a look at what causes efflorescence in your grout, the other places you may find efflorescence, as well as the best way to treat and remove it as easily as possible from your tiled balcony space.

What causes efflorescence in the first place?

For those of you unsure, efflorescence appears as a salty, crystalline mark on or around the grout lines of your tiled surfaces.

Efflorescence is typically a seasonal problem. Long periods of rain, snow or low temperatures can cause excess moisture to penetrate and soak through your grout lines into the concrete substrate below. When the moisture then evaporates, it draws up the salt and other minerals from the concrete, leaving behind the ugly white marks that you then see on your tiled surface.

This can also occur when the grout used in between the tiles has been improperly prepared before being installed. A wet, watery grout is far more likely to attract efflorescence than a grout that’s been properly mixed with the right amount of water.

Where else can you expect to find efflorescence?

Efflorescence is not simply limited to the grout lines on your tiled balcony surface.

In fact, it’s quite common on the surface of concrete, bricks and other mortars. You can even find it on your actual tiles, in addition to the grout in between.

When efflorescence appears in these sorts of areas, it’s often due to a lack of, or improper, waterproofing during the construction and installation of these building materials.

Why is it so important to remove efflorescence?

Efflorescence is typically referred to as “cancer of the building”.

When it goes untreated, it can begin to cause extensive damage to the integrity of the area it is affecting. For example, it can cause masonry to disintegrate, plaster to crumble, woodwork to rot and other substrates to buckle and deteriorate altogether.

That’s why it’s so important to take care of efflorescence as soon as you find it on your surfaces.

What’s the best way to remove efflorescence from your tiled balcony?

Following these steps, you can effectively treat the efflorescence in your grout lines and remove it altogether, allowing you to restore the integrity of your tiled balcony, as well as the aesthetic appeal of the area.

  1. Remove all loose material, efflorescence and damaged grout from your grout lines and clean out any areas where the grout is missing altogether.
  2. Apply Efflorescence Rid using a low-pressure sprayer to the affected area.
  3. Remove any loose materials that may have dislodged in the first application and allow the area to dry completely.
  4. Repeat the application of Efflorescence Rid until the foaming stops. This may require 3 or more passes, depending on the amount of efflorescence present.
  5. Once you’ve finished the last pass of Efflorescence Rid, wash the entire area with clean water, and allow the grout to dry completely
  6. Using a ‘squeeze bottle’, pour Sealtight into your grout lines, and into the screed where exposed by removed grout, to the point of flooding the screed and grout.
  7. Allow the Sealtight to dry over a minimum of 24 hours.
  8. Re-apply your tile grout and allow that to dry.
  9. Once your tile grout is dry, saturate the replaced grout with Sealtight

The right waterproofing solution will remove efflorescence and protect your grout lines

Using Sealtight, you can effectively waterproof your tiled balcony and ensure that your grout lines stay free from excess moisture and efflorescence in the future.

Of course, if you’d like further guidance on the best waterproofing products to use on your grout lines, speak to your local Australian waterproofing specialists.

Get the right waterproofing solutions for your grout lines with SWP

At Scientific Waterproofing Products, our team is here to provide you with the right waterproofing for your unique situation. We offer a wide range of Drizoro cement-based waterproof coatings for all of your maintenance and restoration requirements.

If you’ve got any questions or issues around treating efflorescence in your grout lines, or you’d like to find out which product is best for your needs, contact us today! You can also check out a list of local Drizoro resellers and applicators here.

As always, SWP is committed to providing the right waterproofing solution for any water-related problem or application.

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