Ardex

ARDEX waterproofing is a range of liquid-applied and sheet membranes, primers, tapes and accessories that create a watertight barrier before tiling or finishing. It covers internal wet areas such as bathrooms and laundries, as well as external decks, balconies, roofs and below-ground structures. The range includes rapid-cure undertile membranes, polyurethane and cementitious membranes, and UV-stable coatings for exposed surfaces.

Yes. ARDEX is one of the most established names in the Australian building industry and is widely specified by tilers, waterproofers and builders on both residential and commercial projects. The range is broad enough to cover internal wet areas, external decks and below-ground work, and each product is published with its own documentation so you can match it to what your job actually requires.

ARDEX is a German company. ARDEX GmbH was founded in Witten, Germany, and is still run as a family-owned business operating in more than 100 countries. It has had a strong Australian presence since acquiring Norcros Building Products in 2001, with local distribution and technical support, so ARDEX products are readily available and supported across Australia.

It depends on where you are waterproofing. For internal wet areas under tiles, rapid-cure membranes such as ARDEX WPM 155 are a popular choice. For external decks, balconies and roofs exposed to sunlight, a UV-stable membrane like ARDEX WPM 310 is designed for exposed surfaces. For moisture-affected slabs, an epoxy moisture barrier such as ARDEX WPM 300 is used. If you are not sure, check the product technical data sheet or contact our team for advice on the right system.

Waterproofing of domestic wet areas in Australia is governed by AS 3740 (Waterproofing of domestic wet areas). It sets out where waterproofing is required, such as shower floors and walls, and the minimum requirements for membranes and falls. We do not make compliance claims for individual products here, because certification is held product by product and application by application, so check the documentation for the membrane you intend to use. Wet-area waterproofing is generally required to be carried out by a licensed waterproofer.

The required thickness depends on the specific product and is stated in its technical data sheet as a dry film thickness, along with the number of coats. Applying the correct thickness across the whole area is essential for a watertight, compliant result, so always follow the coverage rate and coats stated for the product rather than a general rule. Under-application is one of the most common causes of waterproofing failure.

You can buy the full ARDEX waterproofing range from The Waterproofing Shop, with fast shipping Australia-wide. We stock membranes, primers, tapes and accessories, and our team can help you choose the right system for your project. Browse the ARDEX range above, or contact us for expert advice before you order.