A reliable waterproofing membrane is an important part of a tiled wet area system. ProTrade Warehouse supplies a range of under tile waterproofing products for bathrooms, showers, laundries, balconies, terraces and other suitable applications.

Our range includes waterproofing membranes from Sika and Crommelin, with options for different substrates, application requirements and project conditions.

Waterproofing for Bathrooms & Wet Areas

Waterproofing membranes are commonly used beneath tiles in areas exposed to regular moisture and water, including:

• Bathrooms and shower areas
• Laundries and utility areas
• Kitchens and other wet areas
• Balconies and terraces
• Patios and outdoor tiled areas
• Other suitable tiled surfaces requiring waterproofing

The appropriate membrane will depend on the location, substrate, exposure and requirements of the project. Always check the manufacturer's technical documentation to confirm the product is suitable for your specific application.

Preparing the Surface Before Waterproofing

Surface preparation is essential before applying an under-tile waterproofing membrane. The substrate should be appropriately prepared, clean, sound and free from contaminants that could interfere with adhesion.

Cracks, joints, corners, penetrations and changes in substrate may require specific detailing products or reinforcement. Follow the waterproofing manufacturer's system requirements rather than treating the membrane as a standalone coating.

Complete Your Waterproofing System

Under-tile waterproofing is generally one part of a complete tiling system. Depending on the project, you may also require primers, reinforcement products, sealants, tile adhesives, levelling products and appropriate surface preparation materials.

For larger waterproofing projects, explore our full waterproofing range for additional systems and applications.

Under Tile Waterproofing Australia-Wide

Shop under tile waterproofing membranes from ProTrade Warehouse with Australia-wide delivery. We supply waterproofing products for contractors, builders, tilers and DIY customers working on bathrooms, wet areas, balconies and other suitable projects.

Contact ProTrade Warehouse if you need help selecting a waterproofing membrane for your project. Always read the relevant product data sheet and follow the manufacturer's application requirements before use.