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Tiledek™ Tile Underlayment Waterproof Membrane

There is nothing like the look of tile or slate on that outdoor deck. But the beauty is soon forgotten when water pours into your home, seemingly through the tile. And then you discover that all the attention on the job was towards the tile with little thought given to proper waterproofing. Rot repair is intrusive and expensive, not to mention the cost of replacing the tile.


This is a common story. There seems to be a lack of understanding within the building community about the proper waterproofing of decks, balconies and roofdecks that are overlaid with porcelain tile, slate or some of the other natural stone finishes. That’s where Duradek fits into the picture.

Tile Underlayment

Click here to learn more about the Tile Underlayment System.


Click here to discover various applications of the Tiledek.

Case Studies

Click here to browse Tile Underlayment case studies.


Click here to read more about this product's warranty.

Why use Tiledek?

  • 60 mil membrane (compared to others at 40 mils)

  • Installed only by trained contractors who specialize in roofdeck and balcony waterproofing

  • Duradek has 40 years of roofing/waterproofing experience to draw upon

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