Historically, exterior tile jobs have had repeated issues of tiles cracking or lifting; and exterior tile and grout provide absolutely zero waterproofing protection. While this may be something you would be willing to accept on a ground-level walkway, it certainly could pose a problem for deck surfaces, particularly when over living space.
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| Doing it right the first time saves time and money. Demolition and rebuild of a leaky tile deck is a homeowners nightmare. |
Duradek Ultra Tiledek has changed the playing field for exterior tile applications and allows a performance-proven system of under-tile assembly to far surpass the methods and products used in the past. Duradek Ultra Tiledek brings solutions to the 3 primary environmental stresses that make exterior tiling a challenge.
#1 - Freeze / Thaw Cycles: When water that infiltrates the tile, grout and substrate is allowed to freeze, it expands and can cause high internal pressure. The localized damage caused by the expansion can allow even more water to infiltrate the materials during the thaw. As the cycle repeats, deterioration of the assembly will occur over time.
Duradek Ultra Tiledek is able to withstand freeze/thaw cycles while many other materials cannot. As a waterproofing membrane specifically designed to best adhere exterior tile on rooftop applications, no moisture is able to penetrate through to the substrate.
#2 - Thermal Stress: When the temperature increases, the materials used in the assembly can expand. Since the sun heats the tile assembly from the top, a gradient of higher temperature in the tile layer and a lower temperature in the substrate is created which causes significant stresses at the tile/bond coat/substrate interfaces in direct bond applications which can result in cracking.
Duradek Ultra Tiledek is a strong and durable vinyl membrane which provides just enough flexibility in the assembly to allow for subtle movement due to thermal stress and allows the complete tile assembly build-up to shift with the temperature without losing integrity in the adhesion.
#3 - Moisture Exposure: Since tile and grout are not waterproof, moisture can enter the assembly and cause substantial damage to any moisture sensitive substructure.
Duradek Ultra Tiledek is a roofing-approved waterproof membrane, so you are guaranteed that if your exterior tile is installed over habitable space, the area below is properly protected.
Most experienced tile installers will agree that some of the most critical points to consider when planning exterior tile projects are:
- Waterproofing and Flashing Details
- Inclusion of Movement Joints
- A Suitable Surface
In fact, some installers refuse to take on outdoor tile jobs if the customer does not want to pay for the proper build-up assembly underneath, and waterproofing seems to be the most critical factor.
When the problem can't be avoided, Tiledek simplifies the solution.
One of the most common problems with exterior tile is experiencing tiles 'popping' or 'lifting'. When your outdoor tile assembly utilizes the Duradek Ultra Tiledek recommended application, this becomes a very minor issue. Because the Tiledek waterproof membrane is installed underneath the thin set mortar, tile and grout, even if a tile does lift it does not at all compromise the waterproofing protection and the tile can easily be adhered back in place. Without a proper waterproof membrane underneath the tiles, once one tile lifts you have no certainty whatsoever that the entire tiled surface has not been compromised.
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| Tile 'lifting' could be avoided when adhered to a Tiledek Membrane |
With the costs involved in an outdoor tile job (just the tiles themselves can be expensive), you get heh most value out of your investment when you choose to do it right the first time...do it with Duradek Ultra Tiledek.
To see an example of how Tiledek has outperformed its predecessors, read these real-life examples from Vancouver, BC, Centerville Bench, UT and the Bay Area, CA.
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