TingWall is the only curtain wall system designed with Functional Isolation Concept leading to independent and durable performance functions rather than the intertwined performance functions in other curtain wall systems. The major curtain wall performance functions include the following items.

1. Air sealing function.
2. Water sealing function.
3. Tolerance to inter-floor story drift.
4. Tolerance to inter-floor deflection.
5. Tolerance to thermal movement.

The meaning of independent function can be apprehended by the following examples. (1). If a sealant line is used for both air sealing function and water sealing function, the air sealing function is no longer independent of water sealing function. (2). If the inter-floor story drift will produce significant sealant line stress or distortion, the sealing function of the sealant line is no longer independent of the story drift function. (3). The famous “Glass Rain Phenomenon” discussed in Japan is due to the aging effect on sealant line leading to a significant reduction of tolerance to story drift. It is difficult to understand how the above five performance functions can all become independent. A careful design study of TingWall will lead to the conclusion of the five independent functions. The independent functions in TingWall has been proved in unconventional and unprecedented durability laboratory mock-up tests in USA and Taiwan.

Reference: “Functional Isolation Concept in Curtain Wall Design” by Raymond Ting, 2006 Architectural Engineering Conference, March 29 to April 1, 2006, Omaha, Nebraska.