1. Definition and influencing factors of water penetration resistance
The water penetration resistance of Curtain Wall mainly depends on factors such as glass, frame construction, drainage details, sealing strips, and peripheral gaps. Traditional dry systems usually adopt a design with high sealing performance to reduce the risk of water penetration by reducing openings and gaps. Wet Curtain Wall may allow a certain degree of water penetration in some cases, but drain the water through a drainage system (such as seepage holes or drainage grooves) to avoid water accumulation.
2. Water penetration characteristics of traditional dry systems
Traditional dry systems usually adopt "face sealing" technology to try to prevent water penetration by completely sealing. However, this method may cause sealing failure due to pressure difference in actual application, thereby increasing the risk of water penetration. In addition, since the dry system of metal materials does not absorb water, once the humidity is too high, it is easy for water to penetrate and accumulate rapidly.
3. Water penetration management of Wet Curtain Wall
Wet Curtain Wall guides water entering the curtain wall to the outside by setting drainage holes or drainage grooves in the curtain wall system, thereby reducing the possibility of water accumulation. Although this design allows a certain degree of water penetration, it reduces the impact of water on the curtain wall structure through an effective drainage mechanism. In contrast, traditional dry systems focus more on preventing water penetration rather than managing water problems through drainage.
4. Performance comparison
In terms of water penetration resistance, pressure-equivalent systems generally provide the highest waterproof performance, followed by water-managed systems. Wet Curtain Wall belongs to the latter, which mainly manages water penetration through drainage mechanisms rather than completely preventing water from entering. In contrast, traditional dry systems tend to achieve waterproofing through sealing and reducing openings.
5. Applicable scenarios and advantages and disadvantages
Wet Curtain Wall is suitable for scenarios that require a certain amount of water penetration management, such as areas with humid climates or heavy rain. Its advantage is that it can effectively manage water problems through drainage systems and reduce the impact of water accumulation on curtain wall structures. However, its disadvantage is that it may not be able to completely prevent water penetration, especially in extreme weather conditions
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