Single-layer rainproof louver windows are designed for rooms or public areas requiring long-term ventilation. They consist of rainproof louvers with gutters and side frames with drip frames. Even during heavy rainfall, these windows effectively prevent water from entering the interior and do not form a water curtain on the windward side of the louver. This ensures normal design ventilation requirements. Single-layer rainproof louver windows are available in both vertical and horizontal styles and are primarily used for shading on the facades and roofs of large shopping malls, exhibition halls, garages, etc. They also serve as a theft deterrent. A major feature of the single-layer rainproof louver windows is the ability to adjust light at different angles, creating varied natural light in the room.