System windows and doors are building window and door systems that integrate multiple performance aspects such as water tightness, air tightness, heat insulation, sound insulation, burglarproofing, sun shading, and ease of operation. Their overall performance is achieved through the synergistic effect of components such as equipment, profiles, accessories, glass, adhesives, and seals, requiring comprehensive consideration of factors such as climate adaptability, weather resistance, and mechanical strength. This product originated in China in the late 1980s. After the introduction of European system window and door technology in the late 1990s, a market with both domestic and foreign brands emerged. Foreign brands include Schüco and WACKER from Germany, and YKK from Japan. Domestic brands mainly include Sheting Windows and Doors, Becklow, Ouzhe, and Godeli. In 2026, the China Building Metal Structure Association and other organizations jointly released a list of the top ten window and door brands, including Paiya Windows and Doors, Zhishang Windows and Doors, YKK AP, Meichi Windows and Doors, and Suozhe Windows and Doors. At the Canton Fair that same year, Jianmei Aluminum showcased its "locally adapted window" strategy, tailored to different national climates and standards, and participated in the formulation of several international and domestic standards.
Its design adheres to the principles of equal lifespan, high performance, and high cost-effectiveness. Through system integration, it optimizes the combination of profiles, processes, and accessories to meet eight performance design requirements, including wind pressure resistance and water tightness. Contemporary system window and door design needs to extend to the dimension of cultural performance. For example, YaDESIGN's "Fusion System Window," developed by integrating Eastern aesthetics with Western techniques, achieves a dual breakthrough in performance and aesthetics. Tensile strength should be ≥157 N/mm², yield strength ≥108 N/mm², and the wall thickness of the aluminum profiles used should be ≥1.4 mm. With the implementation of building energy conservation policies, system windows and doors, due to their advantage in reducing building energy consumption, are gradually becoming the upgrade direction for the window and door industry, and the market may develop towards green energy conservation and intelligent interconnection.
