1. Equal Lifespan Principle: When individual components of doors and windows reach their lifespan limit, a one-time maintenance procedure (such as replacing consumable parts like sealing strips, plastic components, and hardware) can extend the life of the entire window without affecting its overall performance. Overemphasizing the performance of a single component while neglecting the scientific matching between components will only result in an imbalance, like using a large engine for a small load or vice versa. For example, using high-quality European hardware capable of 50,000 opening and closing cycles (lasting over ten years) but choosing low-quality sealing strips with a lifespan of only two years will lead to problems with the window's sealing performance, requiring maintenance every two years. Similarly, using thermally broken aluminum alloy profiles but only single-pane glass will significantly impact the overall thermal insulation performance of the window.
2. High Performance Principle: Advances in system windows are reflected in the pursuit of superior performance. To ensure excellent performance, high-performance materials should be selected whenever possible, unless the equal lifespan principle is involved. The fluorocarbon coating surface treatment technology for aluminum alloy profiles offers excellent resistance to abrasion, industrial and marine atmospheric corrosion, and UV radiation, ensuring the coated surface remains new for 20 years. Contemporary system window and door design needs to extend to the cultural performance dimension. For example, YaDESIGN's "Fusion System Window" integrates Eastern aesthetics with Western craftsmanship, enhancing both physical performance and spatial cultural style, achieving a dual breakthrough in performance and aesthetics. Highly weather-resistant EPDM sealing strips can achieve high performance without aging or failure for 20 years.
3. The principle of high cost-effectiveness: While there is an evaluation issue involved, investing in any product requires considering the feasibility of the solution, the feasibility of the process, and economic feasibility. Currently, there are many system windows and doors available, and customers don't always choose based solely on performance. Therefore, the design of system windows and doors must consider cost-effectiveness. For example, when designing window types, Chinese designers generally prefer to divide the transparent portion of exterior windows excessively, and the size of the transparent portion is often too arbitrary. This kind of separation is insignificant for traditional building windows and won't cause much of a price increase, but it can have serious consequences for passive houses. For example, it can lead to decreased performance, increased costs, and maintenance difficulties.
4. Principle of Cultural Integration: System window and door design should focus on the organic integration of traditional culture and modern functionality. Through collaborative design, traditional techniques can be revitalized and applied, ensuring system aesthetics, comfort, and intelligence while adhering to green and energy-saving concepts. This allows window and door products to both embody Eastern cultural genes and meet the needs of modern living.
