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The differences between system doors and Windows and ordinary doors and Windows - Criteria for choos

Release time:2025-05-26 Read:

What are the differences between system doors and Windows and ordinary doors and Windows? What are the standards for system doors and Windows
 
Abstract: Doors and Windows are an indispensable part of our home life. System doors and Windows and ordinary doors and Windows are currently two relatively common types. So, what are the differences between system doors and Windows and ordinary doors and Windows? System doors and Windows conduct comprehensive tests on materials, the performance and quality of the entire door and window, and select series based on the project requirements, with less flexibility. In contrast, ordinary doors and Windows are temporarily integrated door and window products for individual projects and often have not undergone comprehensive tests. Although they have strong flexibility, their quality and standardization cannot be guaranteed. Let's take a look at the differences between system Windows and ordinary Windows as well as the standards of system Windows together.

 
I. The Differences between System Windows and Doors and Ordinary Windows
In terms of stability and performance
System Windows and doors have their own independent technical department, which conducts strict tests and inspections on each component of the system Windows and doors, ensuring good stability. During the research and development of system doors and Windows, it takes 2 to 3 years to conduct comprehensive tests on materials, performance and quality. Only after achieving the expected goals can mature products be launched. Ordinary doors and Windows are temporarily integrated door and window products for individual projects and often have not undergone comprehensive testing.
 
2. Regarding flexibility
All the components of system doors and Windows are already fixed according to different performances. Compared with ordinary doors and Windows, the selection range is relatively small, so the flexibility is low. Ordinary doors and Windows can be flexibly configured with their own components according to one's own needs. System Windows and doors are serialized and standardized products. Their groove structure, material supply, etc. have strong exclusivity and incompatibility. Only the series can be selected according to the engineering requirements, and generally, no research and development is carried out for individual projects. Ordinary door and window materials can be selected from both domestic and foreign manufacturers, and temporary molds can also be made, offering strong flexibility.
 
3. Software aspect
System Windows not only offer products but also provide design software, design manuals, procurement manuals, processing manuals, specialized equipment and technical service support, forming a complete industrial chain. The quality of ordinary doors and Windows depends on the level of the designers and the processing and installation capabilities of the door and window enterprises.
 
4. Regarding after-sales service
The warranty period of system doors and Windows is longer than that of ordinary doors and Windows. The quality guarantee of system doors and Windows includes not only the engineering warranty of the door and window unit but also the warranty of the product's lifespan by the system company. In addition, brand specialty stores can carry out simple repairs. However, ordinary doors and Windows often have no after-sales service. When they break down, homeowners don't know who to turn to for repair.
 
What are the standards for system Windows and doors
Wind pressure resistance
It refers to the performance of exterior doors and Windows not being damaged under the action of wind pressure. For instance, it is not prone to cracking, profile damage, glass breakage, bonding failure, and opening obstacles caused by loose hardware. There are a total of 9 levels. The average standard of system doors and Windows reaches level 6 (with a basic wind pressure value coefficient of 0.8KN/㎡), and imported system doors and Windows can reach the highest level.
 
2. Air tightness
In simple terms, it refers to the ability of exterior doors and Windows to prevent air infiltration when they are normally closed. There are a total of 8 levels, with the average level of system doors and Windows reaching 6, and imported system doors and Windows can reach the highest level.
 
3. Water tightness
The ability of doors and Windows to prevent rainwater from seeping in during wind and rain when they are normally closed is divided into six levels. The average standard of system doors and Windows reaches level 4, and imported system doors and Windows can reach the highest level.
 
4. Thermal insulation
This is what is referred to as the K value in the professional terms of doors and Windows. System doors and Windows should not be lower than Grade 3 standards. Imported system doors and Windows can reach the highest level. Renas and Schuco respectively have series with k values below 0.8.
 
5. Sound insulation
Also known as sound insulation and noise reduction, it refers to the ability to weaken the sound transmission from the sound source to the listener. It is divided into six levels in total. System doors and Windows should not be lower than level 3 standards, and imported system doors and Windows can reach the highest level.