How to accurately judge the quality of doors and windows? In-depth analysis of the four core elements of door and window structure
In the journey of building a dream home, doors and windows are not only the boundaries of space, but also the embodiment of the quality of life. They stand quietly, but bear the heavy responsibility of resisting wind and rain, regulating temperature and humidity, and isolating noise. Therefore, choosing a high-quality door and window is to build a solid line of defense for the home, so that warmth and tranquility are within reach. So, how can we discern the pearls in the dazzling door and window market and select the real boutique?
Profile strength
The cornerstone of stability and safety
Profile structure is the root of the quality of doors and windows. Whether the profile structure is safe and stable, first of all, it depends on the selection of door and window profiles. 6063-T5 original aluminum is preferred, which has the characteristics of high tensile strength, not easy to deform, corrosion resistance, and toughness. In terms of aluminum wall thickness, according to the international standards for aluminum profiles, the international mandatory minimum standard is 1.4mm, and the latest implementation standard is 1.8mm, which is often called the new national standard.
Whether the profile structure is safe and stable, the second thing to look at is the cavity. The number and volume of the cavity have a key impact on the rigidity of the entire structure. The more cavities, the better the structural rigidity of the entire profile. Strengthening the profile strength can improve the structural rigidity of the aluminum alloy profile by increasing the number of cavities and reducing the size of the cavity.

Sealing performance
The key to sound insulation, waterproofing and energy saving
Sealing performance is one of the important indicators for measuring the quality of doors and windows. System doors and windows should have three basic sealing designs: the first seal on the outdoor side is mainly used to block water and prevent rainwater from penetrating; the second seal in the middle isobaric strip is the key to sound insulation and water blocking, which is crucial to improving the overall performance of doors and windows; the third seal on the indoor side mainly plays a role in blocking air circulation and balancing the pressure in the cavity. These three seals together constitute the waterproof, sound insulation and energy-saving barrier of doors and windows, creating a quiet and comfortable indoor environment for residents.
Isotherm design
The secret of thermal insulation
Isotherm design is an important criterion for measuring the thermal insulation performance of doors and windows. The ideal design of doors and windows should ensure that the glass sash conversion frame and the insulation strip of the main frame are on the same horizontal line to form a vertical isotherm. Such a design can effectively reduce heat transfer and improve the thermal insulation performance of doors and windows. On the contrary, the thermal insulation effect of doors and windows with serious misalignment of insulation strips will be greatly reduced. Therefore, when choosing doors and windows, be sure to pay attention to whether the isotherm design is reasonable.

Multi-cavity structure design
Dual guarantee of safety and energy saving
The cavity structure is directly related to the overall performance, living comfort and safety of doors and windows. Choosing a multi-cavity structure can significantly improve the thermal insulation, sound insulation, thermal insulation performance and structural stability of doors and windows. The multi-cavity design makes each cavity like an independent insulation layer, effectively isolating the indoor and outdoor temperature transfer, reducing energy consumption, and using more energy-saving. At the same time, when external sound enters one of the cavities, the cavity will absorb the sound and reflect it to the next cavity, so that the energy of the sound gradually weakens in each cavity until it disappears completely, which can effectively reduce noise interference. In addition, the multi-cavity can enhance the stability of doors and windows, so that they can better resist external forces under severe weather conditions such as strong winds, prevent deformation and damage, and improve durability.