Can the use of reinforced aluminum alloy thermal insulation external casement window effectively reduce the condensation problem?
Publish Time: 2025-07-21
In modern buildings, windows are not only an important part of lighting and ventilation, but also bear multiple functions such as heat preservation, sound insulation, and moisture-proof. Especially in areas with high humidity or large temperature differences, the problem of condensation often troubles residents. Water droplets appearing on the surface of windows or the edge of window frames not only affect the appearance, but may also cause mold on the walls, deformation of window frames, and even affect the indoor air quality.
1. Causes of condensation
The formation of condensation is mainly due to the condensation phenomenon when water vapor in the indoor air encounters the surface of objects with lower temperatures. In winter, the indoor temperature is high and the humidity is high, while the outdoor temperature is low. If the thermal insulation performance of the window is poor, when the indoor hot air contacts the cold window frame or glass surface, condensation will form on the inside of the glass or the edge of the window frame. This phenomenon is particularly common in ordinary aluminum alloy windows or single-layer glass windows.
2. Why are traditional aluminum alloy windows prone to condensation?
Although traditional aluminum alloy windows have high strength and good durability, aluminum alloy itself is a good thermal conductor with a high thermal conductivity, which makes it easy for heat to be quickly conducted through the window frame. In winter, the surface temperature of the window frame on the indoor side may be lower than the dew point temperature of the indoor air, causing condensation. This is also the fundamental reason why traditional aluminum alloy windows are prone to condensation and dripping in cold seasons.
3. Structural optimization of thermal insulation aluminum alloy windows
In order to solve this problem, modern reinforced aluminum alloy thermal insulation external casement windows use "broken bridge aluminum alloy" technology. The so-called "broken bridge" is to add a layer of thermal insulation material (such as polyamide nylon) in the middle of the aluminum alloy profile to separate the inside and outside of the window frame, thereby significantly reducing the efficiency of heat conduction. This design greatly reduces the thermal conductivity of the window frame and effectively improves the overall thermal insulation performance of the window.
4. Use of high-performance glass
In addition to the optimization of the window frame structure, reinforced aluminum alloy thermal insulation external casement windows are usually used with hollow glass or three-glass two-chamber glass. This type of glass is filled with inert gas (such as argon) and uses warm edge spacer technology to further reduce heat transfer. The inner surface temperature of the glass can be maintained at a high level, away from the dew point temperature of the indoor air, thereby greatly reducing the probability of condensation.
5. Improved sealing performance and reduced moisture penetration
Condensation not only comes from temperature differences, but also may cause outdoor moisture to penetrate due to poor window sealing. Reinforced aluminum alloy thermal insulation external casement window adopts a multi-channel sealing structure design, combined with high-quality sealing strips, to effectively prevent the penetration of air and water vapor. This high airtightness design not only improves the energy saving effect, but also reduces the possibility of moisture entering the indoor space from the source, thereby indirectly reducing the formation of condensation.
6. Drainage advantages of external casement window design
Reinforced aluminum alloy thermal insulation external casement window mostly adopts an external opening structure. This design not only has good ventilation performance, but also in rainy weather, the seal between the window sash and the window frame is tighter to prevent rainwater from flowing back. At the same time, there is usually a concealed drainage groove under the window frame, so that even if a small amount of condensation or rainwater enters the window frame, it can be discharged in time to avoid problems such as mold and corrosion caused by water accumulation.
Reinforced aluminum alloy thermal insulation external casement window effectively improves the thermal insulation performance of the window through broken bridge technology, high-performance glass, multi-channel sealing system and structural optimization design, reduces the temperature difference between the window frame and the glass surface, and thus significantly reduces the generation of condensation. For users who pursue a comfortable and healthy living environment, choosing this type of window can not only improve the indoor temperature and humidity environment, but also improve the overall living quality.
