If you want to choose doors and windows with good thermal insulation, you have to pay attention to these points!
Nowadays, when people choose doors and windows, they generally have a greater demand for thermal insulation, heat preservation, and sound insulation. So if you want to choose doors and windows with good thermal insulation, what aspects should you focus on?
1. Thermal insulation of doors and windows is inseparable from important sealing
The thermal insulation sealing of doors and windows mainly depends on whether the rubber strips between profiles are tightly overlapped. Does the sealing structure (profile structure) have three sealing designs for the outside, inside, and middle seals?
In addition, the isothermal design of the same straight line (or plane) inside the profile also contributes to the thermal insulation effect of doors and windows. When the hot and cold air inside and outside the doors and windows are exchanged, the two broken bridges are in the same straight line, which is more conducive to forming an effective cold-hot bridge barrier, which can reduce the conduction of cold and heat in the air and reduce unnecessary heat loss.
2. The core of thermal insulation-thermal insulation strips
The quality of the thermal insulation strips determines the thermal insulation effect of aluminum alloy doors and windows. Many people think: that the larger the value of the window series, the better the thermal insulation effect. It is not. In the K value of doors and windows, the influence of frame and sash (aluminum profile) accounts for 20%-30%. Increasing the width of insulation strips is an important way to improve the thermal insulation capacity of doors and windows.
3. The key to thermal insulation - glass
The heat in and out is mainly carried out through the glass of doors and windows. Therefore, improving the configuration of glass is the most direct solution to the thermal insulation problem. To improve the thermal insulation of the whole window, the editor recommends choosing the glass according to needs: choose from hollow glass, three-glass two-cavity, Low-e hollow glass, Low-e three-glass two-cavity, and other glass types. For cold regions such as North China and Northeast China, three-glass two-cavity glass can be equipped with additional Low-e glass; the glass aluminum spacer can also be replaced with warm edge strips with lower thermal conductivity to further reduce the heat exchange between indoors and outdoors.
It is worth mentioning that filling the profile cavity structure with insulation materials (sponge or foam glue) can also improve the overall thermal insulation performance of doors and windows. The principle is to fill the cavity between the glass and profiles, and between the insulation strips with insulation materials to reduce the exchange rate of cold and hot air between the cavities.