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Low-E glass has the characteristics of low heat transfer coefficient and reflection of infrared rays. Its main function is to reduce the radiation energy transfer of far infrared rays indoors and outdoors, while allowing solar radiation to enter the room as much as possible, thereby maintaining the indoor temperature. Visible light transmission is high, and the transmission of Low-E glass is properly controlled, so that it can not only reflect part of the solar radiation, but also reduce the transmission of indoor and outdoor thermal radiation energy, thereby forming a window for isolating radiation energy; Low-E glass The visible light transmission of the product is moderate, and the color of the reflected light is mostly light blue, which has a certain decorative effect. Therefore, this product has stronger applicability and a wider selection range, and can be widely used in high, Middle and low latitude areas; it has the function of blocking external heat from entering the room in summer.
Any coated glass will limit the transmission of visible light to varying degrees while limiting the transmission of solar thermal radiation. Double silver Low-E glass can block more solar thermal radiation heat energy than single silver Low-E glass. In other words, under the same light transmittance, the double silver Low-E has a lower shading coefficient Sc, which can filter sunlight into a cold light source to a greater extent.
The heat transfer coefficient of double-silver Low-E glass is lower than that of single-silver Low-E, which can further improve the thermal insulation performance of external windows, and truly achieves warm in winter and cool in summer. Simply put, because the double silver Low-E glass greatly reduces the heat exchange through the glass in the indoor and outdoor environments, when the air conditioner is heating or cooling, the air conditioner can last longer after the indoor temperature reaches the set temperature. Time in standby mode, thus saving power consumption.
Low-E glass has the following characteristics:
(1) It has good permeability to visible light and can block infrared radiation.
(2) Reduce indoor energy dissipation to the outdoors in the form of thermal radiation, maintain indoor temperature, reduce heating costs, and have high visible light transmittance.
(3) The permeability is comparable to that of ordinary glass.
(4) The insulating glass made of low-emissivity coated glass can more effectively improve the thermal insulation capacity.
(5) It is made of special film layers such as ITO. Compared with online low-emissivity glass, it has the characteristics of high visible light transmittance and low solar radiation rate.
The advantages of double silver Low-E glass can be briefly summarized as follows:
1. Under the same glass combination, double silver Low-E glass has lower emissivity and lower heat transfer coefficient (U value) than single silver Low-E.
2. Double silver Low-E glass has a lower shading coefficient or Sc value.
3. Under the same shading coefficient (Sc value), the visible light transmittance is higher than that of single silver Low-E. In a word, the double silver Low-E glass highlights the shielding effect of the glass on solar heat radiation, and skillfully combines the high light transmittance of glass with the low transmittance of solar heat radiation, and successfully solves the problem of high light transmittance. It is a problem that coexists with the dual advantages of low U value and Sc value, so it has better energy saving effect, which is an advantage that no other glass can have.
The main difference between a Low E glass and an ordinary glass is that Low E glass has a very thin coating applied to one side of the glass.
Absolutely! Low-e glass options are definitely worth the investment.
Low-E is a fully clear window coating. It differs from tinted glass, which blocks light but does not reduce heat transfer. So if you choose to add a low-e coating to your replacement windows, you won't sacrifice visibility for energy efficiency.