How does Low-E glass work in summer and winter?
In winter, the indoor temperature is higher than the outdoor temperature, and the far-infrared heat radiation mainly comes from the room. Low-E glass can reflect it back to the room so as to keep the indoor heat from escaping. For part of the solar radiation from the outside, Low-E glass can still allow it to enter the room, and this part of energy is absorbed by indoor objects and then converted into far-infrared heat radiation and left indoors.
In summer, the outdoor temperature is higher than the indoor temperature, and the far-infrared heat radiation mainly comes from the outside, and the Low-E glass can reflect it to prevent the heat from entering the room. For outdoor solar radiation, Low-E glass with a low shading coefficient can be selected to limit its entry into the room, thereby reducing cooling costs (air conditioning costs).
