Thermal insulation:
In this article, the relationship between glasses used in windows and heat insulation to be applied in buildings will be examined.

According to the data of the Ministry of Energy and Natural Resources, 82% of the energy used in buildings is used for heating, and the share of this energy in the total energy consumed in our country is 26%. As it can be understood, the damage caused by a building with poor thermal insulation to the country’s economy and the environment is considerable. 40% of the heat container formed in the buildings is from the walls, 30% from the windows, and the remaining 30% from the roof, flooring, floor covering, etc. It is experienced at points. With a simple calculation, a 50% saving on windows will have a minimum effect of 15% on heating costs.

Heat Insulation Coefficient:
The thermal insulation value is evaluated over a coefficient (heat insulation coefficient), which is indicated by the symbol “U” and whose unit is W / m²K. The lower this value, the better the thermal insulation value. For example: Heat insulation coefficient of 4mm thick single glazing is 5.7 W / m²K, while the heat insulation coefficient of a standard double glazing is 2.9 W / m²K.

As can be seen from the example above, even if the glass is turned into insulating glass, heat transfer continues. As can be remembered from physics lessons, heat is emitted in 3 ways. By conduction, by convection and by radiation. The preference of double glazing instead of single glazing cut the heat transfer through conduction, but could not prevent the heat transfer by other means. In this system, the particles in the air gap move in the interstitial space and hit the two glass panels, causing the heat to be transferred between the inner and outer glass in a conventional way. To reduce this transfer effect, the glass interspace can be filled with gases with lower heat transfer value such as Argon, in this case the new heat insulation coefficient will be 2.7 W / m²K.

Low-E (Low Emissivity) Coated Glass
In order to prevent the heat transfer of these moving particles in the insulating glass space, the inner surface of the glass is covered with a special coating called Low-e. In case of using such a coating, the thermal insulation value decreases to 1.4 – 1.3 W / m²K in standard insulating glass and the thermal insulation value increases at least 2 times compared to standard insulating glass. In the case of argon filling, this value decreases to 1.1 W / m²K levels, which means 62% heat savings.

Insulating Comfort:
In addition to the ISICAM COMFORT Low-e coating produced by Şişecam in our country, it also has a shading effect in order to prevent the spread of heat through radiation. In this way, the rate of heating the indoor environment through solar radiation in summer is reduced and air conditioning costs are significantly reduced.

Other Benefits of Using Low Diffusion Glass:
Low-e coated glasses also prevent the transfer of harmful UV rays from the sun. In this way, the items used are prevented from fading, cracking and becoming brittle over time.
It delays the formation of sweating (condensation) & condensation considerably. Condensation; It is the condensation of water vapor suspended in the air at points that fall below a certain temperature depending on the indoor temperature and humidity level. For example; If the internal ambient temperature is 22 ° at 55% humidity level, condensation will occur at points reaching 12.5 ° and below surface temperature. The condensation limit is 14.4 ° for 24 ° ambient temperature at the same humidity level. In low-e coated glasses, since the internal glass temperature (except for exceptional outdoor conditions) does not usually decrease to these levels, it can be said that condensation almost never occurs.