Energy Saving Glass

Energy Saving Glass

Energy saving is important to reduce consumption and protect our environment. By replacing or renewing low-energy windows with more efficient ones with high-performance glass, we can achieve a significant impact on the energy efficiency of our homes and work spaces. Windows must guarantee an adequate level of insulation both in winter and summer. Maintaining a temperature of around 20°C in winter and 25°C in summer is the best. To achieve this level of temperature insulation, glass is classified into three groups.

Highly recommended for large glass surfaces, roofs and southern orientations.

Its use is recommended in cold climates, shaded areas and north-facing orientations. It prevents the passage of heat (infrared waves), and can also be used in warm climates with permanent sun if protected from direct sunlight by awnings, blinds…

These glasses are the most sophisticated on the market and since they combine the advantages of solar control and low emissivity, they can be used in practically all situations. There is also a wide selection so you can choose the one that best suits your project.

These are all Attenuated Total Reflectance (ATR) glasses. The main values that are measured to determine the insulation offered by a glass are:

Thermal transmittance coefficient (U-value)

The thermal transmittance coefficient (U-value) measures the temperature exchange between the inside and outside of the window. The lower the U-value, the greater the insulation capacity.

Solar factor (G value)

The solar factor (G value) is the percentage of solar radiation that the glass lets through. The lower the solar factor, the less solar radiation enters the interior and therefore, the less heat enters.

According to the production system, coated glasses can be of two types:

Hard Coat Glass

The coating is applied hot after the float glass is removed. (Online). These coatings are quite resistant to handling but have insulation values that are less than optimal.

Soft-coat glass

The coating is applied in a subsequent process (Offline) using a complex process called Coater. This type of glass achieves much higher energy saving values, however, its coatings are much more delicate and only glass factories specially prepared for processing them should work with them. Cristalería Encinas has all its procedures adapted and approved to be able to work with energy-saving glass from both systems, having specialized in the latter, which are much more sophisticated and insulating.

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