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Selective or low emissive glass, wich to choose?

Selective or low emissive glass, wich to choose?

When choosing a glass for a window, one of the factors to consider is its solar exposure: low emissive glass glass for low-irradiated residential areas and selective glass for those subject to strong irradiation. Let's try to understand why.

The insulating glass is made up of two monolithic glass sheets usually of 4 mm, or two laminated glass plates, interposed by a channel which can be of aluminum, steel or insulating material.

The most commonly used solution is that of low-emission insulating glass with the addition of argon gas, which increases the thermal dissipation of the house to the outside. This allows to retain the heat that is produced in winter to heat the house, but not to insulate it from the radiant heat that in the summer periods affects the 3/4 of a building: the southwest side

The selective insulating glass (also called 4 seasons) is made with a magnetron treatment (a chemical-physical process that deposits and fixes on glass plates silver ions) which has the task of reflecting a high percentage of solar rays while continuing to function as a low emissive glass during the winter.

It can therefore be deduced that all the fixtures exposed to North, North / East, North / West (where there is low radiation) can be equipped with low emissive glass with argon gas, while facades facing East, South / East , South or South / West it is preferable to use selective insulating glasses.

Choosing the right insulating glass combined with the right window system has a significant impact on the energy saving of a home and the well-being of the living environment.