These cantilevers are actually window openings, without the possibility of being operated, but will provide what is called a fixed opening in relation to the degree of natural lighting. Even if they are not movable, there is a major advantage to requiring them in that they will provide extra illumination.
The reason lies in the fact that the frame of a movable can covers the perimeter in a percentage of at least 10% of the space that remains for the package with insulating glass. As such, by eliminating the necessary profiles, the glazing space will be larger and the amount of natural light will be greater.
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