Types:
fixed spot skylights
skylights fitted with an opening flap to ventilate the building
Designation: skylights are most frequently used in single-floor hall-type structures with inadequate natural light entering through the windows
Advantages of using skylights:
the interior lighting is more effective than through the windows (the light from a single skylight covers the working area 5.5 times larger than a window of the same size)
power savings on lighting the rooms
possibility to work in natural light instead of artificial light
possibility to use skylights to air the rooms