Most common in public buildings are sectional parking garage doors. Dimensions are up to the customer. 
The operation of such a door is customer's choice, such as remote access, proximity card access or vehicle license 
plate recognition. Required for this type of door, given the large number of users, 
is to have reliable safety and signaling systems such as photocells, signal lamps, traffic lights and even motion sound.
Another particularly important advantage of thesectional garage door in a public building is the thermal insulation 
characteristics of the sandwich panels of the door which benefits the energy efficiency of the building. 
One more important key factor for the proper choice and maintenance in years is the 
correct calculation of the springs according to the door dimensions, mode of usage based on number of passing users. 
It is not excluded that in some cases this door is on the façade and is accessible and visible, 
which implies a wide choice of color and appearance of the panels with refrence to the aesthetic appearance of the door. Sectional doors are in principle absolutely silent, they isolate to the maximum the opening against cold, 
moisture or water penetration and wind pressure. It is essential that this type of doors should undergo 
once per year a regular maintenance check-up to ensure their safety and reliability for consumers.