Sliding automatic doors consist of aluminum shapes and filling - the transparent, opaque or combined material of various type and design execution. They can be built in entrance group of buildings as the entrance platform that ensures big safety of heat in the hall. Thanks to universality of thickness of aluminum shapes (35 mm), in a design of sliding doors it is possible to establish a double - glazed window that will allow to increase their heat - shielding properties. Sliding automatic doors are calculated on intensive operation in buildings with a big flow of visitors - in trade and entertaining and business centers, hotels, restaurants and so forth.