Glass facades can be semi-structural or structural. Both types have an internal binding element: a grid of aluminium vertical and horizontal bars. The outside finishing of the semi-structural glass facades consists of minimal standard coverings. Structural glass facades, on the other hand, do not have a uniform appearance. Here, contacts are sealed with a putty that is resistant to UV rays and permanently elastic. Glass facades add value and to business and residential buildings alike, appearing modern and attractive. High-energy efficiency is also among their advantages. Architects and investors appreciate facades of this type, as they are suitable for different styles of buildings.