Why do you need spacers?
Spacers are used in windows to keep two or more panes at the same distance. A gap is created between the circumference of the spacer and the protruding glass edge. This is filled with an elastic sealing layer, so that an edge seal is created. It prevents the filling of the space between the panes (inert gas) from escaping from this space or water vapour from penetrating into this wiper space. One spacer for double glazing, two spacers for triple glazing. A distinction is also made between the materials of the spacers, particularly with regard to their insulating properties.