Technoform’s insulated high-performing edge bond technology combats the heat loss buildings can experience through low-performance windows. By creating a cavity in panes of glass, from double to triple glazing, the warm edge spacer reduces heat transfer and thermal conduction to reduce building energy output and lower carbon emissions. Additionally, in cold-weather climates, the spacer resists condensation, reducing the risk of mold and downdrafts without sacrificing design and durability. 
https://www.technoform.com/en/solutions/insulating-glass-edge-bond/hybrid-warm-edge-spacers