A curtain wall architectural system is an outer covering of a building in which the outer walls are non-structural, non-load bearing. Curtain wall systems are used when architects want to keep weather out, but also use lightweight, cost-saving materials. These systems typically use aluminum framing members, which are filled with glass. A key component of curtain wall systems is the thermal break. A thermal break is a small piece of extruded plastic whose purpose is to prevent interior metal from coming into contact with exterior metal, which prevents heat loss. Hi-Tech Extrusions has been manufacturing thermal breaks for curtain wall architecture for over 10 years. We can produce thermal breaks in PVC, TPO or co-extrusion.