Thermal Barrier Thresholds

These thresholds are designed to eliminate the transfer of hot and cold temperatures from one side of the threshold to the other.  This is done by separating the outside metal parts from the inside with polyurethane, greatly reducing the amount of heat or cold transferred through the frames. This is known as a thermal break or thermal barrier.  The thresholds are insulated against heat and cold conduction allowing you to build a healthy, efficient, carbon, and cost-saving green building.

Pemko 253xF Thermal Barrier Threshold with Frost Guard (8-1/8")
Pemko 253x4 Thermal Barrier Threshold with Frost Guard (7-1/8")
Pemko 253x3 Thermal Barrier Threshold with Frost Guard (6-1/8")
Pemko 252X3 Thermal Barrier Threshold, 36"