13.9mm PA66GF25 Hollow Chamber Thermal Break Polyamide Insulating Profiles

Aluminum is a highly thermal conductive material that will rapidly transfer exterior climatic temperature unless something is done to stop the thermal conduction. A Thermal Break (also known as Insulating Profile, Thermal Barrier Strut, Insulating Bar) is a poor conductor of heat. It separates the outer and inner aluminum frames thermally from each other. This plastic thermal barrier profile acts as a barrier to prevent direct heat transfer through highly heat conductive aluminum profile. 

A POLYAMIDE thermal break system will improve thermal performance while maintaining the structural and long-term durability of the fenestration unit. Aluminum is 533 times more conductive than polyamide insulating strips. Thermal Strut involves two separate extrusions and joins them through the use of engineered structural polymide strut. Both the inside and outside aluminum profiles are extruded independently with a cavity that will ultimately receive the strut.