Heat Bridge Solutions with PA66 Thermal Break Strips | POLYWELL

The term "heat bridge" is a direct synonym for "thermal bridge" and is used interchangeably to describe the same physical phenomenon within a building's construction. It refers to a component or assembly that exhibits a higher heat transfer rate than the surrounding materials, effectively creating a bridge for thermal energy to cross the building envelope. The use of "heat bridge" emphasizes the transfer of heat energy (thermal energy) through this conduit. Common examples are ubiquitous in construction: metal window and door frames that connect the interior and exterior, uninsverted concrete slabs that form balconies, steel I-beams embedded in insulated walls, and even the metal ties in masonry cavity walls. These elements, due to their high thermal conductivity, become pathways for heat to escape during the heating season and enter during the cooling season. The negative consequences are identical to those of a thermal bridge: significantly increased energy consumption for space conditioning, a reduction in the interior surface temperature of the bridge, and a high likelihood of condensation and subsequent mold growth. The term underscores the function of the element as a conduit for unwanted heat flow, and its identification and remediation are central to the design and construction of high-performance, energy-efficient, and durable buildings. Whether referred to as a thermal bridge or a heat bridge, the focus remains on implementing design solutions like thermal breaks and continuous insulation to block this unintended energy pathway.