What is thermal bridging?

Thermal bridging refers to breaks in a building's insulation that allow for increased heat transfer. This phenomenon occurs when there are conductive materials, such as wood or metal, that bridge the insulation layer, enabling heat to flow through these areas more easily compared to the insulated sections. As a result, thermal bridges can lead to significant energy loss and can negatively affect the overall energy efficiency of a building.

In the context of building construction, recognizing and addressing thermal bridging is crucial for maintaining the desired performance of insulation systems, as it can lead to cold spots within walls, ceilings, or floors, potentially resulting in condensation, mold growth, and increased energy costs. This understanding emphasizes the importance of designing buildings with continuous insulation strategies that minimize or eliminate these thermally conductive pathways.