What is the impact of thermal bridging in a building's envelope?

Thermal bridging occurs when a more conductive material, such as metal or concrete, creates a path for heat to flow through a building's envelope, bypassing the insulating material. This effect can significantly increase heat loss during colder months and can also lead to heat gain in warmer months. As a result, areas where thermal bridges exist may experience temperature differences that cause discomfort, lead to moisture problems, and ultimately contribute to higher overall energy costs due to increased heating or cooling demands. Addressing thermal bridging is essential in building design and construction to maintain energy efficiency and comfort levels within the building.