What is thermal bridging and why is it significant?

Thermal bridging refers to the phenomenon where materials with high thermal conductivity, such as metal or concrete, create a pathway that allows heat to flow more easily through a building's envelope. This is significant because it can lead to increased energy loss and decreased overall efficiency in a building. When certain parts of a wall or roof conduct heat much better than the surrounding insulation, it can create cold spots inside the structure and result in higher heating or cooling costs.

Avoiding thermal bridges is crucial for maintaining the energy efficiency of buildings, as they can undermine the effectiveness of insulation and lead to increased energy demand, which ultimately affects both energy bills and environmental impact. By understanding and addressing thermal bridging during the design and construction phases, builders can enhance the thermal performance of a building, improve comfort for occupants, and comply with energy efficiency standards.