Thermal Bridge

Question 1

What is a thermal bridge?

Answer 1

A thermal bridge is a part of the building envelope where heat transfer is significantly higher due to material properties, geometry, or structural connections​

Question 2

What are the main types of thermal bridges?

Answer 2

Material Thermal Bridges: Caused by materials with high thermal conductivity (e.g., steel).
Geometric Thermal Bridges: Due to building geometry, like corners or edges.
Structural Thermal Bridges: Resulting from structural connections, like balconies or beams

Question 3

What is the formula for heat loss through a thermal bridge?

Question 4

What is linear thermal transmittance (ψ)?

Answer 4

quantifies the heat transfer rate per unit length of a thermal bridge, measured in W/mK

Question 5

How does a thermal bridge impact energy performance?

Answer 5

Thermal bridges increase heat losses, lower energy efficiency, and can lead to surface condensation and mold growth​