A thermal break is a material with low thermal conductivity incorporated into a building component or system to reduce or prevent heat transfer. In building design, thermal breaks are commonly used in building envelopes, such as windows, doors, and curtain walls, to improve energy efficiency and reduce heat loss or gain. By separating two materials with different thermal properties, such as aluminum and steel, a thermal break can prevent the transfer of heat and maintain a more consistent indoor temperature. This can result in lower energy costs, improved occupant comfort, and reduced greenhouse gas emissions.
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