本规范规定了减轻新建筑物和现有建筑物新增建筑物围护结构中热桥的最低设计和施工要求。它适用于具有混凝土墙或砖墙的建筑物；砌体饰面，包括附着在框架墙上的饰面；以及穿过建筑围护结构的阳台或构件。它还为这些建筑中的金属热桥制定了标准。

This code prescribes minimum design and construction requirements for mitigating thermal bridges in the building envelopes of new buildings and additions to existing buildings. It applies to buildings having concrete or masonry walls; masonry veneer, including veneer attached to frame walls; and balconies or components that extend through the building envelope. It also has criteria for metal thermal bridges in these buildings.