对几种木质和金属桁架屋顶结构进行了实验测量和三维热模拟。主要目的是评估屋顶的木质或金属结构部件产生的热短路的实际影响。利用几种墙体和屋顶结构的实验数据验证了计算机建模程序。这项实验和理论研究集中于不同传统和非传统方法的热效率，以改善木框架和金属框架屋顶的热性能。事实证明，传统的屋顶结构构件建造方法会导致性能不佳。关键词:1997年，热桥，屋顶，木材，钢材，实验，计算，测量，部件，热阻，热损失，气候室，热流，隔热，温度，热性能描述:研讨会，ASHRAE Trans。1997年，第103卷，第一部分

Experimental measurements and three-dimensional thermal modelling were undertaken for several configurations of wood and metal truss roofs. The main goal was to estimate the real effects of thermal shorts generated by wooden or metal structural components of roofs. The computer modelling procedure was validated using experimental data for several wall and roof configurations. This experimental and theoretical study focused on the thermal efficiency of different traditional and unconventional methods for improving the thermal performance of wood- and metal-framed roofs. It proved that the traditional method of constructing structural components of roofs can cause poor performance.KEYWORDS: year 1997, Thermal bridges, roofs, wood, steel, experiment, calculating, measuring, components, thermal resistance, heat loss, climate chambers, heat flow, thermal insulation, temperature, thermal properties