Comportamiento de las bandas de rotura de puente térmico en tabiques ligeros con entramado de acero = Performance of thermal break strips in lightweight steel framed partition walls

In this paper, the overall surface-to-surface thermal resistance (R-value) of ten different configurations from interior partition LSF walls were measured under controlled laboratory conditions. The laboratorial tests were performed using a mini hot box apparatus with a set of two climatic chambers, being the thermal performance of LSF walls measured using the heat flux meter method. The experimental results were compared with finite element numerical simulations. Three Thermal Break (TB) strips materials and three TB locations are assessed and compared with the thermal performance of a reference wall without TB strips. Regarding the TB strips materials, it was concluded that the best thermal performance is achieved by aerogel. Considering the TB strips location, the application inner or outer side, presents very similar performances and the application on both sides of steel stud shows a relative significant thermal performance increase. The thickness of the TB strips also has a significant influence on the wall thermal resistance.