Comparison of thermal performance between test cells with different coverage systems for experimental typical day of heat in Brazilian Southeastern

• Main Authors: Grace Tiberio Cardoso, Francisco Vecchia
• Format: Article
• Language: English
• Published: KeAi Communications Co., Ltd. 2014-09-01
• Series: Frontiers of Architectural Research
• Subjects: Light Green Roof (LGR); Thermal performance; Dynamic Climatology; Internal temperatures; Spatial distribution; Experimental typical day
• Online Access: http://www.sciencedirect.com/science/article/pii/S2095263514000260

This article shows experimentally the thermal performance of two test cells with different coverage systems, Light Green Roof (LGR) and ceramic roof by analyzing internal surface temperatures (IST) in the ceiling and dry bulb temperatures (DBT). The objective was to evaluate the spatial distribution of temperatures in buildings according to spatial and temporal Dynamic Climatology approaches. An experimental, typical day for heat conditions was determined. The data of the main climatic variables provided by an automatic weather station and temperatures inside the test cells were collected using thermocouples installed such that the entire space is included. The results led to the conclusion that the LGR has a balanced IST and DBT spatial distribution compared with ceramic roofs. Nevertheless, the analysis of the thermal performance is only one of the variables that must be considered when developing a construction proposal that is adapted to the context. The manner in which the thermocouples were placed inside the test cells also showed the importance of specifying the location of the sensors in experimental studies on the behavior and thermal performance of buildings.