Transient thermal response of opaque building envelope elements: EPFL campus case study

Abstract The building envelope acts as a shield against varying weather conditions and modulates thermal energy flow between outdoors indoors. choice of layers used in the assembly impacts heat loss gain through wall structure potentially can affect comfort Thus, plays an essential role performance building. Optimizing cladding design has recently become increasingly important to reach sustainable development strategies for reducing greenhouse gas emissions by 2050. This paper aims analyze several types on EPFL campus Lausanne compare their impact envelopes. assemblies constructed different years vary composition thermo-physical properties used. these parameters is evaluated comparing variation flux temperature fluctuations within structure. results obtained highlight importance materials Due variations inertia assemblies, time shift more than 3 hours transient response fluctuation outdoor observed.