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Traditional buildings since many centuries have used lime as a binder and finishing material. However, in contemporary construction practices, lime mortar and lime plaster have been replaced by cement mortar and cement plaster. Lime is a sustainable and self-healing material whose strength increases with time. In addition to its pleasing appearance, lime has excellent moisture buffering properties. Buildings with lime mortar and lime plaster are also breathable due to moisture transfer across the envelope. The objective of this work is to compare the hygrothermal performance of lime and cement plaster. For this purpose, two identical test cells of 1 m³ volume were constructed with brick as masonry material. One of the test cells was built with cement mortar and cement plaster, while the other cell was made with lime mortar and lime plaster. Environmental variables such as indoor air temperature, indoor relative …