TY - JOUR
TI - Relation between indoor thermal environment and renovation in liege residential buildings
AU - Singh Manoj Kumar
AU - Mahapatra Sadhan
AU - Teller Jacques
JN - Thermal Science
PY - 2014
VL - 18
IS - 3
SP - 889
EP - 902
PT - Article
AB - Indoor thermal environment monitoring has been done in 20 residential  buildings of Liege city followed by questionnaire based comfort survey  amongst the occupants of 85 houses in order to record their preference and  expectations about indoor thermal environment in winter and spring season. It  is found from the analysis that change of glazing has a minimum or even  sometimes an adverse effect on the existing indoor environment due to the  absence of proper insulation of the rest of the building envelope. It is  observed that in winter there is a sudden drop in indoor temperature and also  overheating in summer. This is due to unplanned installation of glazing which  actually increases the fenestration area ratio leading to higher indoor  temperature fluctuation and causes discomfort. It is also important that the  occupant’s preference and expectations as well as overall assessment of  indoor environment needs to be consider towards energy efficiency  improvement.