DOI: 10.5593/SGEM2014/B62/S27.078


M. P.Samanta, M. Popov, M. A. Szitar
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-21-6 / ISSN 1314-2704, June 19-25, 2014, Book 6, Vol. 2, 605-612 pp

During the urban development of the communist era in the 1970s, entire neighborhoods of collective dwellings were erected in order to accommodate the wave of people working in the new factories. Standardized and repeated blocks of flats were massively spread throughout the country, offering identical living conditions for all their inhabitants. After the fall of the totalitarian regime, 96% of the inhabitants living in the blocks of flats became owners of their apartments, one of the highest rates of ownership in Europe. Nowadays, almost 60% of the Romanian urban population lives in these socalled grey neighborhoods. The renovation of these buildings started in the middle of the 90’s, as a response to their technical degrading. Most common interventions resulted in the addition of pitched-roofs over the deteriorated flat roofs in order to prevent infiltrations. The real estate development from the 2000s treated the so-called thermal rehabilitation program into a business opportunity by using the slope roof as a livable attic connected to the existing block. As a result, new apartments were added, increasing the urban density levels, but without offering a significant improvement for the existing inhabitants. The existing Thermal rehabilitation program consists in cladding the façade with a polystyrene base thermal envelope system, and, in some cases, the replacement of the openings with efficient doors and windows. In this case the reduction in energy demands is of 30-40%. The plumbing and heating systems are not included therefore energy management systems are not present. By contrast, sustainable retrofitting embodies an integrated approach concerning social, economic and environmental aspects. The present article describes the detailed aspects of the two directions of intervening on this specific Romanian building stock. Multiplication represents an advantage for the implementing of both measures (almost 40.000 blocks of flats exist in Romania). The market viability of the two types of intervention is translated in two different industrialization processes detailed in this paper.

Keywords: retrofitting, green design, sustainability, green energy, energy efficiency