TY - JOUR
TI - Assessment of the sustainability of façade refurbishment
AU - Petrovski Aleksandar
AU - Petrovska-Hristovska Lela
AU - Ivanović-Šekularac Jelena A
AU - Šekularac Nenad D
JN - Thermal Science
PY - 2020
VL - 24
IS - 2
SP - 991
EP - 1006
PT - Article
AB - Dominant share of the residential stock in the European countries has an  exploited service life and is in a need for façade refurbishment. This paper  contributes with an establishment of a tool for assessment of the  sustainability of design options for refurbishment of buildings` façade. The  tool is based on a multicriteria system, assessing four design criteria,  relevant to the process of façade refurbishment. The criteria are evaluated  by several surveyed participants and by utilizing the Analytic-Hierarchic  Process (AHP), the indicators` weights are calculated and used for  operationalization of the assessment tool. Further, the tool is used on  several façade refurbishment design proposals assessment. The case-study on  which these proposals are applied is a residential building situated in  Skopje, Western Balkans, Europe. Each of the façade proposals is assessed  regarding their energy performance, CO2 emissions, investment costs and  return of investment. Further, the results of the LCA analysis of all of the  applied materials shows the contribution of each of them regarding the LCA  indicators. The results of the research show that the use of wood and  modified wood products as façade elements used for buildings` façade  refurbishment can substantially decrease the greenhouse emissions and  contribute to the carbon offsetting. However due to the higher investment  costs, the return of the investment is longer, leading to lower  sustainability assessment ranking. It is concluded that the refurbishment of  the façade with a conventional contact façade has the highest ranking on  sustainability, followed by façade refurbishment with contact façade  combined with only roof refurbishment/ glazing refurbishment or both. Also,  the modified wood wall types show high sustainability ranking regarding  their refurbishment potential.