TY - JOUR
T1 - Critical Performance Aspects of Retrofitting Apartment Buildings Using a Multifunctional Façade System
AU - Paiho, Satu
AU - Ojanen, Tuomo
AU - Pinto-Seppä, Isabel
AU - Paavola, Martta
N1 - Funding Information:
This project has received funding from the European Union's FP7 programme under grant agreement No 285411 (MeeFS Retrofitting. Multifunctional Energy Efficient Façade System for Building Retrofitting). The results of this study are partly based on work done in the FP7 project "MeeFS Retrofitting. Multifunctional Energy Efficient Façade System for Building Retrofitting" (www.meefs-retrofitting.eu) co-financed by the European Commission and developed together with the following partners: Acciona Infrastructures, Tecnalia, ASTingenieria, Gobierno de Extremadura (Spain), E&LArchitects, Greenovate Europe, CQFDComposites, TBC générateurs d'innovation, Antworks, Vipiemme solar, G.K. Rizakos, Ska Polska, National Technical University of Athens, Fraunhofer IAO, VTT Technical Research Centre of Finland and, Technion-Israel Institute of Technology.
Funding Information:
There is a huge need to renovate European buildings [1]. This is supported by the number of past and on-going research and development (R&D) activities in Europe [2]. The renovation will support both improving people’s living conditions and achieving wider climate targets; currently, buildings account for 40% of total primary energy consumption and for 36% of greenhouse gas emissions [3]. Furthermore, an ageing population, migration, and changing lifestyles and family structures all place new demands on housing [4]. New construction in Europe represents about 1% of the building stock annually [3], while the renovation rate has been quite low at 1.2% per year [5], resulting in initiatives to boost it [6]. Even if many barriers are non-technical [7] and recent projects have developed new solutions [2], reliable and easy-to-install technologies are still needed.
Publisher Copyright:
© 2019 by the author.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - There is huge market potential for energy refurbishment solutions in European buildings. This paper analyzes the challenges related to using a multifunctional energy efficient façade system, the “Meefs” system, in retrofitting multi-family apartment buildings. Similar challenges often occur also in other comparable façade renovation solutions. The focus is on hygrothermal performance even as other aspects are also discussed. After introducing the hygrothermal performance challenges of the Meefs system, numerical case analyses are performed in three different climatic conditions. The results for 26 cases are presented. A core result is that the drying of any exterior renovation system is mandatory to guarantee safe operation in different European climate conditions. This emphasizes proper design needs in all climates. Based on the analyses, design recommendations can be given for the Meefs system. In Central and Northern European climates, the system contains challenges which may hinder implementation in practice.
AB - There is huge market potential for energy refurbishment solutions in European buildings. This paper analyzes the challenges related to using a multifunctional energy efficient façade system, the “Meefs” system, in retrofitting multi-family apartment buildings. Similar challenges often occur also in other comparable façade renovation solutions. The focus is on hygrothermal performance even as other aspects are also discussed. After introducing the hygrothermal performance challenges of the Meefs system, numerical case analyses are performed in three different climatic conditions. The results for 26 cases are presented. A core result is that the drying of any exterior renovation system is mandatory to guarantee safe operation in different European climate conditions. This emphasizes proper design needs in all climates. Based on the analyses, design recommendations can be given for the Meefs system. In Central and Northern European climates, the system contains challenges which may hinder implementation in practice.
KW - façade renovation
KW - residential buildings
KW - hygrothermal performance
KW - performance aspects
KW - Façade renovation
KW - Residential buildings
KW - Hygrothermal performance
KW - Performance aspects
UR - http://www.scopus.com/inward/record.url?scp=85071188017&partnerID=8YFLogxK
U2 - 10.3390/buildings9080184
DO - 10.3390/buildings9080184
M3 - Article
VL - 9
JO - Buildings
JF - Buildings
SN - 2075-5309
IS - 8
M1 - 184
ER -