TY - JOUR
T1 - Performance parameters of ETICS
T2 - Correlating water resistance, bio-susceptibility and surface properties
AU - Parracha, João Luís
AU - Borsoi, Giovanni
AU - Flores-Colen, Inês
AU - Veiga, Rosário
AU - Nunes, Lina
AU - Dionísio, Amélia
AU - Gomes, M. Glória
AU - Faria, Paulina
N1 - Portuguese Foundation for Science and Technology (FCT) within research project PTDC/ECI-EGC/30681/2017 (WGB_Shield – Shielding building’ façades on cities revitalization.
Triple resistance for water, graffiti and biocolonization of external thermal insulation systems). The authors also acknowledge Saint-Gobain Weber, CIN and Secil for the materials supply.
PY - 2021/2/22
Y1 - 2021/2/22
N2 - The use of External Thermal Insulation Composite Systems (ETICS) significantly increased in the last decades due to their enhanced thermal properties, low installation cost and ease of application, not only in new constructions but also for thermal retrofitting of building facades. These multilayer rendering systems are constantly exposed to weathering agents and anthropic factors which can lead to physical-mechanical and aesthetical anomalies and thus affect their durability. However, possible synergetic effects among these agents are often neglected by international technical documents on the evaluation of the effectiveness and durability of ETICS. With the aim of filling this gap, moisture transport properties (capillary water absorption, water vapor permeability, water absorption under low pressure, and drying kinetics), thermal conductivity, mould susceptibility and surface properties (color, gloss, and roughness) of twelve commercially available ETICS were assessed and discussed. Possible links between these factors were analyzed and ETICS performance parameters were defined. Results demonstrate that a deeper knowledge of the correlation among ETICS properties can effectively contribute to the evaluation of the efficiency and long-term durability of these systems.
AB - The use of External Thermal Insulation Composite Systems (ETICS) significantly increased in the last decades due to their enhanced thermal properties, low installation cost and ease of application, not only in new constructions but also for thermal retrofitting of building facades. These multilayer rendering systems are constantly exposed to weathering agents and anthropic factors which can lead to physical-mechanical and aesthetical anomalies and thus affect their durability. However, possible synergetic effects among these agents are often neglected by international technical documents on the evaluation of the effectiveness and durability of ETICS. With the aim of filling this gap, moisture transport properties (capillary water absorption, water vapor permeability, water absorption under low pressure, and drying kinetics), thermal conductivity, mould susceptibility and surface properties (color, gloss, and roughness) of twelve commercially available ETICS were assessed and discussed. Possible links between these factors were analyzed and ETICS performance parameters were defined. Results demonstrate that a deeper knowledge of the correlation among ETICS properties can effectively contribute to the evaluation of the efficiency and long-term durability of these systems.
KW - ETICS
KW - Moisture transport
KW - Mould susceptibility
KW - Performance parameters
KW - Surface properties
KW - Thermal conductivity
UR - http://www.scopus.com/inward/record.url?scp=85098082961&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2020.121956
DO - 10.1016/j.conbuildmat.2020.121956
M3 - Article
AN - SCOPUS:85098082961
SN - 0950-0618
VL - 272
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 121956
ER -