Durability assessment of external thermal insulation composite systems in urban and maritime environments

Detalhes bibliográficos
Autor(a) principal: Parracha, J. L.
Data de Publicação: 2022
Outros Autores: Borsoi, G., Veiga, R., Flores-Colen, I., Nunes, L., Viegas, C. A., Moreira, L. M., Dionísio, A., Gomes, M. Glória, Faria, P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/146141
Resumo: Funding Information: Triple resistance to water, graffiti and biocolonization of external thermal insulation systems), the Associate Laboratory Institute for Health and Bioeconomy – i4HB ( LA/P/0140/2020 ). The authors also acknowledge CIN, Saint-Gobain and Secil for the material supply and the Portuguese Institute for Sea and Atmosphere (IPMA) for the meteorological data. Publisher Copyright: © 2022 Elsevier B.V.
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spelling Durability assessment of external thermal insulation composite systems in urban and maritime environmentsBiocolonizationDurabilityETICSNatural agingSurface propertiesWater resistanceEnvironmental EngineeringEnvironmental ChemistryWaste Management and DisposalPollutionFunding Information: Triple resistance to water, graffiti and biocolonization of external thermal insulation systems), the Associate Laboratory Institute for Health and Bioeconomy – i4HB ( LA/P/0140/2020 ). The authors also acknowledge CIN, Saint-Gobain and Secil for the material supply and the Portuguese Institute for Sea and Atmosphere (IPMA) for the meteorological data. Publisher Copyright: © 2022 Elsevier B.V.External Thermal Insulation Composite Systems (ETICS) are multilayer solutions which provide an enhanced thermal performance to the building envelope. However, significant anomalies can be detected on ETICS facades, in some cases shortly after the application of these systems. This study intends to evaluate and compare the durability of six commercially available ETICS after two years of outdoor exposure at both urban and maritime conditions in Portugal. The systems were characterized by means of non-destructive testing (i.e., visual and microscopic assessment, water transport properties, thermal conductivity, surface roughness), thus allowing to evaluate the performance loss throughout natural aging. The bio-susceptibility and aesthetic properties (color and gloss) were also investigated. Results showed that the performance and durability of the complete system is significantly affected by the rendering system formulation. The lime-based specimens obtained the highest rate of mold development after one year of aging in a maritime environment, becoming considerably darker and with lower surface gloss. Fungal analysis of this darkish stained area indicated the presence of mold species of the genera Alternaria, Didymella, Cladosporium and Epicoccum, and yeasts of the genera Vishniacozyma and Cystobasidium. An increase of both capillary water absorption and water vapor permeability was also registered for the aged lime-based specimens. Acrylic-based systems obtained lower capillary water absorption after aging and greater dirt deposition on their surfaces, especially in urban conditions. These systems had also higher color variation and surface gloss decrease and slightly higher mold growth, when compared with those aged in a maritime environment. Finally, no mold growth was detected on the silicate-based specimens after two years of aging. However, these specimens obtained higher capillary water absorption and lower vapor permeability after aging, possibly leading to moisture accumulation within the system. Results contribute towards the development of ETICS with enhanced performance and durability.CERIS - Polo NOVADEC - Departamento de Engenharia CivilRUNParracha, J. L.Borsoi, G.Veiga, R.Flores-Colen, I.Nunes, L.Viegas, C. A.Moreira, L. M.Dionísio, A.Gomes, M. GlóriaFaria, P.2022-12-12T22:13:16Z2022-11-252022-11-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article16application/pdfhttp://hdl.handle.net/10362/146141eng0048-9697PURE: 46198315https://doi.org/10.1016/j.scitotenv.2022.157828info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:27:10Zoai:run.unl.pt:10362/146141Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:52:30.256201Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Durability assessment of external thermal insulation composite systems in urban and maritime environments
title Durability assessment of external thermal insulation composite systems in urban and maritime environments
spellingShingle Durability assessment of external thermal insulation composite systems in urban and maritime environments
Parracha, J. L.
Biocolonization
Durability
ETICS
Natural aging
Surface properties
Water resistance
Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
title_short Durability assessment of external thermal insulation composite systems in urban and maritime environments
title_full Durability assessment of external thermal insulation composite systems in urban and maritime environments
title_fullStr Durability assessment of external thermal insulation composite systems in urban and maritime environments
title_full_unstemmed Durability assessment of external thermal insulation composite systems in urban and maritime environments
title_sort Durability assessment of external thermal insulation composite systems in urban and maritime environments
author Parracha, J. L.
author_facet Parracha, J. L.
Borsoi, G.
Veiga, R.
Flores-Colen, I.
Nunes, L.
Viegas, C. A.
Moreira, L. M.
Dionísio, A.
Gomes, M. Glória
Faria, P.
author_role author
author2 Borsoi, G.
Veiga, R.
Flores-Colen, I.
Nunes, L.
Viegas, C. A.
Moreira, L. M.
Dionísio, A.
Gomes, M. Glória
Faria, P.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv CERIS - Polo NOVA
DEC - Departamento de Engenharia Civil
RUN
dc.contributor.author.fl_str_mv Parracha, J. L.
Borsoi, G.
Veiga, R.
Flores-Colen, I.
Nunes, L.
Viegas, C. A.
Moreira, L. M.
Dionísio, A.
Gomes, M. Glória
Faria, P.
dc.subject.por.fl_str_mv Biocolonization
Durability
ETICS
Natural aging
Surface properties
Water resistance
Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
topic Biocolonization
Durability
ETICS
Natural aging
Surface properties
Water resistance
Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
description Funding Information: Triple resistance to water, graffiti and biocolonization of external thermal insulation systems), the Associate Laboratory Institute for Health and Bioeconomy – i4HB ( LA/P/0140/2020 ). The authors also acknowledge CIN, Saint-Gobain and Secil for the material supply and the Portuguese Institute for Sea and Atmosphere (IPMA) for the meteorological data. Publisher Copyright: © 2022 Elsevier B.V.
publishDate 2022
dc.date.none.fl_str_mv 2022-12-12T22:13:16Z
2022-11-25
2022-11-25T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/146141
url http://hdl.handle.net/10362/146141
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0048-9697
PURE: 46198315
https://doi.org/10.1016/j.scitotenv.2022.157828
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 16
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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