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Long-term performance of thermal insulating composite systems based on water resistance and surface multifunctionality

dc.contributor.authorBorsoi, Giovanni
dc.contributor.authorParracha, João L.
dc.contributor.authorBersch, Jéssica D.
dc.contributor.authorGarcia, Ana
dc.contributor.authorDionísio, Amélia
dc.contributor.authorFaria, Paulina
dc.contributor.authorVeiga, Rosário
dc.contributor.authorFlores-Colen, Inês
dc.date.accessioned2025-10-22T08:57:49Z
dc.date.available2025-10-22T08:57:49Z
dc.date.issued2025-09-20
dc.description.abstractExternal Thermal Insulation Composite Systems (ETICSs) are increasingly applied in both new construction and energy retrofitting, where long-term durability under environmental exposure is critical to preserving thermal efficiency. Moisture ingress represents a key degradation factor, reducing insulation performance and undermining energy savings promoted by the ETICS. The effectiveness of these systems is strongly influenced by surface protection, which also reflects aesthetic and biological resistance. This study investigates the influence of three commercial protective surface coatings, characterized by hydrophobicity, photocatalytic activity, and resistance to biological growth, on ETICS finishes based on acrylic, natural hydraulic lime (NHL), and silicate binders. An artificial aging protocol was employed to evaluate coating stability and compatibility with the finishing layers. Results show that acrylic-based finishes provided superior durability and protection, while coatings on NHL and silicate substrates exhibited lower performance. Notably, a TiO2 enriched photocatalytic coating, despite improved self-cleaning potential, demonstrated the least durability. The findings highlight that optimal ETICS protection requires coatings that combine low water absorption, effective drying, and biological resistance, thereby ensuring sustained thermal and energy performance over time.eng
dc.description.sponsorshipUIDB/04028/2020; 2023.05316.BD
dc.identifier.doi10.3390/en18185008
dc.identifier.issn1996-1073
dc.identifier.urihttp://hdl.handle.net/10400.1/27842
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationShielding building' facades on cities revitalization. Triple-resistance for water, graffiti and biocolonization of external thermal insulation systems.
dc.relationCivil Engineering Research and Innovation for Sustainability
dc.relation.ispartofEnergies
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectETICS
dc.subjectMultifunctional coatings
dc.subjectDurability
dc.subjectHydrophobicity
dc.subjectSelf-cleaning
dc.subjectBiocidal
dc.titleLong-term performance of thermal insulating composite systems based on water resistance and surface multifunctionalityeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleShielding building' facades on cities revitalization. Triple-resistance for water, graffiti and biocolonization of external thermal insulation systems.
oaire.awardTitleCivil Engineering Research and Innovation for Sustainability
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FECI-EGC%2F30681%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04625%2F2020/PT
oaire.citation.issue18
oaire.citation.titleEnergies
oaire.citation.volume18
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameGarcia
person.givenNameAna
person.identifier.ciencia-idB214-EA2D-350A
person.identifier.orcid0000-0001-6289-4554
person.identifier.scopus-author-id7404608764
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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relation.isAuthorOfPublication.latestForDiscoverye49828e5-432e-46e3-a7fc-2fdbf51a237b
relation.isProjectOfPublicationae94f0b3-7508-4243-848f-95e2a53d0ec8
relation.isProjectOfPublication43071cf9-9e66-4584-a676-34f3e13e9c05
relation.isProjectOfPublication.latestForDiscoveryae94f0b3-7508-4243-848f-95e2a53d0ec8

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