Repository logo
 
Publication

Impact of Water-Repellent Products on the Moisture Transport Properties and Mould Susceptibility of External Thermal Insulation Composite Systems

2021-06Journal article Open access
Simple item page
dc.contributor.authorRoncon, Renata
dc.contributor.authorBorsoi, Giovanni
dc.contributor.authorParracha, João Luís
dc.contributor.authorFlores-Colen, Inês
dc.contributor.authorVeiga, Rosário
dc.contributor.authorNunes, Lina
dc.date.accessioned2022-02-10T15:56:50Z
dc.date.available2022-02-10T15:56:50Z
dc.date.issued2021-06
dc.description.abstractExternal Thermal Insulation Composite Systems (ETICS) are constructive solutions widely used to increase the thermal insulation in new and retrofitted buildings. However, these systems can present several anomalies due to their constant exposure to weathering agents and anthropic factors. Water is generally the major cause of degradation. Thus, the application of water-repellent products can minimize the appearance of anomalies and increase the durability of the systems. In this paper, acrylic-based and siloxane-based hydrophobic products were applied to ETICS, with the aim of assessing the compatibility, effectiveness, and durability of these products. The moisture transport properties and mould susceptibility were assessed through laboratory tests on untreated and treated specimens. The durability of the hydrophobic treatments was also evaluated through artificial aging tests (heat-cold and freeze-thaw cycles). Results show that the protection products generally decreased water absorption, slightly decreased the drying rate, and presented adequate water vapor permeability. After aging, the products still had reasonable effectiveness and, with one exception, improved the water vapor diffusion of the systems. Additionally, ETICS underwent an alteration in the finishing coat (possible modification of the porosity) due to the aging cycles. No clear linear correlation was found between the contact angle values and water absorption results, evidencing the influence of other factors related to the composition of the water-repellent products.en
dc.description.sponsorshipThis research was funded by Portuguese Foundation for Science and Technology (FCT) within research project PTDC/ECI-EGC/30681/2017 (WGB_Shield-Shielding building' facades on cities revitalization. Triple resistance for water, graffiti and biocolonization of external thermal insulation systems) and for the scholarship 2020.05180.BD (J. L. Parracha).en
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRoncon, R., Borsoi, G., Parracha, J.L., Flores-Colen, I., Veiga, R. & Nunes, L. (2021). Impact of water-repellent products on the moisture transport properties and mould susceptibility of external thermal insulation composite systems. “Coatings”, 11(5), 1-15. DOI: URI: 10.3390/coatings11050554en
dc.identifier.doi10.3390/coatings11050554pt_PT
dc.identifier.eissn2079-6412
dc.identifier.urihttp://hdl.handle.net/10400.3/6176
dc.identifier.wos000653717900001
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationFCT PTDC/ECI-EGC/30681/2017pt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2079-6412/11/5/554/review_reportpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectETICSpt_PT
dc.subjectHydrophobic Protectionen
dc.subjectWater-repellencyen
dc.subjectMoisture Transport Propertiesen
dc.subjectMould Susceptibilityen
dc.subjectDurabilityen
dc.titleImpact of Water-Repellent Products on the Moisture Transport Properties and Mould Susceptibility of External Thermal Insulation Composite Systemsen
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceSwitzerlanden
oaire.citation.endPage15pt_PT
oaire.citation.issue(5)pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleCoatingsen
oaire.citation.volume11pt_PT
person.familyNameRibeiro Nunes
person.givenNameLina Maria
person.identifierA-7169-2013
person.identifier.ciencia-id2515-2AE7-A765
person.identifier.orcid0000-0001-6849-3241
person.identifier.scopus-author-id23006201100
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication00c8e07c-ade7-454f-80be-21e23f36a0f5
relation.isAuthorOfPublication.latestForDiscovery00c8e07c-ade7-454f-80be-21e23f36a0f5

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
P1825_Nunes_2021_coatings.pdf
Size:
2.62 MB
Format:
Adobe Portable Document Format
Download

Collections

GBA - Artigos em Revistas Internacionais / Articles in International Journals