Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand

In the 1990s, phenolic panels made from Bakelite-finished wood were given a 1 mm-thick finishing layer of natural wood, which was protected by a film of waterproof paper. The edges were protected with the same type of phenolic resins. In practice, a gradual deterioration of the protective layer occu...

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Autores: Echarri Iribarren, Víctor, Galiano Garrigós, Antonio, Espinosa Fernández, Almudena
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:69768
Acceso en línea:http://zaguan.unizar.es/record/69768
Access Level:acceso abierto
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spelling Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demandEcharri Iribarren, VíctorGaliano Garrigós, AntonioEspinosa Fernández, AlmudenaIn the 1990s, phenolic panels made from Bakelite-finished wood were given a 1 mm-thick finishing layer of natural wood, which was protected by a film of waterproof paper. The edges were protected with the same type of phenolic resins. In practice, a gradual deterioration of the protective layer occurred due to the combined action of UV rays and rainwater. When the wood lost its protective layer, it expanded, deformed and acquired whitish stains due to the action of microorganisms. The edges suffered similar deterioration processes. We present a sample of the damage at a museum. The deterioration of the panels was worsened by their incorrect positioning during construction. A type of sandwich was made, with phenolic panel on the exterior, then rock wool insulation and MDF wood panels. This was given rigidity using wooden frames. When thermal bridges occurred due to gaps in the insulation, this gave rise to differences in surface washing which worsened the outside appearance. Once a diagnosis of the damage had been arrived at, energy rehabilitation of the covering was carried out, which involved putting in new-generation phenolic panels with a non-degradable acrylic layers and edges protected using synthetic resins. These were fitted on top of the pre-existing panels using threaded rods and a 3 cm layer of polyurethane insulation was sprayed over the whole surface. Furthermore, air has been allowed to circulate, as in a ventilated façade. This avoids any possible continuous damp problems and at the same time, in summer, avoids heat building up due to the solar radiation. The building was monitored over a full, year-round cycle which allowed us to learn about its energy performance using Design Builder software, which had been calibrated using temperature adjustments and real energy consumption data. We present the results, which show the reduction in the building energy demand.2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/69768reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:697682026-05-29T13:59:51Z
dc.title.none.fl_str_mv Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand
title Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand
spellingShingle Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand
Echarri Iribarren, Víctor
title_short Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand
title_full Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand
title_fullStr Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand
title_full_unstemmed Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand
title_sort Energy rehabilitation of ventilated faÇades using phenolic panelling at the university of Alicante museum: Thermal characterisation and energy demand
dc.creator.none.fl_str_mv Echarri Iribarren, Víctor
Galiano Garrigós, Antonio
Espinosa Fernández, Almudena
author Echarri Iribarren, Víctor
author_facet Echarri Iribarren, Víctor
Galiano Garrigós, Antonio
Espinosa Fernández, Almudena
author_role author
author2 Galiano Garrigós, Antonio
Espinosa Fernández, Almudena
author2_role author
author
description In the 1990s, phenolic panels made from Bakelite-finished wood were given a 1 mm-thick finishing layer of natural wood, which was protected by a film of waterproof paper. The edges were protected with the same type of phenolic resins. In practice, a gradual deterioration of the protective layer occurred due to the combined action of UV rays and rainwater. When the wood lost its protective layer, it expanded, deformed and acquired whitish stains due to the action of microorganisms. The edges suffered similar deterioration processes. We present a sample of the damage at a museum. The deterioration of the panels was worsened by their incorrect positioning during construction. A type of sandwich was made, with phenolic panel on the exterior, then rock wool insulation and MDF wood panels. This was given rigidity using wooden frames. When thermal bridges occurred due to gaps in the insulation, this gave rise to differences in surface washing which worsened the outside appearance. Once a diagnosis of the damage had been arrived at, energy rehabilitation of the covering was carried out, which involved putting in new-generation phenolic panels with a non-degradable acrylic layers and edges protected using synthetic resins. These were fitted on top of the pre-existing panels using threaded rods and a 3 cm layer of polyurethane insulation was sprayed over the whole surface. Furthermore, air has been allowed to circulate, as in a ventilated façade. This avoids any possible continuous damp problems and at the same time, in summer, avoids heat building up due to the solar radiation. The building was monitored over a full, year-round cycle which allowed us to learn about its energy performance using Design Builder software, which had been calibrated using temperature adjustments and real energy consumption data. We present the results, which show the reduction in the building energy demand.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/69768
url http://zaguan.unizar.es/record/69768
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
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