Hygrothermal simulation assessment of internal insulation systems for retrofitting a historic Danish Building

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Resumé

The built environment is accountable for 1/3 of the European energy consumption. Thermal insulation is a key factor affecting the energy performance of buildings. Historic buildings typically were made with solid external walls of brick masonry or natural stone, rarely insulated afterwards. Often the buildings have worth-preserving façades making internal insulation the only feasible technique, however significantly modifying the hygrothermal performance of the façade. The research objective of this paper is to simulate the hygrothermal performance of solid masonry walls in an old Danish hospital that will be internally insulated following the Danish requirement (U-value) for external walls (change of use of buildings) and transformed into dwellings, involving different insulation systems. Heat loss and masonry moisture content level after adding internal insulation and the possible effects of hydrophobization on the moisture content is simulated. Simulations show an increased moisture content in the original wall when adding internal insulation implying an increased risk for moisture-related damage (mould growth, frost damage and interstitial condensation). The results also show that hydrophobic impregnation of the internally insulated facades may be vital in avoiding moisture problems and securing a moisture-safe energy renovation of buildings like the one studied.
OriginalsprogEngelsk
Titel4th Central European Symposium on Building Physics (CESBP 2019) : Prague, Czech Republic, September 2-5, 2019
RedaktørerR. Černý, J. Kočí , V. Kočí
Antal sider6
ForlagEDP Sciences
Publikationsdato6 sep. 2019
Sider1-6
Artikelnummer02049
DOI
StatusUdgivet - 6 sep. 2019
Begivenhed4th Central European Symposium on Building Physics 2019 - Czech Technical University in Prague, Prague, Tjekkiet
Varighed: 2 sep. 20195 sep. 2019
https://www.cesbp2019.org/

Konference

Konference4th Central European Symposium on Building Physics 2019
LokationCzech Technical University in Prague
LandTjekkiet
ByPrague
Periode02/09/201905/09/2019
Internetadresse
NavnMATEC Web of Conferences
Vol/bind282
ISSN2261-236X

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Retrofitting
Insulation
Moisture
Facades
Thermal insulation
Brick
Heat losses
Impregnation
Condensation
Energy utilization

Citer dette

Soulios, V., de Place Hansen, E. J., & Peuhkuri, R. H. (2019). Hygrothermal simulation assessment of internal insulation systems for retrofitting a historic Danish Building. I R. Černý, J. Kočí , & V. Kočí (red.), 4th Central European Symposium on Building Physics (CESBP 2019): Prague, Czech Republic, September 2-5, 2019 (s. 1-6). [02049] EDP Sciences. MATEC Web of Conferences, Bind. 282 https://doi.org/10.1051/matecconf/201928202049
Soulios, Vasilis ; de Place Hansen, Ernst Jan ; Peuhkuri, Ruut Hannele. / Hygrothermal simulation assessment of internal insulation systems for retrofitting a historic Danish Building. 4th Central European Symposium on Building Physics (CESBP 2019): Prague, Czech Republic, September 2-5, 2019. red. / R. Černý ; J. Kočí ; V. Kočí . EDP Sciences, 2019. s. 1-6 (MATEC Web of Conferences, Bind 282).
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title = "Hygrothermal simulation assessment of internal insulation systems for retrofitting a historic Danish Building",
abstract = "The built environment is accountable for 1/3 of the European energy consumption. Thermal insulation is a key factor affecting the energy performance of buildings. Historic buildings typically were made with solid external walls of brick masonry or natural stone, rarely insulated afterwards. Often the buildings have worth-preserving fa{\cc}ades making internal insulation the only feasible technique, however significantly modifying the hygrothermal performance of the fa{\cc}ade. The research objective of this paper is to simulate the hygrothermal performance of solid masonry walls in an old Danish hospital that will be internally insulated following the Danish requirement (U-value) for external walls (change of use of buildings) and transformed into dwellings, involving different insulation systems. Heat loss and masonry moisture content level after adding internal insulation and the possible effects of hydrophobization on the moisture content is simulated. Simulations show an increased moisture content in the original wall when adding internal insulation implying an increased risk for moisture-related damage (mould growth, frost damage and interstitial condensation). The results also show that hydrophobic impregnation of the internally insulated facades may be vital in avoiding moisture problems and securing a moisture-safe energy renovation of buildings like the one studied.",
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Soulios, V, de Place Hansen, EJ & Peuhkuri, RH 2019, Hygrothermal simulation assessment of internal insulation systems for retrofitting a historic Danish Building. i R Černý, J Kočí & V Kočí (red), 4th Central European Symposium on Building Physics (CESBP 2019): Prague, Czech Republic, September 2-5, 2019., 02049, EDP Sciences, MATEC Web of Conferences, bind 282, s. 1-6, 4th Central European Symposium on Building Physics 2019, Prague, Tjekkiet, 02/09/2019. https://doi.org/10.1051/matecconf/201928202049

Hygrothermal simulation assessment of internal insulation systems for retrofitting a historic Danish Building. / Soulios, Vasilis; de Place Hansen, Ernst Jan; Peuhkuri, Ruut Hannele.

4th Central European Symposium on Building Physics (CESBP 2019): Prague, Czech Republic, September 2-5, 2019. red. / R. Černý; J. Kočí ; V. Kočí . EDP Sciences, 2019. s. 1-6 02049 (MATEC Web of Conferences, Bind 282).

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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Soulios V, de Place Hansen EJ, Peuhkuri RH. Hygrothermal simulation assessment of internal insulation systems for retrofitting a historic Danish Building. I Černý R, Kočí J, Kočí V, red., 4th Central European Symposium on Building Physics (CESBP 2019): Prague, Czech Republic, September 2-5, 2019. EDP Sciences. 2019. s. 1-6. 02049. (MATEC Web of Conferences, Bind 282). https://doi.org/10.1051/matecconf/201928202049