Moisture Performance of ETICS with Additional Insulation in Slovak Conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F25%3A43927648" target="_blank" >RIV/62156489:43410/25:43927648 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/978-3-032-09054-6_49" target="_blank" >https://doi.org/10.1007/978-3-032-09054-6_49</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-032-09054-6_49" target="_blank" >10.1007/978-3-032-09054-6_49</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Moisture Performance of ETICS with Additional Insulation in Slovak Conditions

Popis výsledku v původním jazyce

The energy consumption requirements for buildings have been increased several times over the last few decades. The original external thermal insulation composite system (ETICS), installed around the year 2000, is no longer suitable nowadays and the buildings need to be renovated. One way of renovating a façade is to add an additional layer of external thermal insulation on the top of the original insulation and to create a new ETICS system. However, the question remains as to how such a multi-component system will change the moisture per formance of the external wall, and how to avoid moisture condensation problems. This numerical case study examines the potential moisture regime of the selected external walls in Slovak conditions, identifying how this regime changes after the addition of insulation. The original ETICS systems considered in this study were typical of Slovak construction in the 1980s, consisting of a cement-based plaster, adhesive layer, insulation (usually expanded polystyrene or mineral wool), and f inishing layer. The same representative ETICS configuration was used across all simulated cases, based on commonly applied materials at the time. The refer ence time period for the &apos;original&apos; ETICS condition is approximately 1985-2000. The numerically simulated moisture distribution in the external envelope mate rial components is used for the estimation and prediction of moisture content in of such additional insulation. The dynamic moisture behavior performed by the numerical simulation is compared with the simplified Glasser model for the design and evaluation of the moisture performance of external envelope compositions, which is still primarily used in the engineering practice. This comparison shows the possible consequences of the assumptions of the incorrect simplified heat and moisture models, especially under future climate conditions.

Název v anglickém jazyce

Moisture Performance of ETICS with Additional Insulation in Slovak Conditions

Popis výsledku anglicky

The energy consumption requirements for buildings have been increased several times over the last few decades. The original external thermal insulation composite system (ETICS), installed around the year 2000, is no longer suitable nowadays and the buildings need to be renovated. One way of renovating a façade is to add an additional layer of external thermal insulation on the top of the original insulation and to create a new ETICS system. However, the question remains as to how such a multi-component system will change the moisture per formance of the external wall, and how to avoid moisture condensation problems. This numerical case study examines the potential moisture regime of the selected external walls in Slovak conditions, identifying how this regime changes after the addition of insulation. The original ETICS systems considered in this study were typical of Slovak construction in the 1980s, consisting of a cement-based plaster, adhesive layer, insulation (usually expanded polystyrene or mineral wool), and f inishing layer. The same representative ETICS configuration was used across all simulated cases, based on commonly applied materials at the time. The refer ence time period for the &apos;original&apos; ETICS condition is approximately 1985-2000. The numerically simulated moisture distribution in the external envelope mate rial components is used for the estimation and prediction of moisture content in of such additional insulation. The dynamic moisture behavior performed by the numerical simulation is compared with the simplified Glasser model for the design and evaluation of the moisture performance of external envelope compositions, which is still primarily used in the engineering practice. This comparison shows the possible consequences of the assumptions of the incorrect simplified heat and moisture models, especially under future climate conditions.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA24-12226S" target="_blank" >GA24-12226S: Vývoj pokročilých modelů a metod měření přenosu tepla a vlhkosti ve stavebních konstrukcích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Moisture in Buildings: Proceedings of ICMB25

ISBN

978-3-032-09053-9

ISSN

2366-2557

e-ISSN

2366-2565

Počet stran výsledku

13

Strana od-do

618-630

Název nakladatele

Springer Switzerland

Místo vydání

Cham

Místo konání akce

Guimarães

Datum konání akce

23. 10. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001660269700049