External thermal insulation composite systems in solid timber construction

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External thermal insulation composite systems (ETICS) combined with cross laminated timber (CLT) reveal useful exterior wall constructions, which meet the requirements for sustainability, serviceability and durability of modern buildings efficiently. Associated thermal insulation and moisture protection requirements are essential design criteria to be considered in the planning process. In light of the European legal regulation concerning ETICS, our paper deals with the hygrothermal behavior of an existing exterior wall construction in solid timber construction with ETICS, experimentally determined by means of long-term monitoring situated in the residential project "-massive-living" (Graz, AT). Based on obtained data of temperature and rel. humidity for a period of two years, we not only evaluated building physics aspects concerning the suitability of the structure, but also derived the time depending course of the essential parameter "moisture content" for selected layers of the CLT element. In addition, corresponding data is compared with results gained from a hygrothermal simulation. Further investigation then was carried out determining the hygrical impact on the timber component by changing insulation material. Therefore, the hygrothermal behavior of commonly applied ETICS in combination with CLT as base material was simulated. Finally, resulting bandwidths of moisture content in dependence of the applied ETICS are shown and discussed.
Original languageEnglish
Title of host publicationWCTE 2016 - World Conference on Timber Engineering
EditorsJohann Eberhardsteiner, Wolfgang Winter, A. Fadai, M. Pöll
PublisherTechnische Universität Wien
Number of pages10
ISBN (Electronic)978-3-903039-00-1
Publication statusPublished - 22 Aug 2016
EventWorld Conference on Timber Engineering: WCTE 2016 - Universität Wien, Wien, Austria
Duration: 22 Aug 201625 Aug 2016


ConferenceWorld Conference on Timber Engineering
Abbreviated titleWCTE 2016
Internet address


  • External thermal insulation composite system
  • long-term monitoring
  • hygrothermal simulation
  • Cross Laminated Timber (CLT)
  • Temperature
  • relative humidity
  • wood moisture content

Fields of Expertise

  • Advanced Materials Science
  • Sustainable Systems

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)
  • Experimental


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