Preview

Author(s):	Worch, Anatol; Stelzmann, Mario
Title:
Abstract:	Bislang werden erhöhte Dämmstoffdicken einer Innendämmung mit einem erhöhten Tauwasserausfall in der Grenzschicht zwischen Dämmung und Außenwandkonstruktion in Verbindung gebracht. Der durch das Glaser-Verfahren geprägte Blick auf die Wasserdampfdiffusion ist jedoch ein sehr eingeschränkter Ausschnitt auf die tatsächlich ablaufenden Feuchtespeicher- und Feuchtetransportphänomene in einem innengedämmten Außenbauteil. Ein über drei Jahre laufendes Monitoring verschiedener Innendämmsysteme hoher Schichtdicken widerlegt jedoch dieses Vorurteil. Im Falle eines ausreichenden Schlagregenschutzes konnte keine Kondensation innerhalb der Konstruktion nachgewiesen werden. Durch das unterschiedliche Verhalten der Dämmung und des Diffusionswiderstands bezüglich der Dämmstoffdicke als auch die bislang wenig berücksichtigte Speicherung von Wasserdampf in den Baustoffen führt zu einer möglichen Reduzierung des ausfallenden Kondensats. Höhere Dämmstandards bis hin zum Passivhausniveau erscheinen auch bei Innendämmungen möglich. Humidity-related behavior of internal thermal insulation systems with high insulation thickness - Evaluation of a three-year monitoring of various internal thermal insulation systems with high thermal resistances. Increased thermal insulation thicknesses of an internal thermal insulation system have been associated with an increased amount of condensation within the boundary layer between the insulation material and the external wall construction. Influenced by the well-known Glaser method only vapor diffusion is considered. The real vapor transport and storage behavior of an internal insulated external wall is much more complex. A three-year monitoring of various internal thermal insulation systems with high layer thicknesses refutes the mentioned prejudice. The case of sufficient driving rain protection, no condensation could be detected within the construction. Due to different behavior of the insulation properties and the diffusion resistance with respect to the thickness of the insulation material as well as the considered storage capacity of water vapor in the building materials leads to a possible reduction of the precipitated condensation. Higher insulation standards seem to be possible.
Source:	Bauphysik 41 (2019), No. 4
Page/s:	193-198
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (0.87 MB).
The PDF file can be read, printed and saved.
Duplication and forwarding to third parties is not allowed.

Please enter your email address now to start the order process.
The link for the download will be sent to the email address stated after the
order process has been completed.

Your email address

I am an online subscriber

As an online subscriber of the journal "Bauphysik" you can access this article via Wiley Online Library.

I would like to order "Bauphysik"

This article has been published in the journal "Bauphysik". If you would like to learn more about the journal, you can order a free sample copy or find out more information on our website.

Prices include VAT and postage. Prices for 2017/2018.
€ Prices apply to Germany only. Subject to alterations, errors excepted.