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Author(s):	Rosenau, B.
Title:
Abstract:	Im vorliegenden Artikel wird gezeigt, dass es möglich ist, im Versuch erhaltene hygrothermische Messwerte aus Bewitterungsversuchen an Außenwänden im Holztafel-/Holzrahmenbau mit direkt beschichteten Beplankungen mit dem Programm WUFI 4.0 nachzurechnen. Anschließend erfolgte die hygrothermische Berechnung der Wandkonstruktionen mit dem in WUFI 4.0 enthaltenen Klimadatensatz von Holzkirchen. Die erhaltenen Zeitkurven der relativen Luftfeuchte und Lufttemperatur dienten als Eingabewerte in WUFI-BIO 2.0 zur Berechnung des Risikos eines Schimmelpilzwachstums in der Konstruktion. Das Risiko eines Schimmelpilzwachstums in der Konstruktion konnte mit den Berechnungen nicht generell ausgeschlossen werden. Es wird empfohlen, innere Dampfbremsfolien mit sd  25 m zu verwenden. Weiterführende Untersuchungen sollten an realen Bauobjekten erfolgen. To observe the hygrothermal behavior of exterior walls in timber frame construction with direct rendered sheathings. The presented paper shows that it is possible to calculate with the program WUFI 4.0 the hygrothermal measurement data of weathering tests in the climate chamber on exterior walls in timber frame construction with direct rendered sheathings. Afterwards, hygrothermal calculations of walls under the use of climate data from Holzkirchen/Germany were conducted. The obtained relative humidity time diagrams and temperature time diagrams were used as input values in WUFI-BIO 2.0 to calculate the risk of mould growth in the construction. In general, the risk of mould growth in the construction could not be excluded with the calculations. Therefore, the use of interior vapor barrier sheets with sd  25 m is recommended. Further research should take place on real buildings.
Source:	Bauphysik 31 (2009), No. 5
Page/s:	291-295
Language of Publication:	German

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