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A modified cup-method for lightweight and highly permeable materials

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Author

Summary, in English

With an increasing interest for dynamic hygrothermal calculation models for short time periods, there is a need for uncomplicated and reliable methods to determine the moisture properties for materials used in the indoor environment. The traditional cup-method is commonly used for building materials to determine the water vapor permeability. When used on lightweight and highly permeable materials, the unidentified inner surface resistance of the cup-method will be problematic and fastening the sample to the cup can be troublesome. To address these problems, we have developed a modified cup-method based on standard laboratory crimp cap vials to determine the water vapor resistance for lightweight and highly permeable materials, such as textiles and paper. This modified cup-method together with a validation is presented in the paper.

Publishing year

2003

Language

English

Pages

177-182

Publication/Series

Research in Building Physics

Document type

Conference paper

Publisher

Balkema

Topic

  • Building Technologies
  • Materials Engineering

Conference name

2nd International Conference on Building Physics, 2003

Conference date

2003-09-14 - 2003-09-18

Conference place

Leuven, Belgium

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-9058095657
  • ISBN: 9058095657