Moisture Buffer Value of Building MaterialsRode, C.; Peuhkuri, R.; Hansen, K.K.; Time, B.; Svennberg, Kaisa; Arfvidsson, Jesper; Ojanen, T. Published: 2006-01-01 Link to publication Citation for published version (APA): Rode, C., Peuhkuri, R., Hansen, K. K., Time, B., Svennberg, K., Arfvidsson, J., & Ojanen, T. (2006). Moisture Buffer Value of Building Materials. Paper presented at ASTM Symposium on Heat-Air-Moisture Transport: Measurements on Building Materials, Toronto, Canada.General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Moisture Buffer Value of Materials in Buildings

Moisture Buffer Value of Building MaterialsRode, C.; Peuhkuri, R.; Hansen, K.K.; Time, B.; Svennberg, Kaisa; Arfvidsson, Jesper; Ojanen, T. Published: 2006-01-01 Link to publication Citation for published version (APA): Rode, C., Peuhkuri, R., Hansen, K. K., Time, B., Svennberg, K., Arfvidsson, J., & Ojanen, T. (2006). Moisture Buffer Value of Building Materials. Paper presented at ASTM Symposium on Heat-Air-Moisture Transport: Measurements on Building Materials, Toronto, Canada.General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Moisture Buffer Value of Materials in Buildings

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An increased interest in moisture buffering in the indoor environment and the development of more refined hygrothermal calculation tools call for a better understanding of the phenomenon. There are many materials indoors with potential to act as moisture buffers, ranging from traditional finishing materials as gypsum plaster to textiles. The objective of this study is to show that the interest in moisture buffering is not a new issue. There have been significant laboratory studies made in the past. This study presents a review of such previous studies (1960-2000) on indoor surface materials from Germany and Sweden, not published in English before.

An increasing interest in the moisture buffering of indoor surface materials and new tools for calculation of energy demands and indoor climate calls for relevant material properties of all materials exposed to the indoor air. Textile fabric represents a large portion of the surface materials present in dwellings and offices and is therefore of special interest. This paper presents the sorption isotherms for nine fabrics, two foams and one batting, all of material compositions that are commonly found in the indoor environment. The data are fitted to the Hailwood-Horrobin sorption isotherm equation and good agreement is found for all materials. The difference in moisture capacity and hysteresis between different materials is discussed.