Water Vapor Transmission Measurement and Significance of Corrections

Abstract

/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1520/JAI100621Journal of ASTM International, 4, 8, pp. 1-12, 2007-09-01 Water vapor permeability measurement and significance of various corrections Mukhopadhyaya, P.; Kumaran, M. K.; Lackey, J. C.; van Reenen, D.http://irc.nrc-cnrc.gc.ca Water vapor transmission measurement and significance of corrections NRCC-45589Mukhopadhyaya, P.; Kumaran, K.; Lackey, J.; van Reenen, D.A version of this document is published in / Une version de ce document se trouve dans: Journal of ASTM International, v. 4, no. 8, Sept. 2007, pp. 1-12 The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. For more information visit http://laws.justice.gc.ca/en/showtdm/cs/C-42Les renseignements dans ce document sont protégés par la Loi sur le droit d'auteur, par les lois, les politiques et les règlements du Canada et des accords internationaux. Ces dispositions permettent d'identifier la source de l'information et, dans certains cas, d'interdire la copie de documents sans permission écrite. Pour obtenir de plus amples renseignements : http://lois.justice.gc.ca/fr/showtdm/cs/C-42

Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties

“…The water vapor transmission rate in the examined plasters was quantified using a cup method in both wet-cup and dry-cup arrangements [ 33 ]. The tests were conducted according to EN ISO 12572 [ 34 ].…”

Reaction to fire and water vapour resistance performance of treated wood specimens containing TiO2and clay nanoparticles

“…Water vapour permeability is one of the main properties, especially for coated materials, which determine the overall moisture performance of a building envelope [25,26]. Water vapour permeability is the rate of water vapour transmission through a unit area of material of a certain thickness stimulated by a pressure difference under a specified temperature and RH gradient.…”

Application of Hygrothermal Modeling Tool to Assess Moisture Response of Exterior Walls

“…This paper presents selected results from the MEWS project that demonstrate the strength and utility of a hygrothermal simulation tool (e.g., hygIRC-2D) for the moisture design of exterior wall assemblies when adequate experimental observations, required as input to the simulation tool, are available. The outputs from these hygrothermal simulations are further analyzed using a novel moisture response indicator, called the RHT index (Kumaran et al 2002b andMukhopadhyaya et al 2002), derived from relative humidity (RH) and temperature (T). At this moment, in absence of experimental benchmarking, RHT index can only be used for relative comparison of moisture responses of various wall systems.…”