Moisture permeability data presented as a mathematical relationship

Galbraith, G H; McLean, R C and Guo, J S (1998) Moisture permeability data presented as a mathematical relationship. Building Research & Information, 26(3), pp. 157-168. ISSN 0961-3218

Abstract

A detailed statistical analysis is presented of the correlation between moisture permeability and relative humidity based on experimental data obtained by the authors and a variety of other investigators using standard gravimetric measurement methods. In total, five proposed mathematical formulations are examined for five different types of material commonly used in building construction. The suitability of each formulation is investigated using non-linear regression techniques including an analysis of collinearity and relative standard error. This statistical approach allows the best functional form of equation for describing the variability of moisture permeability with relative humidity to be identified for building materials. A database covering a total of ten materials is then presented on the basis of this equation.

Item Type: Article
Uncontrolled Keywords: humidity; moisture; permeability; statistical validation; water vapour
Index terms: database, building construction, variability, suitability, permeability, relative humidity, measurement method, statistical analysis, building material, validation, humidity
Subjects: statistical analysis, air quality, professional development, climate science, material properties and characteristics, design criteria, data science, financial and cost management, building construction, data management, building materials
Topics: Information Management, Cost Management, Digital Applications, Sustainability, Design Practice, Construction Materials, Research Practice, Construction Technology
Descriptive scope: 3 PCA

N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here