SYMPOSIA PAPER Published: 01 January 1965

Moisture Equilibrium and Migration in Building Materials


Factors influencing the moisture content of a variety of building materials in equilibrium with their thermal and moisture environments are discussed. Reference is made to forces, potentials, energies, pore structure, surface area, and hysteresis. The usefulness of the suction concept in dealing with moisture at conditions close to saturation and of the relationship of the suction scale to relative humidity is discussed. The second part of the paper introduces a discussion of moisture migration under isothermal steady-state conditions, and indicates the complications inherent in the nonisothermal case. We refer to some significant work by others in fields where combined heat and moisture flow is of concern.

Author Information

Sereda, P., J.
National Research Council, Ottawa, Ont., Canada
Hutcheon, N., B.
National Research Council, Ottawa, Ont., Canada
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E05
Pages: 3–18
DOI: 10.1520/STP48424S
ISBN-EB: 978-0-8031-5970-9
ISBN-13: 978-0-8031-6617-2