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Water vapor permeability measurements of common building materials

Burch, D.M. , W.C. Thomas, and A.H. Fanney
1992
ASHRAE Transactions, 98(2), pp. 486

Burch, D.M. , W.C. Thomas, and A.H. Fanney, (1992), "Water vapor permeability measurements of common building materials", ASHRAE Transactions, 98(2), pp. 486.
Abstract:
A cup method was used to measure water-vapor transmission in 10 common building materials. 7he mate-rials included sugar pine , sturdy-brace fiberboard, fiber-board sheathing, particleboard, exterior-grade plywood, plain gypswn board, kraft paper, wallboard siding, Wall covered gypsum board, and foam core sheathing.

For each material, a series of cup measurements was conducted, and thepenneability (or perineance) wa!r plotted as a function of the mean relative hwnidity across the specimen. Separate measurements, carried out at 24*C (75*F) and 70C (44 OF), indicated that tempeature has an insignificant effect on permeability. 7he permeability measurements were compared with other measurements reported in the literature, and the agreement was good in most cases.

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Author Information and Other Publications Notes
Burch, D. M.
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  5. Computer analysis of wall constructions in the moisture control handbook
  6. Empirical validation of a transient computer model for combined heat and moisture transfer
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  11. MOIST: A PC program for predicting heat and moisture transfer in building envelopes, Release 3.0
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Thomas, W. C.
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Fanney, A. H.
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