Moisture Control in Low-Slope Roofing: A New Design Requirement

A.O. Desjarlais and J.E. Christian, Oak Ridge National Laboratory
N. A. Byars, University of North Carolina Charlotte

Contents:

Abstract

Introduction

Moisture Control Strategies Presently Employed

Proposed Moisture Control Strategy

Developing the Algorithms

Using the Algorithms

An Example

Comparison with Existing Methods

Conclusions/Future Work

References


Calculator

References

  1. Desjarlais, A.O. (1995). Self-Drying Roofs: What! No Dripping! Proceedings of the ASHRAE/DOE/BETEC Thermal Performance of the Exterior Envelopes of Buildings VI.
  2. NRCA. 1996. The NRCA Roofing and Waterproofing Manual, Fourth Edition. Rosemount, IL: National Roofing Contractors Association.
  3. Desjarlais, A.O. and N. Byars. 1997. Moisture Design to Improve the Durability of Low-Slope Roofing Systems. Proceedings of the Sustainable Roofing Workshop (ORNL CONF-9610200). Oak Ridge, TN: Oak Ridge National Laboratory.
  4. ASHRAE. 1993. ASHRAE Handbook of Fundamentals. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers.
  5. Tobiasson, W. and M. Harrington. 1986. Vapor drive maps of the U.S. Proceedings of the ASHRAE/DOE/BTECC Thermal Performance of the Exterior Envelopes of Buildings III, pp. 663-672.
  6. Tobiasson, W. 1988. Vapor Retarders for Membrane Roofing Systems. Proceedings of the 9th Conference on Roofing Technology. Rosemount, IL: National Roofing Contractors Association.
  7. Kyle, D.M., and Desjarlais, A.O. 1994. Assessment of Technologies for Constructing Self-Drying Low-Slope Roofs, Oak Ridge National Laboratory Report ORNL/CON-380, Oak Ridge TN.
  8. Black, W.Z. and Hartley, J.G. 1991 Thermodynamics, Harper Collins Publishers.
  9. Desjarlais, A.O. and Byars, N.A. 1997. A New Look at Moisture Control in Low-Slope Roofing. Proceedings of the 4th International Symposium on Roofing Technology. Rosemount, IL: National Roofing Contractors Association, to be published.

Previous Section - Conclusions/Future Work

Building Envelope Research
Oak Ridge National Laboratory

For more information, contact the program manager for Building Envelope Research:

André O. Desjarlais
Oak Ridge National Laboratory
P. O. Box 2008, MS 6070
Oak Ridge, TN 37831-6070

E-mail Andre Desjarlais


Revised: May 15, 2001 by Diane McKnight