Moisture Control
In Building Envelopes

September 25-27, 2003
at Clemson University's Conference Center and Inn
and SCIES' Energy Systems Laboratory

 


Fundamentals of Moisture Control in Buildings
The Conference Center and Inn at Clemson University
Lecture: September 25, 8:30-12:00 a.m.
$85
Can't figure out why your buildings have moisture or mold problems? You need to bone up on the fundamentals of heat, air and moisture transport in buildings.

  • Moisture Transport Physics
  • Design Criteria for Indoor Environments
  • Balancing Building Envelope Cycles: Wetting, Storage, Drying
  • Developing Successful Building Envelope Designs & Predict mold Growth
  • Thermal performance
  • Cool Surfaces (Roofs + Walls)

Working With WUFI-ORNL
Energy Systems Laboratory-Dillard Building
Software Training September 25-27
$495
Limited to 30 students
Bring your laptop computer
Trial Software Provided


Move beyond fundamental. Equip yourself to perform detailed building envelope performance evaluations. Building professionals will learn how to use advanced computer modeling tools to evaluate transient moisture loads in exterior building components. The evaluations performed can be used by professionals to evaluate existing building systems, design new systems or evaluate specific building materials. This method can also be used to predict microbial growth.

WUFI-ORNL software allows the realistic simulation of the transient hygrothermal behavior of multi-layer building walls exposed to natural weather. The WUFI-ORNL model can handle contributions from rain, solar radiation and other crucial weather events on an hourly basis. Both vapor and liquid transport are included along with the sorptive capacity of building construction materials. The WUFI-ORNL software offers a user-friendly interface for data input. The definition of the component geometry is performed by a graphical interface with automatic grid generation. The temporal behavior of the computed quantities (temperatures, relative humidities and water contents) can be analyzed with the help of preconfigured or user defined diagrams. The software comes complete with weather data for 53 North American cities.

WUFI-ORNL is based on the newest findings regarding vapor diffusion and liquid transport in building materials.

WUFI-ORNL only requires standard material properties and easy-to-determine moisture storage and liquid transport functions.

WUFI-ORNL can use measured weather data - including driving rain and solar radiation - as boundary conditions, thus allowing realistic investigations on the behavior of the component under exposure to natural weather.

WUFI-ORNL can be used for assessing

  • the drying time of masonry (stucco/brick/concrete) with trapped construction moisture
  • the danger of interstitial condensation
  • the influence of driving rain on exterior building components
  • the effect of repair and retrofit measures
  • the hygrothermal performance of roof and wall assemblies under unanticipated use or in different climate zones
WUFI-ORNL is a tool for developing and optimizing building materials and components. For example, it was used as a development tool for the smart vapor retarder. WUFI-ORNL is directed at architects, consultants, designers, engineering offices manufacturers of building products, and experts in the field of hygrothermics. WUFI-ORNL may be used as a teaching aid or advertising tool because of the instructive visualization of its calculation results. WUFI-ORNL runs on PCs under Windows 98, 2000 and XP. Includes comprehensive on-line help and documentation. For a free educational copy of the software, visit the ORNL website www.ornl.gov/btc/moisture.

Featured Speakers

Dr. Achilles Karagiozis, Senior Research Engineer,Building Envelopes and Materials Research Programs at Oak Ridge National Laboratory

Dr. Karagiozix is a national and international expert in the area of thermal and moisture performance of building envelopes and materials. He is the father of “MOISTURE ENGINEERING”, and has been involved in this area for more that 13 years. He is active in the building industry, participating in ASHRAE, ASTM, USA National representative for CIB W40 and the Building Environment and Thermal Envelope Council. Area of expertise include energy, moisture, ventilation and durability performance.

Dr. Andreas Holm, Fraunhofer Institute for Building Physics.

Dr. Holm is the Group Manager within the hygrothermal division of the Fraunhofer-Institut Bauphysik (IBP). Dr. Holm has written or co-authored over fifty publications. During the last years he was mainly involved in the development of the computer code WUFI and WUFI2D and its application for sensitivity and stochastic analysis. He also developed new methods for measuring material properties.

Mr. Andre’ Desjarlais, Program Leader for the Building Envelope and Materials Research Programs at the Oak Ridge National Laboratory.

Mr. Desjarlais has been involved in building envelope and materials research for 30 years, first as a consultant and, for the last twelve years, at ORNL. He is active in the building industry, participating in ASHRAE, ASTM, Cool Room Rating Council, SPRI, Roof Consultants Institute, Roof Industry Committee on Weather Issues, Federal Roofing Committee, National Fenestration Rating Council, and the Building Environment and Thermal Envelope Council. Areas of expertise include building envelope and material energy efficiency, moisture control, and durability.

For further information regarding this workshop, please contact scies-l@clemson.edu or call 864-656-2267.

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