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Minimizing Moisture Problems in Homes Located
in Hot, Humid Climates
(September 2003, 53 p.)
Avoiding moisture-related problems—such as material
degradation and staining—is a challenge in all types
of structures, particularly those located in the hot, humid
Gulf Coast region of the U.S. As part of a multiphase research
program to better understand the underlying causes of moisture-related
problems in manufactured homes and to develop effective abatement
strategies, a series of tests were conducted on two manufactured
homes to profile airflows under varying conditions. Air movement
is a major mechanism for moisture transport. Therefore, understanding
how a home’s design, construction and operation impact
airflow is an important step in developing moisture control
strategies.
The goal of this phase of the research was to develop sets
of conditions that would result in a home having a neutral
to slightly positive pressure relative to the outside. Such
conditions create a barrier to air, and therefore moisture,
movement from outside into the living spaces and the building
cavities.
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