Mold is a common problem in buildings that affects human health and can also damage or destroy building materials. Because mold requires water to grow, controlling mold requires a thorough understanding of how water enters and travels (or doesn’t) through buildings. Because mold also requires a food source, controlling it also requires an understanding of which building materials are susceptible to mold and how best to use and protect them.
The following documents address these key issues of water movement and mold-susceptibility. They also discuss important topics such as health effects, mold testing, and what to do when mold is found.
Adding outdoor air in hot humid climates causes moisture problems right? Sometimes. It depends on the condition of the house before you start to add outdoor air. Contrary to popular belief, most houses in hot, humid climates are over ventilated due to duct leakage and induced air change from internal air pressure effects due to unbalanced air flow and door closure.
Air flow in buildings is one of the major factors that governs the interaction of the building structure with the mechanical system, climate and occupants. If the air flow at any point within a building or building assembly can be determined or predicted, the temperature and moisture (hygrothermal or pyschometric) conditions can also be determined or predicted. If the hygrothermal conditions of the building or building assembly are known, the performance of materials can also be determined or predicted
We learn our lessons from disaster. Hurricane Andrew taught us about wind. Hurricanes Charley, Frances and Jeanne taught us about rain. The Red River of the North Basin taught us about floods. Hurricane Katrina had it all: wind, rain and flood. That we will rebuild, and rebuild in the same place, is not in doubt. This is what we do – for better or worse. If we are to rebuild and if we are to rebuild in the same place how should we rebuild?
