Moisture management is a critical aspect of the design and construction of Solar Decathlon homes. These homes are typically built to be highly energy-efficient, which can lead to a buildup of moisture within the walls. This moisture can cause structural damage and health problems, so it is important to take steps to manage it effectively.

How Much Moisture is OK in Walls?

The ideal moisture content of walls is between 0% and 15%. When moisture levels exceed 15%, the risk of mold and other moisture-related problems increases significantly. Therefore, it is important to keep moisture levels below this threshold.

Moisture Management Strategies

There are a number of strategies that can be used to manage moisture in Solar Decathlon homes. These include:

• Vapor barriers: Vapor barriers are installed on the inside of walls to prevent moisture from entering. They are made of a material that is impermeable to water vapor, such as polyethylene or aluminum foil.
• Air barriers: Air barriers are installed on the outside of walls to prevent air from entering. Air can carry moisture, so by preventing air from entering, air barriers help to reduce moisture levels in walls.
• Ventilation: Ventilation is essential for removing moisture from the air. In Solar Decathlon homes, it is important to provide adequate ventilation in all areas of the home, including the kitchen, bathrooms, and laundry room.
• Dehumidifiers: Dehumidifiers can be used to remove moisture from the air. They are particularly useful in humid climates or during the summer months when moisture levels are high.

Conclusion

Moisture management is an important aspect of the design and construction of Solar Decathlon homes. By implementing effective moisture management strategies, it is possible to create a healthy and comfortable home that will last for years to come.