High performance homes use less energy and offer better indoor air quality.
New “tighter” homes can cause poor indoor air quality and high VOC levels.
Most green building and energy performance standards include dehumidification and ventilation.
High Performance Homes
New building practices and the drive for energy upgrades in existing homes have resulted in tighter homes that often have comfort issues and poor indoor air quality. Airtight and well-insulated building construction restricts air infiltration from the outside, which allows pollutants and moisture levels to accumulate inside. Most new construction building standard programs and existing home performance assessments incorporate the indoor air quality elements of whole house dehumidification and ventilation.
According to the US Department of Energy, controlling moisture can make your home more energy-efficient, less costly to heat and cool, and more comfortable. Properly controlling moisture in your home will improve the effectiveness of your air sealing and insulation efforts. The best strategies for controlling moisture in your home depend on your climate and how your home is constructed. Proper ventilation should also be part of a moisture control strategy.
Energy Efficient Homes
Energy efficient homes — both new and existing — require mechanical ventilation to maintain indoor air quality. The new ENERGY STAR for Homes Version 3 Guidelines now require all new homes to include a mechanical ventilation system complying with the ASHRAE 62.2 Standard.
Fresh air supply ventilation systems, such as an Ultra-Aire Whole House Ventilating Dehumidifier, allow improved control and treatment of the air that enters the house. By slightly pressurizing the house, these systems minimize outdoor pollutants in the living space and reduce the potential for backdrafting of combustion gases from fireplaces and appliances. Ultra-Aire Whole House Ventilating Dehumidifiers also allow outdoor air to be filtered to remove pollen and dehumidified (if needed), before it is introduced into the home.
Ultra-Aire Whole House Ventilating Dehumidifiers are ENERGY STAR® Rated and have the ability to introduce the recommended amount of fresh, filtered air while maintaining proper humidity levels throughout the entire home.
To learn more about whole home performance and how ventilation and moisture control play a vital role visit RESNET.
According to LEED for Homes, controlling indoor moisture levels provides comfort, reduces the risk of mold and allergens, and increases the durability of the structure of the home. In hot and humid climates, dehumidification can reduce the energy demands associated with air-conditioning.
According to the Home Ventilating Institute, a tighter, well-insulated home can save energy, increase comfort for its occupants, and create an opportunity to manage indoor air quality (IAQ). Maximum benefits can only be achieved through the careful selection of materials and the proper use of mechanical ventilation.
According to the Environmental Protection Association (EPA), homebuyers today are increasingly concerned about the poor indoor air quality and the presence of high VOC levels in their homes, including mold, radon, carbon monoxide, and toxic chemicals.
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The Inside Story On Humidity & Fresh Air
Every year for the past 20 plus years Therma-Stor (more specifically Ken Gehring) has attended the industry famous Westford Symposium on Building Science, or better known as Building Science Summer…