July 2006
This overview of air admittance valves includes basic information about what it is and what it does, costs, benefits and drawbacks, and real-world feedback from field evaluations.
Air Admittance Valves TechSpecs will also help you learn what it takes to switch to an air admittance valve, what to consider when determining if an air admittance valve is right for your next project, steps to take if you decide to install one instead of a standard venting system, and additional resources for more information.
Prepared for:
U.S. Department of Housing and Urban Development
Prepared by:
NAHB Research Center
4 pages