Go to Forum Home Building Design AAVs and Airtightness

Viewing 1 reply thread
  • Author
    • #31874

        Hi all,

        A quick question about using Air Admittance Valves (Durgos) in a Passivhaus. (Note that the drain will be ventilated with an external open vent at the end of the run.)

        Are there any implications for airtightness and airtightness tests? I can't find information on the opening pressure apart from one test document which seemed to suggest it was sixty-something Pa. Can/should I seal AAVs during testing?

        Thanks in advance,


      • #39151
        Nick Grant

          We seal them and also make sure traps have water in.


      Viewing 1 reply thread
      • You must be logged in to reply to this topic.