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    • 18 June 2014 at 3:02 pm #31874
      Anonymous

        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,

        Andy

      • 18 June 2014 at 5:23 pm #39151
        Nick Grant
        Participant

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

          Nick

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