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  1. #27
    Join Date
    Aug 2003
    Location
    Fort Worth, TX
    Posts
    11,467
    Post Likes
    Clever solution for the chase and pipe.

    That orange spot appears to be light surface rust. If it bothers you, sand it off and apply a coat of shiny spray paint to protect the fitting.

    Most of the time, if a leak was in this location, you would see and feel traces of oil on the surfaces.
    Building Physics Rule #1: Hot flows to cold.


    Building Physics Rule #2:
    Higher air pressure moves toward lower air pressure


    Building Physics Rule #3:
    Higher moisture concentration moves toward lower moisture concentration.

  2. #28
    Join Date
    Nov 2010
    Location
    Central Florida
    Posts
    588
    Post Likes
    Okay, thanks guys, that "blistering" is likely just traces of normal copper/weld oxidation I'm guessing.

    I'm going to try and get a ventilation expert out to the house next to see maybe if he can give an expert opinion on the ventilation situation and what may be going on with the ridge vent in particular.

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