Renovating the bathroom and found these dark patches in the joists and roof lumber surrounding the old vent pipe. The PVC part is new.

Anything bad here? Anything we need to address?

  • mindlight
    20·
    1 month ago

    I’m not a professional and not living in the US.

    1. Get a Wood Moisture Meter and check everything. If the wood contains more water than it should you have an ongoing problem and there is ongoing microbiological growth.
    2. Some of the Black / Dark parts look like fungus. (In Swedish “svartmögel” which is directly translated to “black mould”). That shit can cause allergies and worse shit.

    All in all: get a professional to check this. I’m Sweden we have “building inspectors” that are experts in leakage and mold that checks this for you.

    • davidalso@lemmy.worldOP
      9·
      1 month ago

      Hejsan! Jag är amerikan men bodde jag i Sverige några år sedan. Tack så mycket för dina råd. Det kan var lättare i Sverige för sådana saker, tror jag.