I stoßlüften 3x a day and have a hydrometer.

These two skylights are in my bathroom and hallway, neither of which have windows on the wall that I can open.

There is a bit of mold growing in the corners of the windows, no other mold elsewhere in the apartment thankfully. I noticed it a couple of months after I moved in (not sure if it was there from the beginning) but it hasn’t gotten worse since I’ve noticed it.

My bathroom stays above 60% humidity for a couple of hours after showering even with opening the windows in the rest of the apartment, there is a vent but I don’t think it has a fan.

Should I just get some Schimmel spray and call it a day? It’s too high to scrub but I can spray a little bit up there on a stepladder, but some does come misting down on me so I’d like to not use bleach.

Any other advice is welcome.

by sharpwarbler

3 comments

  1. I hope some better advice is given but this is what I do:

    * Get on the stepladder
    * Spray affected area with hairspray (clear coat lock it in so when you scrub you aren’t spreading it into the air)
    * After a moment, very carefully spray some Schimmel spray (such that very little spray comes down on you).
    * Follow directions of the Spray. For me: Wait 5 minutes. Scrub with a sponge and hot water. Discard Sponge and Water. Wipe with a Damp Cloth and Hot Water. Discard Cloth and Water. Wipe with a paper towel. Discard Towel.

    Best of Luck.

  2. Mold spray will not do you any good unless you also remove the mold. Get a ladder, get up there and properly clean that skylight.

  3. That’s normal. Up there the moisture condenses…
    As long as it’s still warm-ish outside, leave those skylights open for a day or two every now and then?

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