Condensation Problems in Bathroom Skylights – Remodeling and New Construction



here's a question I received a while ago someone was wondering what types of problems they might encounter with condensation if they installed a skylight in a bathroom and what you're looking at here is a skylight located in sunny Southern California it's a spring morning and there's plenty of condensation on the skylight and of course this is on the bottom side of the skylight now since they're remodeling the bathroom it gives you a pretty good idea that no one is using a hot shower no one's taking a hot shower they're not using the bathtub there's really no moisture produced from the warm water which is usually gonna be the case in MO the biggest problems with condensation in your bathroom skylight so keep that in mind long showers with a closed door not enough ventilation will produce condensation it's going to head towards the skylight and of course the weather if you live in a climate with a drier climate desert climate where there's not a lot of moisture in the air you're not gonna deal with this problem as much of course you might deal with it when you take a long warm shower but you're not going to deal with it most of the time in drier climates however in humid climates a lot of moisture in the air problem like this could be worse and that could create problems for your framing and the drywall or plaster also so there you have it I hope it answers your question if not feel free to email me again or leave another question in the comment area

3 Comments

  • gian1000

    April 15, 2019

    I live in Florida. My skylight is in the guest bathroom, with a long shaft. Problem is, the shaft gets really hot, producing condensation around the ac vent, and im also getting mold on the ceiling of the bathroom. Is definitely inside the bathroom, since i already check inside the roof, and theres no sign of mold there. Should i shut the skylight down? Or try to get better insulation on the skylight? House was built in 1989. Thanks.

    Reply
  • MrMac5150

    April 15, 2019

    Happy New Year Greg

    Reply
  • John Ho

    April 15, 2019

    Hi Greg, Besides a bathfan, what are some solutions to this? Have you ever heard of using an indoor storm window during the winter months?

    Reply

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