How do you prevent mold from growing on HVAC ceiling vents?

  4 answers
  • Dfm Dfm on Jan 04, 2018
    dust regularly. mold needs a food supply, water supply. deprive it of such.

  • Bebe Bebe on Jan 04, 2018
    If your vents are closed and mold is growing on the ceiling vents where they are closed, I suggest your contacting your HVAC company. I did that and my HVAC company told me not to close the vents from the ceiling. They need to be closed off from behind the vents (kind of like a damper) to prevent the air from getting to the vents. Once I had them do that, all is good. Hope my experience helps.

  • Veronica Veronica on Jan 04, 2018
    Are you sure it's mold? Or dust and dirt? If it is mold. You need to replace the vent & have it installed properly with a roof vent.

  • 2dogal 2dogal on Jan 04, 2018
    Sounds like you have a humidity problem. Contact your HVAC company.