How do I keep my storm door from icing up?

by Mag28612092

We have a glass storm door. It has always fogged up or frosted over. I have drilled holes at the bottom for circulation but that did not help. Lowed humidity in the house. Nothing works.

  13 answers
  • William William on Nov 17, 2018

    Do you have a main door to the house and the storm door on the outside? It's possible warm air from the house is leaking past the main door and hittng the storm door causing condensation. You need to check the weatherstripping on the main door. May need to replace or install weatherstripping to prevent warm air from escaping towards the outside.

  • Mag28612092 Mag28612092 on Nov 17, 2018

    It seals very tight but in will recheck it with a smoke bomb. Thanks.

  • Kelli L. Milligan Kelli L. Milligan on Nov 17, 2018

    I just thought that's what they do in winter.

  • Johnavallance82 Johnavallance82 on Nov 17, 2018

    Hello Mag,

    I fear you need to reglaze the door or replace the whole unit. The only temp. thing I could think of that will help with moisture build up and that is to place a Bowl of Salt just inside (It will draw the moisture) When full with water, empty water out and dry salt in the microwave and then place it back. repeat as and when. Otherwise buy dehumidifier packs and leave them about. Best wishes.

  • Gk Gk on Nov 17, 2018

    I have the same problem with my storm door. Most of the condensation is due to the fact that this is the door we use to take 2 dogs in and out. And the fact that northern Minnesota gets really really cold! This is a new storm door--my old one did not do this--and my inside door is also new with new weather stripping. I live with it in the winter but it drives me crazy! Since it does have 2 windows/screens that you can open and close I am considering adding a plexi glass "storm window"--there is a slot where it will fit--and perhaps that will help. I thought about sealing it with shrink wrap but the tape will not stick because of the cold and the moisture from the door window freezing and thawing.

  • Oliva Oliva on Nov 17, 2018

    Have you cleaned the glass with alcohol? Alcohol has a lower freezing point. You may also wish to wax the storm door frame, and check to be sure that the glass fits securely in the storm door. Is your glass a solid piece, or 2 panes (upper and lower, that slide over each other for winter use)?

  • Libbie B Libbie B on Nov 28, 2023

    We had to have a window company reglaze ours.

  • Kathy Gunter Law Kathy Gunter Law on Nov 29, 2023

    Try waxing to repel the water.

  • Johnavallance82 Johnavallance82 on Nov 30, 2023

    You could try using Shaving Foam, as they say that is good for stopping Mirrors from fogging up in Bathrooms, or maybe WD-40?

  • Mogie Mogie on Dec 01, 2023

    You need to drill holes at the top and bottom of the door. Drill four 3/16-inch-diameter holes, two about a half inch from the top of the door and two about a half inch from the bottom. This will allow air to circulate without reducing the effectiveness of the storm door.

  • Betsy Betsy on Dec 23, 2023

    Hi Mag: Maybe what works for mirrors will work for your door. Try spraying on a light coat of shaving cream and then wiping it off. Or, you can try using Rain-X, the product for car windows. Both should work :)

  • It sounds like condensation between your main door and the storm door. Try adding weatherstripping to the main door to stop the air leak.