This will allow air to circulate without reducing the effectiveness of the storm door.
How to keep a glass storm door from frosting up.
Water or frost on doors or windows is condensation.
If so the cold outside air will cause the moisture to freeze.
I would check to ensure your front door isn t leaking warm interior air out to the space between the doors.
Buy a window film kit when applied to your windows this film can keep glass surfaces free from condensation by blocking warm indoor air from reaching the cold glass.
Allowing moist air to exit and dry air to enter will keep air well circulated inside use a dehumidifier to help get rid of moisture in the air.
I m assuming you have a glass storm door in front of your main door based on your description.
You ll have to unscrew the current bottom expander and then use a drill and screwdriver to raise it 1 4 to 1 8 inch or so.
A desiccant can also be used to suck up moisture.
Lowed humidity in the house.
Use a dehumidifier this quiet and energy efficient system will remove moisture from the air and prevent condensation on your windows.
Raise the expander on the bottom of your storm door to allow for a small gap if your storm door frosts up too quickly when the interior door is open or you just don t prefer the condensation.
Condensation is formed when warm moist air comes in contact with cooler dry air just as a bathroom mirror will steam up after a hot shower.
We have a glass storm door.
The solution in that case is to 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.
It has always fogged up or frosted over.
I have drilled holes at the bottom for circulation but that did not help.
Ensure that all outside ventilation sources are open and allowing fresh air inside open windows and doors regularly to air out the house.
Keeping plants in a sunroom or in rooms that are.