Stopping moisture between windows and storm windows often involves addressing the source of the moisture – typically warm, moist air leaking from inside your home.
If you're seeing moisture buildup between your interior window and the storm window, this most likely indicates that warm air from inside your house is leaking out. This warm air carries moisture, which then condenses on the colder storm window surface.
The provided reference confirms this: "If it is between the inside and storm window, you most likely have air leaking out of the house. This warm air carries moisture with it."
Temporary Solutions for Window Condensation
While finding and sealing the actual air leaks in your window frame or wall is the long-term solution, there are temporary fixes you can apply to help reduce or eliminate the moisture.
Based on the reference, temporary approaches include:
- Covering the window with plastic film: A common and effective temporary solution is to apply heat-shrink plastic film kits to the interior window frame. This creates a sealed air pocket that prevents the warm, moist indoor air from reaching the cold storm window surface. The reference states: "A temporary fix would be to cover the window with plastic film."
- Using temporary weather stripping: Applying temporary weather stripping around the tracks or edges of the interior window can help seal gaps where air is leaking out. The reference mentions: "Another possibility is to use temporary weather stripping around the window tracks."
These temporary measures create a barrier that reduces or stops the flow of moist indoor air into the space between the windows, thereby preventing condensation.
For a more permanent fix, you would need to identify and seal the air leaks in and around the window frame itself using caulk or expanding foam, and ensure proper insulation.
