When winter rolls around, do you ask, “Why are my windows foggy?” And more importantly, “What am I going to do about it?” Let’s dig into the perennial problem of foggy windows and the steps you can take to remedy the problem.
Foggy Windows in Winter
Foggy windows are often caused by a buildup of condensation on the windows in the winter due to temperature changes. Winter window condensation is more common because the interior temperature of your home is much warmer than the exterior temperature. Often the indoor air is also more humid than the colder, dryer outdoor air, which can cause window condensation to become a problem.
If you have double-pane windows, fogginess can also be caused by a broken window seal, which causes moisture to build up between the two panes and makes them appear murky and foggy.
Step-by-Step Guide to Fixing Foggy Windows
Knowing the cause of foggy windows is helpful, but learning how to fix windows that are foggy is what will help you see more clearly, which contributes to the quality of life in your home.
Identify the Type of Fogging
The first step in knowing how to fix foggy windows is identifying the type of fogging you are experiencing to find the right solution to reduce your window’s foggy appearance.
There are three main types of fogging:
- Interior surface fogging: Often caused by high indoor humidity.
- Between the panes fogging: Usually a sign of a broken window seal.
- Exterior fogging: Indicates efficient window insulation with a larger difference between indoor and outdoor temperatures.
Quick Solutions
Clean the Windows
Condensation is less likely to form on a clean window surface. Wiping down your window surfaces with a microfiber cloth can provide instant clarity and help reduce the rate of condensation build up.
Use a Dehumidifier
A dehumidifier is designed to extract humidity from the air, making your home’s interior less humid and therefore less likely to cause condensation, especially in winter when the outside air is most likely drier. Running a portable dehumidifier for windows during the winter months can cut down on window condensation and the conditions that cause window fogginess.
Other ways to cut down on the humidity in your home include:
- Turning on kitchen/bathroom exhaust fans when running hot water
- Taking shorter showers
- Removing plants from directly in front of your windows as they tend to transpire and release water vapor
- Inspecting your home for water leaks, especially in pipes and fixtures to prevent excess moisture escaping into the air
- Investing in a moisture meter to identify water leaks behind walls or under floors
Fix Broken Seals
If you suspect a broken window seal, you will need to assess the extent of the damage to determine the best course of action. You can repair broken seals, but you may also need to replace the window.
Window seals are more likely to break under certain circumstances, such as:
- When exposed to extreme temperatures
- As the window ages
- If the window was improperly installed
- If the window has been damaged through accidental force
Foggy windows are one sign of a broken seal. Other signs are seeing light coming through the edges of your window frame or feeling drafts of air around your window.
Reseal Vs. Replace
A broken window seal means your window is damaged and needs to either be repaired or replaced. It is best to repair the damage quickly as it can cause more problems the longer it is left unrepaired. A broken seal can cause your home to be poorly insulated and raise your energy costs. It can also cause moisture to seep into your home, causing mold and mildew issues and rot certain window frames.
If the damage is extensive, you may want to consider replacing the window. If the damage appears to be more contained, a reseal repair is merited. You may want to consult a professional to determine the extent of the damage.
DIY Options Vs. Professional Services
Window seals repair can be a DIY project, but it may also call for a professional. If you opt for the DIY path, check first the location of the air leak and pinpoint where the seal is broken. Clean the surface with a damp cloth and mild detergent before applying any new sealant or it may not adhere properly. Apply a new exterior caulk to reseal the window and smooth with a caulking tool. Allow the caulk to dry fully before using your window.
If you have a double-pane window with a broken interior seal, it means that the gas that fills the space between the two window panes has escaped. It is no longer providing the added insulation of a double-pane window. A window repair professional can replace the gas between the two panes and reseal the window. If the damaged seal is extensive, you will most likely have to replace the window.
Improving Air Circulation
Another way to cut down on moisture on windows in winter is to improve your home’s air circulation. Open blinds and curtains to increase airflow. When it is warm enough outside, open windows to circulate fresh air. Also, running ceiling fans for continuous air circulation can be beneficial.
Cutting Down on Drafts
Drafts can make condensation worse, so cutting down on drafts can also help in cutting down on foggy windows. Some quick solutions to preventing excessive drafts include:
- Installing weather stripping
- Using foam tape
- Insulating with window film
- Hanging insulated curtains
- Replacing window caulking
The purpose of these measures is to improve your windows weatherproofing properties. Weatherproofing windows by applying window insulation kits or films during winter is helpful and can make a difference by cutting down on drafts. This type of weatherproofing can also be a temporary solution for improving broken window insulation. None of these solutions, however, are long-term for solving the overall problem of foggy windows in winter.
Preventative Measures for Long-Term Solutions
There are other long-term window fogging solutions that can be applied to solve the perennial foggy window problem.
Install Double or Triple-pane Windows
Double or triple-pane windows are filled with gas between the panes and provide the best insulation around and through your windows. Call a window professional and get an estimate on the cost of installing new windows. You may want to start by replacing the most troublesome windows in your home first and go from there.
Use a Hygrometer
Maintaining a balanced humidity level in your home can go a long way in solving your foggy window issues. Install a hygrometer, which is a device that monitors the amount of moisture in the air inside your home, to help you maintain this balance and create healthier and more comfortable interior air quality.
When to Call in the Experts
If you suspect your windows are past their prime and costing you high energy bills, poor interior air quality, and a diminished use of your windows, then it may be time to call in a professional and replace your windows.
Window Replacement Signs
Telltale signs that a window replacement is necessary include:
- Difficulty opening and closing your windows
- Excessive condensation that does not abate with other solutions
- Excessive leaks and drafts that affect the quality of your interior air
- High energy bills accompanied by difficulty in maintaining a comfortable interior temperature
- Outdoor noise that seeps into your home
- Visible damage to the window panes, such as cracks
- Damaged or decaying window frames
- The advanced age of your windows
Hiring a Reliable Window Repair Service
When it is time to replace your windows, you will want to choose a reliable window repair service. You will want to research companies in your area and check on their online reviews. Make sure to get multiple quotes for the work and verify the company’s licensing, insurance, and certifications as you do so. You will want to prioritize companies that offer you a clean estimate, clear warranties, and detailed information on the installation process. They should also have expert knowledge of window brands and models on the market and help you with choosing what is best for your home. The professionals at Climate Seal are energy efficiency and window replacement experts and can recommend the best windows for your home and budget needs.
A Few Final Words on Foggy Windows
If you are experiencing foggy windows in winter, a few simple steps like cutting down on your home’s interior humidity levels, improving air circulation, and sealing up drafts can be helpful in fixing the problem short term. If foggy windows are pointing to a more extensive problem, however, it is likely time to call a window professional, like those at Climate Seal. The benefits of maintaining clear and functional windows, such as energy savings, improved aesthetics, and better views, will also improve the quality of life inside your home.
