How to Prevent Mold Around Windows

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The area around your windows can be particularly prone to mold growth. This can be because of condensation or moisture leaks around the window casing. Mold isn't just ugly; it can also compromise your health and destroy the window frames. The following guide can help you both prevent it and remove it when it grows near a window.

Keep frames in good repair

Wood frames are more prone to moisture damage, including mold, compared to the vinyl or aluminum frames. Often non-wood frames will still feature a wooden sill indoors, so skipping the wood windows doesn't necessarily protect you. You can cut down on mold growth or at least make cleanup easier by ensuring that the windows are kept in good repair. Repaint the sills and frames if the paint begins to peel, bubble, crack, or otherwise appear worn. Any exposed wood should be covered immediately—at least with touchup paint until you are ready for a full painting job.

Stop window condensation

Much of the mold-fueling moisture around windows is because of condensation. Temperature differences between the inside and outside of the home are the main culprit in causing condensation. Running a dehumidifier can cut down on its formation. Using storm windows or insulated multi-pane windows can also reduce condensation, since this helps insulate against the temperature fluctuations. Drying the windows several times a day may also be necessary so that the damp doesn't drip onto window frames and sills.

Seal against leaks

The final cause of mold is leaks around the window. These are caused either by faulty weatherstripping or old, crumbling caulk. Replace the weatherstripping around the moving section of the window if it is damaged, warped, or missing. You can reseal around the caulking by carefully scraping out damaged sections and then applying a fresh bead of caulk to the area.

Combat existing mold

Act quickly if you notice any mold growth. You can usually kill it and lessen the staining by using a solution of equal parts water and bleach. Make sure you wear gloves and a face mask since both the bleach and the mold can be irritating. Wipe down the area thoroughly with the bleach solution. You can also use any household cleaning product that is formulated to destroy mold. If the problem has penetrated into the window sills or nearby drywall, you may need professional help to fully solve the issue.

For more help or for mold testing, contact a mold-remediation contractor in your area.

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