How to Get Rid of Foggy Windows in the House

If you have double- or triple-paned windows, you might notice that they have fog between the panes. Foggy windows are more than a pain; fog in your windows obstructs your view of the outside and generally doesn’t look very appealing.

Properly insulated windows shouldn’t fog up, but moisture can gradually get between the panes when the seal is compromised. Temperature changes inside and outside the window panes cause moisture and calcium deposits to build up and etch your glass. This can break the seal and cause foggy windows.

If your windows are around 10-15 years old, a total replacement might be in order. Completely replacing your windows will help your home’s energy efficiency, and you’ll have a better chance of combating foggy windows. However, if your windows are not that old, then professional de-fogging might be your best choice.

Defog By Removing the Window

If your sealant fails, then your window will no longer be terminally efficient until the sealant is repaired. This process costs much less than replacing the windows, as it requires less labor and fewer parts. The following method is how you or a professional can replace your window’s sealant:

Step 1: Remove the Window Rim

Remove the window rim and carefully remove the window panel with a suction cup device.

Step 2: Dismantle the Window

Dismantle the window by separating the glass from the sealant with a razor or other sharp object. Take out the glass, frames, and sealant. Do this process carefully to avoid breaking the glass.

Step 3: Strip Sealant Residue

Remove any sealant residue left behind. Thoroughly clean each pane on both sides.

Step 4: Fix the Frame

Remove any sealant from the frame, and remove the silica beads. Replace them with new silica beads to help absorb moisture and prevent future fogging.

Step 5: Replace Panes

Replace the panes in the frame and apply a silicone caulk around the sash edges. Wait for it to dry, then remove the excess.

Step 6: Apply Window Seal

Finally, apply a window seal and make sure there’s a thick layer on all corners. Once dry, put the panel back in place and secure it.

Replace the IGU

Modern windows are insulated window units, otherwise known as IGU. This means that two or three panes of glass have argon or krypton between them and are factory-sealed to form a single unit.

If your window loses the argon or krypton in the middle, it can cause the window to fog up. You can always check with the manufacturer to see if the panels can be replaced without replacing the entire window.

Contact Timberline Roofing and Contracting for Window Replacement and Repair

If your old windows need to be replaced, contact Timberline Roofing and Contracting for all your window replacement needs. We have served Minneapolis, St. Paul, and the upper Midwest area for more than 20 years, and we’re here for you.

Call us today at 612-284-5329 or send us a message on our website.