One of the most common reasons for cold air entering through double glazed windows is worn or damaged seals. These seals are crucial for maintaining the airtight gap between the two panes of glass. Over time, exposure to the elements and general wear and tear can cause these seals to degrade, leading to drafts.
Is it normal for double-pane windows to feel cold? Yes, but they shouldn't feel freezing. On a 20°F day, well-insulated double-pane windows should be around 40-50°F. If they're colder, check for drafts or damaged seals.
This can happen because the seal around the frame has degraded, the sash has dropped, or the hinges, handle, or lock are damaged. Besides causing a draught, these issues are also a security risk, making forced entry easier. Draughts are common in single-glazed windows but can also occur with double glazing.
Yes, a hair dryer (or heat gun) can get rid of condensation between glass panes. Using a hair dryer on the outside of the glass unit extracts excess moisture resting between the two glass layers of the double-pane windows, reducing the buildup of condensation.
Single-pane glass can lose up to ten times the heat of the same area of an insulated wall. Double glazing can reduce that heat loss by as much as 50%, while triple glazing can cut heat loss even further to around 20%.
The typical lifespan for a double-pane window is 20-25 years. But that depends on the quality of the window and the outside environment. A lower-quality window may start to fail after 10 years, and harsh weather conditions can take a few years off of a window's life.
One of the easiest ways to test your double glazing windows for heat loss is by using a flashlight. On a cold day, turn off all lights in the room and shine a flashlight on the window glass from the outside. If you can see the light through the window, it may indicate heat loss.
Use a hair dryer or heat gun on the window panes from the outside. This will help to absorb any excess moisture that has been trapped between the two glass layers of your double pane windows and reduce condensation build-up.
Drill two small holes near the bottom of the pane, and then use a cleaning solution or a dehumidifier to remove the moisture. After the window fog has been eliminated, spray an anti-fog solution inside the glass and add small vents before sealing it with clear silicone caulk.
Unfortunately, cleaning the inside of double-pane windows is not recommended. The space between the two glass panes is sealed and filled with insulating gas, which helps with insulation. Opening the window or attempting to clean the inside can compromise the seal and lead to moisture or condensation buildup.
When your glass feels cold to the touch, it is typically not due to leaking air. Instead, it is reflective of a difference in temperature from the outside to the inside of your home.
Draughts can occur due to various factors, such as:
Age and wear: Over time, UPVC windows may deteriorate, leading to gaps and cracks that enable draughts. Sealant degradation: The sealant used to secure the windows can degrade over time, compromising its effectiveness in preventing draughts.
Double-glazed windows should feel cold on the inside when you touch them.
Gaps between the window frame and the wall, improper alignment, or inadequate sealing during installation can all contribute to air leaks. Damage to the glass itself can also be a source of cold air.
“If you notice this on the outside of your windows, there is no need to worry. However, if you notice condensation on the inside of your windows or between glass panes on double- or triple-paned windows, then this can be a sign of a worn-out window seal or excessive humidity within your home.”
Drilling a few holes into the window will allow you to tuck a small desiccate packet into the window to absorb any moisture that has been caught between the two panes. The holes also allow you to rinse out the window with rubbing alcohol (isopropyl), to remove any dirt.
Different types of windows have different life expectancies:
Double-Pane windows – 10 to 20 years, average 15. Fiberglass windows – 20 to 45 years, average 35. Skylight – 8 to 20 years, average 14.
How to Fix Moisture and Condensation Between Double Pane Windows. Dealing with fogged double pane windows can be a hassle. When condensation between window panes forms, it means the seal on the insulated glass unit (IGU) has failed. Thankfully, the solution is simple — replace just the glass, not the entire window.
Use a Hairdryer
Another quick way to fix this is by getting a hairdryer and using its heat on your double glazing in order to dry the moisture out immediately. Be careful not to use too much heat as this could cause trouble over time when the temperature is too high.
Should You Wipe Condensation Off Windows? Yes, wipe off any condensation on your windows with a soft microfibre cloth. It's one of the first things you should do. Not only does it protect your windows and sills, but it also helps maintain healthier indoor air quality by stopping mould from growing.
Moisture-Absorbing Applications
For combating excess humidity, dehumidifying solutions like WD-40 Original Spray can be applied to both sides of double-glazed windows, acting as a barrier against moisture penetration.
To check whether your windows are performing well or not, stand by them to see if it feels cooler than the rest of the room or if the glass is cold to touch, then it's highly likely that you're wasting energy. Check for gaps in your window frames too.
One of the most well-known ways to reduce heat loss through windows is having multi-glazing windows. Double and triple-glazing windows help and aid in reducing the radiation through the glazing process. More information regarding DAKEA's multi-glazing roof windows can be found here.
If you're running Windows 11, Windows 10, or an earlier version, it includes its own temperature check built into the BIOS/UEFI. To access it, turn on your PC and press a specific key during startup — usually F12, ESC, F2, or DEL. Once BIOS/UEFI is open, you'll find the CPU temperature right on the main screen.