Why Are My Windows Sweating On The Inside?

Now that cooler temperatures have arrived, some homeowners may be noticing a disconcerting condition where windows sweat.  To fix this problem, you must understand that sweating windows occurs when warm, damp air comes in contact with a cold, smooth surface.  Window condensation such as this, is the same reason that a can of pop sweats when you have it outside on a hot, summer day.  Your home’s humidity levels should be 30-50% and even lower in the winter months.  If your home’s humidity is higher than this, it will be evident through “sweaty” windows.

What Causes Condensation On Windows?

To understand what causes condensation on windows, you must understand how humidity gets in the air.  Several ways including:

• Steaming produced from cooking
• Gas fireplaces without proper ventilation
• Improperly vented bathrooms
• Bathroom doors with too small of a gap, that traps moist air in the room
• Inadequate dryer vents
• Carbon monoxide exhaled through one’s normal breathing process

How To Fix Sweating Windows Temporarily

• Keep your home between 62 & 68 degrees during the winter.
• Verify that your dryer vents are adequate for your home
• Run a dehumidifier
• Always run an exhaust fan when cooking and showering (especially if your bathroom doesn’t have windows)\

How To Keep Windows From Sweating Permanently

he above ideas may temporarily alleviate condensation on the inside of windows but the only way to completely rid your home issues is with a window replacement.  The condensation on windows is evidence they are not providing ample insulation.  Windows best suited to provide insulation and increase your home’s energy efficiency are those that are triple pane.  This means they contain three panes of glass that are separated by air spaces.  

They’re a great way to save on your energy bills because they have more surface area, which is used to absorb both warmth and cold, putting less stress on your home’s furnace and air conditioner.  Vinyl and wood frames will work much better than those made of metal because metal is a conductor which means it will increase the chances of windows sweating since it will transfer the cold air indoors.

For more information about our window installation services, contact us today. Our team of professionals is ready to serve you.