Window condensation occurs when the temperature of the inside glass drops below the dewpoint of the adjacent air. Window condensation can be caused by a variety of factors - excess moisture in the air, inadequate ventilation, temperature differentials, inefficient windows, and more. 

Reducing the amount of moisture in the air is the first thing to look into when addressing window condensation issues. If the indoor relative humidity is above 35% when the weather turns cold, consider turning the humdifier down or off altogether. All homes are different and some don't require supplemental moisture added during the winter heating season. Tighter homes and those with more people living in them often have more than enough moisture in the air already.  If humidity levels remain high without running any humidifier, some supplemental ventilation should be considered to head off any potential problems with mold or moisture damage to the building.  If your indoor humidity levels are low and you are still experiencing significant window condensation, then the quality of your windows becomes more of a consideration when resolving the problem.

To read more about what causes condensation and how it can be impacted by window performance, read this article from the NFRC and review the chart below (Source: RLC Engineering, LLC). The chart illustrates the relationship between outdoor air temperatures, indoor relative humidity and window thermal efficiencies.  Any points above the solid black lines may result in condensation forming on the surface of the windows. Note the difference in condensation resistance as the thermal performance of the window rises. Most new windows being installed today are double glazed (2 layers of glass).

If your windows are old, leaky or difficult to operate, consider replacing them with triple glazed super efficient, high performance R-5 and R-7  Windows from Energy360.

For more information about how we can identify the source of and eliminate problems like window condensation, contact us today to schedule a consultation.

We're commited to making your home more comfortable. Contact us today! 

877-336-0669

Schedule Service

SUBMIT

  • Leslie DiMaggio, Fox River Grove, IL

    I want to tell you that we are COMPLETELY satisfied with the work you guys did at the house... The house definitely feels cooler. We know you guys made an extra effort with us and also gave us a great price. We love you guys!!!!!!!! I have already recommended you to three people. Thanks!

  • Nina Brakel, Park Ridge, IL

    We LOVE the new windows. I can't believe what a difference it has made in the house - it is soooooo peaceful upstairs now. And, the outside of the house looks new! Thank you! And, you were great to work with - thank you. Gregg and I both commented on your professionalism and knowledge.

  • Toby Trabert, Oak Park, IL

    I own a Victorian style home that desperately needed insulation. I hired Energy360 Solutions and they discovered major air leakage through the many nooks and crannies of my attic.

  • Scott Gillis, Woodridge, IL

    My home was uncomfortable. It was so difficult to keep it warm in the winter and there was no sound barrier. We could hear everything that was going on outside. We needed insulation and called Energy360 Solutions. They provided us with a great solution using dense packed Cellulose insulation.

  • The Holzl Family, Mt Prospect, IL

    After 14 years of living in our house, and suffering each winter in our chilly family room built over a crawlspace, we hired Energy360 Solutions to perform an energy audit of our entire house. One of their findings was that we were losing heat out of the wall joists of the crawlspace.

  • Ken & Julie Kittredge, Mt Prospect, IL

    Our first ever energy audit from Energy360 solutions was a very exciting and interactive experience. We learned so much about the energy efficiencies of our home or better said the lack of efficiencies.

  • Mark Hoffmeister, Mt Prospect, IL

    Our home was sealed and insulated in March 2014. The results were immediate. The house air conditioning was improved especially in the upper floors. This cold winter comfort improvement in heating the house was successful.