More than a few homeowners get alarmed when they see condensation on their windows and patio doors. You shouldn’t always be, however. In this blog, Renewal by Andersen® of San Diego discusses the different types of window condensation and what they mean.
How Does Condensation Form?
To understand condensation, look at how it forms first. Condensation develops when moisture in the air meets a cold surface. For example, when you leave a glass of cold drink on the table, condensation is formed not from the contents of the glass, but from the moisture in the air. The more humid the environment, the more condensation will form.
Summer Condensation vs. Winter Condensation
Condensation may form on your windows during seasons with temperature extremes. During summer, condensation usually forms on the outside of the windows as the indoor temperature is cooler than the outdoors. If this happens, relax; your windows are fine. While the cooler indoor temperature can be felt outside, as evidenced by the windows, it doesn’t mean heat is leaking into your home.
Indoor condensation is a bit different. In winter, the reverse is happening. Outdoor temperature is cooling the interior window surface, which causes indoor moisture to collect on the windows. The good news is your windows are still perfectly fine. However, you will need to address why there’s condensation in the first place: high indoor humidity levels.
Addressing Indoor Humidity
Winter is a dry season, which is why many people tend to have cracked skin and lips during this time. Humid indoor spaces during winter can be problematic; it can cause mold growth and make clothes and sheets feel cold and clammy. Control the amount of moisture in the air by using an exhaust fan when you take a hot bath or shower, letting the fan run for another 10 to 15 minutes after you’re done. Use the range hood exhaust fan as you cook.
Make sure your HVAC system is sized properly and set up correctly to avoid what’s known as “short cycling”, or turning on and off too fast. Your humidifier in winter may be set too high; reducing the required humidity levels may help reduce condensation on the windows during winter.
Renewal by Andersen of San Diego is your leading provider of replacement windows and patio doors, including sliding French patio doors. Give us a call at (858) 935-8451, or fill out our contact form. We serve customers in San Diego and the surrounding areas.