The American Architectural Manufacturers Association (AAMA) has created a new web page to help homeowners understand why and how indoor condensation develops on residential windows and what can be done about it.

“This was needed because it provides direct, simple answers to the common question, ‘Why is there condensation on my windows?’” says Joe Hayden of Pella, co-chair of AAMA’s Understanding Residential Condensation Task Group. “Condensation can form for a variety of reasons, and this resource provides clear explanations as to why it happens. As a respected source of information for the window, door and skylight industry, it’s important for AAMA to have answers to these questions.”

The web page defines window condensation and explains the relationship between relative humidity and dew point, in addition to other factors that contribute to indoor condensation. A chart shows recommended indoor relative humidity based on the outdoor air temperature. Another section of the site deals with skylights, which can be exposed to condensation because of the tendency of warm air to rise.

Locations within the U.S. also are taken into consideration, since windows in Arizona are not often exposed to the same humidity and temperatures as those in Minnesota. The page also offers tips for managing indoor humidity levels.

Leave a Reply

Your email address will not be published. Required fields are marked *