Published on February 1st, 2013 | by Henri


Condensation on the outside of windows

Q.  I had a 5-light bow window installed on the front of the house. There is argon gas and grids between the window panes. Also we have Ultra-U-Plus insulated glass. This is the trade mark of Sunrise Windows. Condensation formed on the outside of the windows after the last two rain storms. The contractor stated this is due to the large azalea bushes that are planted under the window. Is the condensation something I should be concerned about?

A.   I doubt very much that the azaleas are responsible. Condensation forms on the outside of insulated windows when a cooling rain lowers the temperature of the outer pane of glass while there is high humidity in the air.

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