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Checking Window Seals

posted by admin @ 2:40 PM
Tuesday, November 26, 2013

Inspecting  Window Seals

 

Many newer windows have more than one pane of glass. The area between each pane is either airtight or filled with an insulating gas thus creating a temperature barrier.  If the seal around the pane is “broken” it can allow air and/or moisture to enter and reduces the thermal efficiency of the window.  Replacing the seal is a job for a professional window glass contractor; however, a homeowner can perform a quick window seal inspection a few times a year as follow:

  1. Carefully inspect each window visually for the presence of condensation or water spots between the panes.  Windows with broken seals often appear foggy.
  2. On a cold day, touch the outside of each windowpane.  If any of the panes feel warmer than the others, it maybe allowing heat to exit the home through a failing seal.  Look closely for distorted or damaged neoprene (the synthetic material resembling rubber )around the edges of the pane.

As necessary, have a professional home inspector provide a second opinion before buying a replacement pane or window.  Most units will require removal and replacement instead of permitting for an on-site repair.

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