condensation

[chris1970]

why do i have condensation around the bottom of my double glazing i thought that having double glazing stopped that sort of thing Any ideas????????????

[Clanad]

Well, look at it this way.... The double glazed windows are two seperate sheets of glass set in a metal frame with an airspace between which is either evacuated to a near vacuum or filled with an inert gas (which I'm sure you already knew). The metal frame still conducts cold between the two sheets of glass on the borders. It's not nearly as conductive as a single sheet of glass, but notheless, the area on the glass near the metal is colder and moisture in the home condenses. It can help, of course, to attack the source of the moisture in the home in the first place. If the condensation is worse in one room than another, try running a dehumidifier in that room. Secondly, set up an inexpensive fan near the windows to circulate the air. By the way, here in the U.S., some of the double glazed windows are set in plastic framing, which seems to help, but still doesn't totally end the problem... Best of luck!

[Ethel]

Clanad - here in the UK most double glazing is set in plastic frames.

Chris - how old is your DG and is it in good order? No blown windows etc?

[Lonnie]

Sounds like one or more seals have eroded.

[parkesquay]

This might not be so in this case but many people seem to think that they still don't need ventilation because they have DG. If one thinks about all the moisture generated in bathrooms for example, it has to be vented somewhere and thus it is essential to open windows or have at least an extractor fan.
Although I have DG the windows still have small open/shut vents to aid air circulation.
Assuming that you do take care to vent moisture then I guess you have a structural fault in that particular pane. Ethel/nall this

[Trackman]

If your curtains or nets are too close to the window it will stop the circulation of air and condensation will occur. Also the vents in the windows if you have them should be opened to allow the air to circulate.