Doors and Windows - window condensation

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View Full Version : window condensation


03-06-01, 05:50 PM
I HAVE DOUBLE PANE LOW E WINDOWS THE CONDENSATION IS SO BAD THE POLY COATING IS COMING OFF HOW DO I STOP THE CONDENSATION


lefty
03-06-01, 11:52 PM
The condensation is occuring because the seal between the panes has failed. Only cure is to replace the glass units. Dpending on who's windows they are, and what sort of a warranty came with them, and how old they are, it's possible this may be covered by the warranty. Otherwise, call a local glass shop and have them order new IG units for you.

allan
03-08-01, 04:45 AM
If the condensation is between the two panes of glass the seal has failed and the IG unit needs replacement as lefty has mentioned. If the condensation is on the room side of the interior pane, the cause is excessive moisture in the house. If this is a new home all the material to construct it from lumber to drywall is still drying, giving off moisture. Also your daily routine of washing & cooking adds to the humidity level of the house. If you do not have an air exchange system, turn on the exhaust fans, open a window a crack to reduce moisture levels.


03-09-01, 09:31 PM
We've have the same problem. We replaced all of our windows w/Pella Prolines and two large Peachtree picture window units and they all have condensation on the lower sils and around some of the edges. Talked to numerous installers and they all pretty much said the same, in that the moisture in the house was the culprit. The picture windows are worse than the smaller dbl hungs. This house is @45 yrs. old with plaster walls. I guess its the nature of the beast. I have resolved to the fact that this is the norm.....However, if the seal has broken on the window you would see heavy white/grey fog inside the two panes. Hope thats not the case. Good luck

lefty
03-09-01, 10:17 PM
Let's clarify a few things here. lboone seems to be talking about condensation that is taking off the low-e coating of the windows. Since low-e coatings are applied BETWEEN the panes of a thermal pane window, that tells me he or she is dealing with condensation between the panes. That means a broken seal. Whiteowl seems to be talking about condensation forming on the surface of his or her windows -- he or she could wipe if off with a rag, if so inclinded. THAT is a totally different problem, with totally different causes, and totally different cures. The only common link is that both are talking about condensation that is showing up on their windows. Kinda like having a puddle of water on your floor. If it's caused by a roof leak, you fix it one way. If it was caused by a leaking water pipe, the necessary cure is totally different. And if it is the result of a very young pet in the house, you're looking at still another totally different solution to the problem!

03-10-01, 06:54 AM
MY QUESTION MAY NOT HAVE BEEN VERY CLEAR, THE CONDENSATION IN NOT BETWEEN THE PANES ITS INSIDE THE HOUSE AT THE BOTTOM OF BOTH THE UPPER AND LOWER WINDOWS THANKS.

allan
03-10-01, 08:33 PM
Hello Iboone. As I stated in my earlier post, the condensation is from a high humidity level in the home. New homes are built more air tight these days increasing their energy efficiency, but without a balanced air exchange system, a tighter envelope locks in moist stale air causing your existing problem & others. If this is a new home the material it was built with will take a season to give off laten moisture and the problem will not be as serious next winter. As for reducing other producers of moisture in the home, monitor your daily routine. Open a window a 1/4 - 1/2" and turn on the bathroom ehaust when showering. Do the same when cooking. Ensure your clothes dryer is vented outside,& avoid hanging clothes to dry in the basement. Don't store any firewood in the house or basement ( this is for moisture & bugs), remove interior screens during winter for better air circulation around the windows. Use a humidifier sparingly, preferably not at all. Don't leave any standing water in the house, ie; a full bath tub. Turn the thermostat a couple of degrees higher. Warmer weather is not too far away so as the temp increases the condensation will decrease. Good Luck.

03-12-01, 08:48 PM
ALLAN HAS THE PROBLEM RIGHT AND HOPEFULLY TEH SOLUTION
THANKS LBOONE