Comments on: How to Cure Sweating Windows

By: Seann Osborne

Seann Osborne — Thu, 05 Nov 2009 16:46:14 +0000

our office is located in Tampa Fl. We have offices along the front of our building with large windows at each office. We have noticed that the wall below the windows are getting saturated. I can only guess that the windows are sweating at times really bad. lately we have noticed that the mats in each of our offices are molding underneath. our ac system shuts down at night and turns on early in the morning. Do you think that this fluctuation of temp could be causing this problem?

By: bev

bev — Sun, 01 Nov 2009 22:00:58 +0000

my ceiling sweat in the winter time and leave mold and a wipe it down what cause this and how can I fix the problem.

By: Ben Erickson

Ben Erickson — Mon, 26 Oct 2009 16:31:49 +0000

Hi Kim,
The section under each article on our website is reserved for comments from visitors. While we can’t respond to the thousands of comments and questions we received, we do read every one. There are several more articles on double pane windows on our website that might help. Try clicking on the ones in the “Related Articles” section to the left of the article above, or use the search box on our site to find them.

By: Kim

Kim — Sat, 24 Oct 2009 20:48:46 +0000

Where are the answers to the questions above about sweating double-paned vinyl windows?

By: Lynn Reynolds

Lynn Reynolds — Mon, 26 Jan 2009 02:08:50 +0000

We have lived in our home 4 years now and never had a sweating problem until this year. We live in Star Idaho. The only thing that we did differently this year from any other year was that we closed the vents under the house in the crawl space. which is what I thought we were supposed to do in the winter to help cut down on heating costs. Could this be why we’re now getting terrible sweating windows all of a sudden? Or could we have a plugged vent somewhere?

By: loretta dean

loretta dean — Sat, 24 Jan 2009 22:14:28 +0000

I live in the Florida Keys and recently had hurricane windows instuled but they sweat alot and what can be done to stop this?

By: Bob Edgington

Bob Edgington — Thu, 15 Jan 2009 16:46:01 +0000

Dear Dan,

Today it is -10 F here in Burlington, WI. But this happens at 30 F as well.

I have double pane windows, the indoor humidy is at 39% and we have water on the windows constantly. The windows today have oblong moisture areas in the middle of each window. WE have done the technique of opening windows to combat the moisture, but see that as leaving the door open and paying to heat the outside. Not a good answer. What we have done is to place small fans to dirently ventilate the norhtern exposed windoows, which are large picture windows.

My question is what causes the oblong moisture area in a window? Is it that the low e-glass with I think is the Argon gas, has gone out or no longer works. The window are about 15 years old.

Any ideas.

Thank you for your time.

Bob Edgington

By: Charles Edwards

Charles Edwards — Thu, 15 Jan 2009 16:45:31 +0000

Are the answers to above questions available?

By: Judy Capra

Judy Capra — Sun, 21 Dec 2008 13:10:42 +0000

We have all new double pane vinyl windows. They are sweating excessively. What can we do?

By: RJ Southard

RJ Southard — Wed, 19 Nov 2008 12:45:36 +0000

I have excessive moisture condensing and freezing in my 100-year-old Kentucky home with “cheap” double-pane replacement windows. Mold was appearing on the back of some of my living room furniture. I finally placed a dehumidifier in my living room. It helps a lot, cutting down on the amount of window dripping, although I don’t like its appearance & having to run it so much (and emptying it manually).
I think the primary source of my excessive moisture is my earthen cellar and crawl space underneath. A complete, sealed, heavy plastic moisture barrier should be installed beneath my house to keep dampness from rising from the moist dirt up into my house.
I currently don’t have the funds, nor the ability, to physically access the problem area, nor the knowledge to effectively attach a total barrier. Somehow this house has already survived a century of dampness, so I keep my fingers crossed that the dehumidifier will extend its life a little longer.