Fogged up window repair

wildmanbaker wrote:

Kidoo wrote:

fcooper wrote:

Kidoo wrote:
Ok, I found a web site on the subject but this is about home window. I want to do this on my dual pane on the MH. I do not want to change the windows. http://condensation2clear.com/?gclid=CNu6zaiuwMECFQMT7Aoda2gAQw. I know a guy that does it in my home town and it works, even at minus 30 in winter.

After drilling a hole, they install a one way valve so air will escape and not go back in, creating back the thermal barrier.

RV windows are tempered, check with RVfogdr.com. This is why the guy I called says he cannot drill through, but he says it will work if I drill in between, problem is I cannot install the valve and I will loose the thermal barrier. But this would be the least of the problem.

I have a friend that drilled two holes in the sealant between the panes (sliding window), pumped in dry air, cleared the condensation, and then sealed the holes. It was fogged again in 2 weeks due to the failed seal. Your mileage may vary. I hope it works for you.

Fred

Maybe he would have been better to let the hole open. The guys that do it on home install a one way valve, one way out. Once the sun heat the window, air and humidity goes out but do not come back in.

I will check with the guy to see if he can give me a few valve to install between the two windows.

I tried this, and even flushed between the panes with an ammonia solution, followed by 90 proof rubbing alcohol, then blew fairly dry air in one hole as it vented out the other. Still fogged-up within 2 months. The spacer between the panes is also the desiccant. I have a feeling that when they were building the windows, they never sealed the unused spacer against moisture, and as a result the spacer was probably used-up before being installed.