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T O P I C     R E V I E W
Snaggy
Member # 123
 - posted November 25, 2016 16:03
My house windows are old single pane windows, and they fog up when it's "cold" outside. This leads to annonyment and mold.

I've been using a computer fan to dry them out. If I leave it on, the window doesn't fog, or at least, the water droplets evaporate off the window and it stays clear.

Q. Is this just making *more* water vapour in my house, as water constantly condenses on the glass and fan air takes it away? In other words, does the layer of condensed water on the window help insulate it, so less water condenses on it?

Yes I know, I need a dehumidifier!
 
The Famous Druid
Member # 1769
 - posted November 25, 2016 19:20
It won't add moisture, the condensation is just moisture in your inside air turning liquid when it hits a cold surface.

As an alternative to a fan, you'll sacrifice your view, but this might help and it'll cut your heating bill in those long Canadian winters.
 
Snaggy
Member # 123
 - posted November 25, 2016 21:58
Oh cool, I'll have to try that bubble wrap trick! Thanks Druid! [Applause]
 
TheMoMan
Member # 1659
 - posted November 26, 2016 10:37
Snaggy there are kits of heat shrink vinyl that staple to the outside window trim and you make it tight with a hair dryer.
 
Snaggy
Member # 123
 - posted November 26, 2016 11:15
MoMan, yep I've seen and used those over the years, but never liked them. Back in Ontario they wouldn't last long before being shredded, but hmmm, maybe here where it's milder, they would.

Perhaps I'll try one window with that, one with the bubble wrap. [Geek]
 
Snaggy
Member # 123
 - posted November 26, 2016 14:43
Just call me the Boy in the Bubbles

 -
 
TheMoMan
Member # 1659
 - posted November 27, 2016 11:33
That may explain why I have seen them installed inside the house.
 
Snaggy
Member # 123
 - posted November 27, 2016 12:42
Window update: Huge difference with the bubble wrap, the room is warmer, and no condensation on the outside of bubble wrap. Next to the glass there is some water, especially where the wrap separated from the glass, but still magnitudes less than without bubble wrap. [thumbsup]

Still worried about mold though, I suspect it will be a bloom'in mess at some point.
 
The Famous Druid
Member # 1769
 - posted November 27, 2016 19:35
Keep me posted, I only saw that suggestion recently, and haven't got around to trying it m'self.
We don't have a condensation problem, but there's a couple of spots in Casa del Druid that are uncomfortably close to slabs of cold glass in Winter.
 
The Famous Druid
Member # 1769
 - posted November 28, 2016 02:39
I'm wondering if a little windex on the glass before you apply the bubble wrap would act as a mold retardant.
 
Snaggy
Member # 123
 - posted November 28, 2016 11:20
Heh, I'm using mold retardant. :-D

 -
 
TheMoMan
Member # 1659
 - posted November 28, 2016 12:54
Just what you need "Retarded Mold"
 
Snaggy
Member # 123
 - posted November 28, 2016 17:13
I'm on a bubble roll. This time, testing two different bubble sizes.

 -
 
TheMoMan
Member # 1659
 - posted November 28, 2016 19:39
You do realize that you have installed semi-opaque windows and you could walk around in your ....
 
TheMoMan
Member # 1659
 - posted November 29, 2016 14:31
Snaggy a quick word of caution, flue gases from a furnace or space contain a lot of water vapor. Are you sure that your heating apparatus is venting correctly? The same question if using a gas water heater.

I do recommend a Carbon Dioxide Detector for you and Nitros safety.
 
Snaggy
Member # 123
 - posted November 29, 2016 17:14
Thanks MoMan for thinking of that. Luckily we don't burn any fuels in our furnace, as we have a heat pump. We do burn a lot of wood though, but I would think that tends to dry things out inside. (wood is stored outside)

So far, loving the bubble lifestyle! Thanks again Druid for that tip! [Applause]
 
Snaggy
Member # 123
 - posted December 09, 2016 13:39
Just an update on my bubble wrap situation...

I love this! It's made a huge difference in water coming down on my sills and the rooms feel warmer. There's a little bit of water on the sills, but nothing like it used to be, and the mould seems to be under control so far. Today it's cold and there's even snow outside, but moisture is under control!

I do have to check it now and then to be sure the bubble wrap is against the window, and occasionally need to spray some areas every now and then so that the wrap sticks. Bigger bubble wrap seems to work a little better than the small stuff.

Thanks so much for that link Druid! [Applause]

http://www.builditsolar.com/Projects/Conservation/bubblewrap.htm
 
TheMoMan
Member # 1659
 - posted December 11, 2016 06:42
Snaggy if you should happen to have one of those in/out door thermometers, could you put the probe next to the glass and the inside unit tight against the bubble wrap. I am curious about the delta "T" that you are getting.
 
Snaggy
Member # 123
 - posted December 11, 2016 13:50
MoMan: I don't have one of those, but the guy at Make it Solar did these calculations…

http://www.builditsolar.com/Projects/Conservation/bubblewrapperformance.htm

Pretty much doubles the R value of the window.
 
TheMoMan
Member # 1659
 - posted December 11, 2016 14:07
Thanks for the info.
 
The Famous Druid
Member # 1769
 - posted May 26, 2017 07:20
Snaggy - it's getting on for what we here in paradise laughingly call 'Winter' and I thought I might do the bubble wrap thing.

Any updates on your comments above now that you've had a chance to see how it goes through an entire real Winter?
 




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