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05-05-2016, 02:37 PM
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#1
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Senior Member
Join Date: Nov 2015
Location: Pacific Northwest
Posts: 290
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Foggy windows in the morning
Maybe it is just more of a problem because of our cooler and sometimes wetter springs up here near Seattle, but thought I would check with others. If I don't leave one of the roof vents open and one of the fantastic fans running at night when we go to bed, most of the windows in the coach will be fogged up when I raise the night shades in the morning. I hate to waste the extra heat out of the roof vent, but better that than the fogged up windows that take forever to clear up in the morning. Anyone else have this issue? We have 2 adults and 2 kids sleeping in the Berk when we have it out, so that might also attribute to it a bit.
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Glenn and Darcy
2018 Berkshire 39A
2016 Jeep Wrangler Unlimited/Blackbear (toad)
Pacific Northwest
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05-05-2016, 03:10 PM
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#2
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Senior Member
Join Date: Mar 2015
Location: Mishawaka
Posts: 576
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Glenn if the nights are cool and night shades down our windows fog up as well. Raising the shades and turning on the front windshield fans generally clears them up in a little while.
Wayne
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Wayne
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05-05-2016, 03:16 PM
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#3
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Senior Member
Join Date: Nov 2013
Location: Denver, CO
Posts: 154
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Cover the insides with something like RainX anti-fog. Single pane windows allow that condensation transfer. We always have this problem.
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TV: 2018 Ford F-350 Powerstroke
Trailer: 2013 Palomino Puma 27SBU
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05-05-2016, 03:54 PM
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#4
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Senior Member
Join Date: Nov 2013
Location: Whereever our Berkshire is Parked!
Posts: 7,082
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Quote:
Originally Posted by bitNine
Cover the insides with something like RainX anti-fog. Single pane windows allow that condensation transfer. We always have this problem.
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X2 RainX is DA BOMB! -worth your time to put it on all of your coach's windows!
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Bob & Anne-Marie [BamaBob & 6 Actual]
| 2017 Berkshire XLT 43A with Ultrasteer Tag | Blue Ox Avail + KarGard II |
| SMI AF-1 Air Brake | 2016 Jeep Cherokee Overland TOAD | Pedego Bikes |
Nights Camped: 2013 - 24 2014 - 42 2015 - 56 Jul 2016 - Fulltime
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05-06-2016, 01:32 PM
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#5
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RailwayRog
Join Date: Apr 2015
Posts: 72
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If the Rain-X prevents condensation on the interior windows then where does all that moisture go?
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05-06-2016, 01:52 PM
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#6
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Who Dares, Wins
Join Date: May 2012
Location: Chester County, PA
Posts: 7,063
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Into your walls and everything this else that can absorb it..
Sent from my SAMSUNG-SM-G870A using Tapatalk
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Pat, Jen, Heather & Sapphire, the head mouser.
2015 Chevy HD D-Max
2022 Impression 315MB
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05-06-2016, 02:29 PM
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#7
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Senior Member
Join Date: Nov 2013
Location: Denver, CO
Posts: 154
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Quote:
Originally Posted by RailwayRog
If the Rain-X prevents condensation on the interior windows then where does all that moisture go?
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It doesn't "go" anywhere, nor does it prevent condensation. An anti-fog treatment simply alters the surface of the glass, making it hydrophilic (opposite of hydrophobic), meaning it acts like a sponge and loves water. A hydrophobic (literally a phobia of water) surface causes water to bead up, meaning a water droplet looks more spherical, making it easy for the eye to see the droplet due to the way it refracts light from its surroundings. Fog is made up of a large number of these tiny little droplets, and because of their shape, it makes seeing past them nearly impossible. Hydrophilic surfaces cause a droplet of water to flatten, more like a contact lens sitting on a flat surface. This means you can see through it, and it refracts light differently.
The water still condenses on your window, and therefore it will still be wet, but you can see through the droplets because of their shape.
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TV: 2018 Ford F-350 Powerstroke
Trailer: 2013 Palomino Puma 27SBU
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05-06-2016, 03:50 PM
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#8
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Senior Member
Join Date: Nov 2015
Location: Pacific Northwest
Posts: 290
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Quote:
Originally Posted by bitNine
It doesn't "go" anywhere, nor does it prevent condensation. An anti-fog treatment simply alters the surface of the glass, making it hydrophilic (opposite of hydrophobic), meaning it acts like a sponge and loves water. A hydrophobic (literally a phobia of water) surface causes water to bead up, meaning a water droplet looks more spherical, making it easy for the eye to see the droplet due to the way it refracts light from its surroundings. Fog is made up of a large number of these tiny little droplets, and because of their shape, it makes seeing past them nearly impossible. Hydrophilic surfaces cause a droplet of water to flatten, more like a contact lens sitting on a flat surface. This means you can see through it, and it refracts light differently.
The water still condenses on your window, and therefore it will still be wet, but you can see through the droplets because of their shape.
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Wow, great explanation. Thanks.
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Glenn and Darcy
2018 Berkshire 39A
2016 Jeep Wrangler Unlimited/Blackbear (toad)
Pacific Northwest
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05-06-2016, 04:00 PM
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#9
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Site Team
Join Date: Oct 2014
Posts: 15,294
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If your windows are fogging up ( water condensation) then the same thing will happen on other cool surfaces throughout your RV. This can cause some minor water damage if serious enough. Your solution of leaving a vent open is a good option. You can try opening an un-powered vent and crack a window in the other end of the unit to get some cross ventilation. As long as you are inside and breathing, and it is cold outside you will have the possibility of condensation on cool surfaces.
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2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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05-06-2016, 05:02 PM
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#10
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Senior Member
Join Date: Feb 2015
Posts: 741
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Look on the bright side. Using micro fiber chamois it's the best window cleaner going. Not to mention absorbing all the condensate that collects at the bottom of the window.
2015 XL 40QL
Sent from my iPhone using Forest River Forums
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05-06-2016, 10:08 PM
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#11
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Senior Member
Join Date: Nov 2013
Location: Denver, CO
Posts: 154
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Another way to get rid of condensation is with AC or heat. Though I think the last thing I want to do is run the AC on a cold morning, lol.
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TV: 2018 Ford F-350 Powerstroke
Trailer: 2013 Palomino Puma 27SBU
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05-07-2016, 03:09 PM
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#12
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Senior Member
Join Date: Aug 2015
Location: Pearl River, Louisiana
Posts: 842
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we have that problem in our Berkshire too. we put the windshield defroster on, but we usually have to keep it on to stop it from fogging back up while driving. I have heard that shaving cream on the windshield helps but I haven't tried it yet. Other than giving the advice "always RV some place warm" I can't offer any other help..... sorry.
Good Luck,
Karen
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Karen and Rick
2020 Forester 2251SLE
Previous: 2018 Berkshire XL 40C
2011 Honda CR-V toad
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05-07-2016, 05:01 PM
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#13
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Senior Member
Join Date: Mar 2014
Posts: 277
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I carry an extra 10,000 btu Ac for my neck of the woods (Arizona) but it also has just dehumidifier feature. Store it behind divers seat.
Sent from my iPhone using Forest River Forums
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Jc
2014 400BH-60
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05-12-2016, 07:44 AM
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#14
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Senior Member
Join Date: Nov 2013
Location: Whereever our Berkshire is Parked!
Posts: 7,082
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Quote:
Originally Posted by Paulie Boy
Look on the bright side. Using micro fiber chamois it's the best window cleaner going. Not to mention absorbing all the condensate that collects at the bottom of the window.
2015 XL 40QL
Sent from my iPhone using Forest River Forums
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Can't agree More Paul! In fact we are going to go completely Microfiber and ditch all our cotton towels and go to these:
http://www.amazon.com/Fit-Spirit%C2%AE-Absorbent-Microfiber-Skidless/dp/B016QS7BQU?ie=UTF8&psc=1&redirect=true&ref_=ox_sc_ act_title_1&smid=A2WRS4X4C0GMOQ
I bought one set as a "test" Anne-Marie was VERY skeptical & had bad experience with the texture of other microfiber towels. She now uses the microfiber towel for her daily shower and a 20x40 one for her hair. She loves the fact that the microfiber dries completely in @ 4 hours.
Quote:
Originally Posted by RKNOLA
we have that problem in our Berkshire too. we put the windshield defroster on, but we usually have to keep it on to stop it from fogging back up while driving. I have heard that shaving cream on the windshield helps but I haven't tried it yet. Other than giving the advice "always RV some place warm" I can't offer any other help..... sorry.
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LOL Karen! We call that the 85/50 rule: When we retire if the temperature goes above 85, we move - below 50, we move
One thing we found really worked here in the south in our old 5er was this:
Amazon.com: New and Improved Eva-dry E-500 Renewable Mini Dehumidifier: Home & Kitchen
They really work! When they absorb all the humidity you just take 'em outside, plug them in to a power-strip and that dries them out in @ 2 hours--ready to use again. They are rated to last up to 10 years and are a HECK of a lot better than using damp-rid desiccant, which can spill and makes for a NASTY clean-up -- don't ask me how I know this
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Bob & Anne-Marie [BamaBob & 6 Actual]
| 2017 Berkshire XLT 43A with Ultrasteer Tag | Blue Ox Avail + KarGard II |
| SMI AF-1 Air Brake | 2016 Jeep Cherokee Overland TOAD | Pedego Bikes |
Nights Camped: 2013 - 24 2014 - 42 2015 - 56 Jul 2016 - Fulltime
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05-12-2016, 05:51 PM
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#15
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Senior Member
Join Date: Aug 2015
Location: Pearl River, Louisiana
Posts: 842
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quote: Can't agree More Paul! In fact we are going to go completely Microfiber and ditch all our cotton towels and go to these:
Good to hear BamaBob! Now I don't have to worry if you will like your Goshen goodie bag!!
Karen
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Karen and Rick
2020 Forester 2251SLE
Previous: 2018 Berkshire XL 40C
2011 Honda CR-V toad
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