Windscreen frozen on the inside.

[meza]

No that’s not correct.

Running with air con on will dry out the air, and remove moisture.



Exactly what he said!

Yeah I see what you mean, I missed the “if not” in whodat’s post. Ooops. Sorry.

However, not running with aircon on doesn’t “add some extra moisture”, it just fails to remove moisture that is already there. Nitpicking

 

[Lubrown]

I did read somewhere that an incorrectly fitted pollen filter could cause the issue. I have no idea about this, how do you know and can you assume if it’s being serviced that this is sorted?

The pollen filter in my Golf was simply taken out and flipped over as part of the main dealer service. No lie. That was the final straw for me when I found it.
I now replace them in both the Golf and Transporter myself and I get the decent ones.

To be honest I must have been driving round with it the wrong way for quite a while, as it’s not something you normally look at, but I never had massive condensation issues.

I do use aircon most the time and it’s also good when you’re driving along to open the front windows of a vehicle for a few minutes to fully exchange the cabin air. Gets rid of moisture - assuming it’s a dry day of course

 

[MO05RKY]

Any vehicle can do it if the conditions are right. It isn’t helped that the T6 holds a big volume of air.

Fair enough. It's just never happened to my van before. Maybe it's the coldest its seen.

 

[MO05RKY]

I fitted the wind deflectors a couple of months ago with the metal clips,they where a bit of a faff to stop the windows closing properly but ok now.Not frozen inside though.Is there any damp getting in anywhere else?

No damp no. Might to be the extreme cold we've had! It's never happened before!

 

[MO05RKY]

I would stick a couple of condensation traps in as I do in my caravan might help!I use the pads also they can be dried out on a radiator or microwave and change colour when need recharging.BEWARE though if you have them by the blower to clear the screen as when I had them there they gave off a dust that my other half was allergic to and face swelled up like you wouldn’t believe :-(

Il invest in a couple of them nightmare, il make sure not to do that!

 

[MO05RKY]

Sleeping in the van?

You breath out moisture which will stick to the glass, and freeze if it cold enough.

A thermal screen cover can help.

Plus ventilation.

....

No sleeping in it. I might get a screen cover.

 

[MO05RKY]

Also worth a think about what inside the van is potentially harbouring humid air during the day that releases at night when the temperature drops - eg do you have any cushions, duvalay, dog blanket etc.

I have got some duvays and a dog bed!

 

[MO05RKY]

Ya I used to get this in my older t5 as sits on the drive way all week in cold weather and then sunny during the day would often create moisture on the windscreen.. bought these and solved the issue.. either leave on the dash or in the door cards! When they go pig think you microwave them to dry

Amazon

View attachment 270539

Il get some of these, deffo. Thanks.

 

[MO05RKY]

In addition to what the others have said, what sort of condition is your pollen filter in?

No idea!

 

[MO05RKY]

Also to add - do you drive with the air con switched on?
If not, that will add to some extra moisture in the air on the inside.

No i don't. Il sort in this cold.

 

[Lubrown]

No i don't. Il sort in this cold.

And avoid the recirculating button unless you’re driving past a fire or something.
Fresh air coming in, even for times without aircon, is better than recirculating the air (and moisture) already in the van.
For some reason my brother in law keeps recirc on in his car and it never de-mists. Ever.

 

[Kind of Blue]

Measurement of water vapour in the air is usually expressed in terms of Relative Humidity as a percentage %. Warm or hot air is able to contain a higher percentage of water before saturation and airborne condensation than the air containing exactly the same amount of water as cold air. On cooling the air at some point will become to form airborne condensation at the Saturation Point.

The microcosm close to to the surface of a cooler outside window may force a change in the micro climate very close to that window resulting in 100% relative humidity very locally to the window surface causing it to fog. To reduce this very local change one could heat the window or attempt to reduce the relative humidity of the room or inside of a T6 for instance. We could insulate the window or heat it. For speed of use when driving, heating the window with electric elements or forced hot or warm air. This raises the extremely close microcosm air temperature and reducing the local Relative Humidity and so preventing condensation. This may be not possible over night due to practicality or cost. Covering the window on its exterior side may be all that is needed to prevent saturation and then condensation.

Air condition systems in vehicles also reduce the Relative Humidity by drying out he air to some extent. A trick with air condition systems in vehicles is to turn the heat right down as far as it will go assuming the air-conditioner is on at the end of a drive or when putting the vehicle to bed for the last few minutes. Enough time for it to work its magic. This will even further reduce the Relative Humidity in the vehicle. This will often prevent fogging or condensation enough to prevent condensation forming on the inside window. Of course in exceptionally cold time covering the window as well may be better because it will also prevent ice from forming on the outside of the window over night.

One of the major worries concerning people on the limit or below the poverty line is high levels of relative humidity. One because the saturation point of the air will be closer making it possible for droplets to form in the air but mostly nearly all smooth colder surfaces will tend to form condensation wall and windows and because of living environments Mold will eventually form which can be very dangerous for lungs and general health.