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Rotary roof vent

Posted: 19 Sep 2010, 13:09
by NicBeeee
Hi
Has anybody tried a rotary roof vent to deal with condensation probs, thinking of buying one but I dont really want to be making holes in vain. Any advice greatly recieved.

Cheers
Nic

Re: Rotary roof vent

Posted: 19 Sep 2010, 18:36
by kevtherev
I'm wondering why you have condensation problems in a draughty old van.

What exactly is the issue?

Re: Rotary roof vent

Posted: 19 Sep 2010, 19:22
by jamesc76
you mean like the ones on trasnshites and such that spin like crazy as you drive ? if so they would be a reeeet pain and noisy in strong winds, there are some solar powered fan ones that work well!

Re: Rotary roof vent

Posted: 20 Sep 2010, 07:00
by NicBeeee
kevtherev wrote:I'm wondering why you have condensation problems in a draughty old van.

What exactly is the issue?


I am getting a lot of condensation on the roof and side panels behind the lining material. Although MDF has been usee for the lining base and is far from breathable. I am going the other route and adding extra insulation and putting in a vapour barrier behind the boarding. The idea of the rotary air vent is to help with cooking moisture etc.

Re: Rotary roof vent

Posted: 20 Sep 2010, 07:03
by NicBeeee
jamesc76 wrote:you mean like the ones on trasnshites and such that spin like crazy as you drive ? if so they would be a reeeet pain and noisy in strong winds, there are some solar powered fan ones that work well!


Yep there the ones. I am told that you can lock the better ones off when you need to and can control the air flow with an internal shutter. Do the solar vents work as well in the winter as the summer as this is when I will need it the most.

Re: Rotary roof vent

Posted: 20 Sep 2010, 09:45
by jamesc76
I had one and worked fine, biggest problem is people insulate there vans so well and there is no were near enough air flow to combat the condensation on glass etc, best to get solar roof vent and some metal vents that fit to the front driver and passenger windows!

Re: Rotary roof vent

Posted: 20 Sep 2010, 09:46
by kevtherev
NicBeeee wrote:
kevtherev wrote:I'm wondering why you have condensation problems in a draughty old van.

What exactly is the issue?


I am getting a lot of condensation on the roof and side panels behind the lining material. .

Is this a high top roof?

Re: Rotary roof vent

Posted: 20 Sep 2010, 10:19
by HarryMann
Can imagine the problem well.. makes sense to increase roof height ventilation if easy enough to do

What is a solar vent ? More info please.

Re: Rotary roof vent

Posted: 20 Sep 2010, 10:24
by R0B

Re: Rotary roof vent

Posted: 20 Sep 2010, 18:36
by NicBeeee
kevtherev wrote:
NicBeeee wrote:
kevtherev wrote:I'm wondering why you have condensation problems in a draughty old van.

What exactly is the issue?


I am getting a lot of condensation on the roof and side panels behind the lining material. .

Is this a high top roof?


No, its just a standard tin top

Re: Rotary roof vent

Posted: 20 Sep 2010, 18:39
by kevtherev
ah ha...
you need to contact VWCamperfan he had this very same problem, and I believe solved it.