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Re: No roof vent!
Posted:
Fri Jun 07, 2019 10:41 pmby Hamilton Felix
Interesting thread, even though it’s old. I’m just stating out - currently modifying an old Jayco pop up frame, preparatory to building a foamie. We live in the great Pacific NorthWET, and are debating the roof vent issue. It seems wall vents, mounted as high as possible, would be less likely to leak. Come to think of it, I have some 12v muffin fans, salvaged from old processor driven equipment. Sounds like a thrifty solution, if they are quiet enough.
Re: No roof vent!
Posted:
Fri Jun 07, 2019 11:14 pmby halfdome, Danny
A Fantastic Fan roof vent seals up without any problems.
We leave it open slightly, and off, when it's raining, not a problem.
Ours when fully open and left on and set at a temperature that keeps the fan on or off, will automatically close when rain hits the rain sensor. 
Having a roof vent is a no brainer to us.
Danny
Re: No roof vent!
Posted:
Sat Jun 08, 2019 12:25 amby Hamilton Felix
Sounds good. Is the Fantastic Fan fairly quiet? Because of my tinnitus, I like a little bit of background “white noise,” but not much.
Just looking online, it appears RV/camper ventilation is mostly roof fans or passive wall vents. I did not see many wall vent fans.
We are trying to keep it pretty low budget, but adequate ventilation is pretty important.
Re: No roof vent!
Posted:
Sat Jun 08, 2019 8:40 amby halfdome, Danny
Hamilton Felix wrote:Sounds good. Is the Fantastic Fan fairly quiet? Because of my tinnitus, I like a little bit of background “white noise,” but not much.
Just looking online, it appears RV/camper ventilation is mostly roof fans or passive wall vents. I did not see many wall vent fans.
We are trying to keep it pretty low budget, but adequate ventilation is pretty important.
Being a Cabinetmaker I've had the same condition for about 40 years but maybe not as severe as yours.
I've learned to pretty much ignore the ringing but do notice it when I think about it or it's very quiet around me.
Maybe you could go visit a teardrop gathering and ask if you could hear someone's fan operate. Ours dosen't bother me but my preference is total silence when I sleep, sometimes wearing ear plugs.
When we don't have the vent slightly open, the side walls have some moisture on them close to our heads.
Danny
Re: No roof vent!
Posted:
Sat Jun 08, 2019 9:33 amby Philip
The fantastic fan most of the time your running it on low speed. The noise is very low. On medium you can hear it. I have the same hearing problem. The thing to keep in mind with these fans. If you do not provide the same amount of opening for air flow from a window. They will vibrate and make more noise when inlet air flow is restricted.
Re: No roof vent!
Posted:
Sat Jun 08, 2019 11:49 amby Hamilton Felix
Wow, lots of people have tinnitus. I only realized in 2012 that mine is constant, though varying. I now have 45 years - I’m a Hydroelectric Operator a powerhouse on the Skagit River.
Re: No roof vent!
Posted:
Sat Jun 08, 2019 11:57 amby halfdome, Danny
I always have ear plugs in my pocket to protect my hearing be it a loud noise, lawn mower, vacuum, movie previews, or someone's screaming brat. 
When I first went into Cabinetmaking they didn't offer ear or lung protection so the doctor said to go to a welding supply to get some ear plugs, now I buy 100 pair at a time.
Danny
Re: No roof vent!
Posted:
Sat Jun 08, 2019 1:52 pmby greygoos
Re: No roof vent!
Posted:
Sat Jun 08, 2019 2:03 pmby tony.latham
Re: No roof vent!
Posted:
Sat Jun 08, 2019 3:25 pmby Hamilton Felix
Yes. It is temporary, but it is amazingly quiet when you do it.
Re: No roof vent!
Posted:
Sat Jun 08, 2019 10:13 pmby Hamilton Felix
On our original topic: I wouldn’t mind a bit of flow through ventilation while on the road, when temperatures are not extreme. But I don’t want flow through dust & dirt. This could be accomplished with some filter material, but I’m not going to lose sleep over it now.
Re: No roof vent!
Posted:
Sat Jun 08, 2019 10:35 pmby halfdome, Danny
I put a 1" louvered vent from Home Depot on each side of the galley and one behind a galley drawer to the cabin.
I cover the exterior with a clam shell vent.
Keeps us from suffocating if we neglect to open a window or roof vent and it helps with Bernoulli's Principle .
Danny
Re: No roof vent!
Posted:
Sun Jun 09, 2019 5:38 amby greygoos
tony.latham wrote:Have you tried it?
T
Yes I have tried it and it does work for me on a temporary basis. The first time I did it I thought it was so quiet I thought I had gone deaf.
Re: No roof vent!
Posted:
Tue Jun 18, 2019 11:14 amby Thomcat316
After suffering various roof leaks, I plugged the 14" hole in the roof and vented through the galley instead. It works well, though the fans are being replaced with something a little more....macho.
See "Five Year" and "Seven Year" updates on our build thread -
http://tnttt.com/viewtopic.php?f=50&t=4 ... 0#p1199701 - for details and changes, both complete and still on the wishlist.
ps - "change the tires" on the list got done, and the Nankang CX668 145R15 that we put on are very nice; needed very little balancing, and are round and true.
Re: No roof vent!
Posted:
Sun Jul 21, 2019 11:28 amby Billinthedesert
My tinnitus has been awful for decades. Will try this.
Great info on vents, gang.