I recently read that somebody installed 2 mushroom attic vents on his fiver for moisture and heat relief.I was thinking....has anyone else done this to their rig. I don't even know if my fiver has an attic. Sent a contact question to Jayco (maker of my rig) to confirm one way or other.Is this something we all should be concerned with? Adequate venting is critical for the trailer to function like a home....yes/no or is this just another dumb question?Thanks for the feedback.dt

Sounds like something in a trailer park that hasn't moved for 30 years

My fiver is a 2002. The individual who I refer to travels around the South and SW. His fiver is newer than mine. The manufacturer of his trailer told him where to install the attic venting.I think it's worth exploring.Some of us can and some of us may not be able to do it or if it's really worth it.

Remember, when you install any type of this type ventilation, YOU MUST have a way to input fresh air. Houses have vents on the underside of the eaves to allow fresh air to enter and then exit. You will have to figure out a way to allow fresh air to get into the RV before the roof top vent will work. There is NO attic in a RV. There may be a space depending on the design of the roof itself. Jayco's have Styrofoam insulation in the roof and NO free space. I cannot think of any RV that will have any type of free space due to the lack of thickness in the roof. ANY space will be filled with Pink insulation or Styrofoam. If there IS space, then you will have NO insulation keeping the sun's heat from going right thru. 5th wheels are not built any different from all other RV's. Doug

If you have free space between the ceiling and roof, it will most likely help with the heat in the Summer. My ceiling cavity is packed fully with spun fiberglass and foam insulation.

My 2012 5'er came with 2 attic vents factory installed.Not sure how well they are working but it sounds like a good idea

attic vents? | Good Sam Community

18 Replies

Huntindog
Explorer
Sep 15, 2015
Old-Biscuit wrote:
dougrainer wrote:
Old-Biscuit wrote:
My FW has two (2) 'attic vents' factory.

Yes they are roof vents but only go into open space of roof that is like a small attic due to roof truss structure.
One piece rubber roof material, 5/16" roof decking, Radiant Barrier then 4 1/2" fiberglass insulation which is laid down over top of 5" wood roof trusses

NuWa statement:
Our positive vent system in the attic allows the fifth wheel to breathe and reduces considerably the condensation that the user must deal with when using the product extended or full time in cold climates.

YES ....attic vents

NUWA is in a class of their own. NOT even in the top 99% of roof builds on RV's. The OP is referring to TRUE attic vents, NOT roof top 14 X 14 Vents that come standard in all RV's. Your post points to problems with these type forums. YOUR specific RV (probably the ONLY brand) that has a true Attic space vent system and you then post ,Yes, there are attic vents. Just because YOUR specific RV has that system, does not mean the other 99 44/100% of the RV's have such a feature or can be adapted. There is always the anomaly in all things in life, but do not take it to mean others have your type system. I have seen a few over the years from the OEM, but without a TRUE air flow(due to insulation), the system does not really function as stated. Doug

From other posters seems Cedar Creek, Cardinal, Open Range and probably others have 'attic vents'.
Bit more prevalent than just NuWa
You can add my Sabre to the list.

Not a direct comparison, as My Sabre is built quite na bit differently than my previous TTs, but it does seem to help
dtappy3353
Explorer
Sep 15, 2015
Oh, ah, ya and the vents are made by Keystone.

Easily found on Google.
dtappy3353
Explorer
Sep 15, 2015
yes they do.
mlts22
Explorer II
Sep 15, 2015
I hope the vents have some screening, as an attic like that sounds like a haven for mice, rats, squirrels, or other varmints.
Old-Biscuit
Explorer III
Sep 15, 2015
dougrainer wrote:
Old-Biscuit wrote:
My FW has two (2) 'attic vents' factory.

Yes they are roof vents but only go into open space of roof that is like a small attic due to roof truss structure.
One piece rubber roof material, 5/16" roof decking, Radiant Barrier then 4 1/2" fiberglass insulation which is laid down over top of 5" wood roof trusses

NuWa statement:
Our positive vent system in the attic allows the fifth wheel to breathe and reduces considerably the condensation that the user must deal with when using the product extended or full time in cold climates.

YES ....attic vents

NUWA is in a class of their own. NOT even in the top 99% of roof builds on RV's. The OP is referring to TRUE attic vents, NOT roof top 14 X 14 Vents that come standard in all RV's. Your post points to problems with these type forums. YOUR specific RV (probably the ONLY brand) that has a true Attic space vent system and you then post ,Yes, there are attic vents. Just because YOUR specific RV has that system, does not mean the other 99 44/100% of the RV's have such a feature or can be adapted. There is always the anomaly in all things in life, but do not take it to mean others have your type system. I have seen a few over the years from the OEM, but without a TRUE air flow(due to insulation), the system does not really function as stated. Doug

From other posters seems Cedar Creek, Cardinal, Open Range and probably others have 'attic vents'.
Bit more prevalent than just NuWa
dtappy3353
Explorer
Sep 15, 2015
Thanks everyone for the feedback.

I did hear from Jayco this a.m. They wanted the serial number on rig which I forgot to send em to begin with.

It appears Jayco intends to provide me with some information on this topic.

Stay tuned!
fj12ryder
Explorer III
Sep 15, 2015
Our 2010 Fuzion toyhauler has them, in fact I had one heck of a time finding a replacement when one came off. Whether they do anything useful I couldn't say.
Roger10378
Explorer II
Sep 15, 2015
The attic vents on my 2005 Cardinal look just like the plumbing vents. The only difference is there is no pipe sticking up into them. There is one near the front center and one near the back center. I can't tell how much they help but I have never had condensation problems. If there are more vents on top of your trailer than you have waste water tanks you probably have a vented attic.
campinghut
Explorer
Sep 15, 2015
Our Cedar Creek has 2 attic vents (6" round) in the roof, as to weather they do any good I have no proof. I did check one day (because I was up on the roof and curious) they do seem to let moisture out.
dougrainer
Nomad
Sep 15, 2015
Old-Biscuit wrote:
My FW has two (2) 'attic vents' factory.

Yes they are roof vents but only go into open space of roof that is like a small attic due to roof truss structure.
One piece rubber roof material, 5/16" roof decking, Radiant Barrier then 4 1/2" fiberglass insulation which is laid down over top of 5" wood roof trusses

NuWa statement:
Our positive vent system in the attic allows the fifth wheel to breathe and reduces considerably the condensation that the user must deal with when using the product extended or full time in cold climates.

YES ....attic vents

NUWA is in a class of their own. NOT even in the top 99% of roof builds on RV's. The OP is referring to TRUE attic vents, NOT roof top 14 X 14 Vents that come standard in all RV's. Your post points to problems with these type forums. YOUR specific RV (probably the ONLY brand) that has a true Attic space vent system and you then post ,Yes, there are attic vents. Just because YOUR specific RV has that system, does not mean the other 99 44/100% of the RV's have such a feature or can be adapted. There is always the anomaly in all things in life, but do not take it to mean others have your type system. I have seen a few over the years from the OEM, but without a TRUE air flow(due to insulation), the system does not really function as stated. Doug

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attic vents?

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