Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class B Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-24-2021, 09:22 PM   #1
Senior Member
 
Join Date: Nov 2020
Posts: 100
Do Class B MHs leak and get water damage?

I am thinking that Class B motorhomes are manufactured similar to the way that cars and trucks are built and different from the way Class Cs and As are built. Is this correct? If so I would assume that they either don't leak and don't get water damage, or at least it is mitigated. I have never had a car or truck that leaked or had water damage. If this is not the case please advise.

Thank You,


Old Guy Dave
Floridastorm is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 08-24-2021, 09:28 PM   #2
Senior Member
 
Winterbagoal's Avatar
 
Join Date: Mar 2017
Location: Sarnialabad, Peoples Republik of Canuckistan
Posts: 1,956
In general, class B van conversions can be just as prone to leaks, as any other motorhome. As soon as you start poking holes in the external surfaces of the van body/roof to add appliances or whatever, or if you cut the top off a shorter van to add a raised roof, as many older ones were constructed, you enable water intrusion.
__________________
2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 Wrangler JKU (sold @ ????) - 2016 Sunstar 26HE (sold @ 4600 miles) - 2002 Roadtrek C190P (sold @ 315,000kms)
Winterbagoal is offline   Reply With Quote
Old 08-25-2021, 06:26 AM   #3
Senior Member
 
Join Date: Mar 2004
Posts: 253
The newer models where the higher ceiling is an integral part of the body are much less prone to leaking that any RV. The seams that cause the most issues simply do not exist. That said, the two weak points that exist on all RVs are the air conditioner and the roof vent, but I have never had an issue with either of these on any of the three RVs I have owned.
__________________
Dave
2018 Era 170A
magicbus is offline   Reply With Quote
Old 08-25-2021, 06:32 AM   #4
Senior Member
 
KanzKran's Avatar


 
Join Date: Sep 2018
Posts: 1,786
Quote:
Originally Posted by magicbus View Post
That said, the two weak points that exist on all RVs are the air conditioner and the roof vent, but I have never had an issue with either of these on any of the three RVs I have owned.
All true. The Chinook I looked at but decided against had the roof vent/fan bulging out of the ceiling with some sort of foam leaking out, too. Had to be water intrusion. My Coachmen has a faint patch that almost certainly was from a leak around the Fantastic Fan also. An extra layer of goop on the roof around the fan presumably stopped it - I can see that it was an afterthought, on top of the original sealant.

Antennas, vents, anything that penetrates the steel roof is a potential leak source. But at least there is no FG cap, slideouts (M-B factory windows), or other mods to the walls other than the shore power, Truma heater vent, and outside shower door. OK, so there's a number of wall penetrations, too.
__________________
Tom & Jeri
2018 Coachmen Galleria 24T Li3
KanzKran is online now   Reply With Quote
Old 08-25-2021, 07:06 AM   #5
Junior Member
 
Join Date: Jul 2021
Posts: 9
There are a few Class B builders that try not to make swiss cheese out of a factory van so it won't leak. For example, Embassy RV uses a split AC system with no hole in the roof. I wish more builders would take a clue from them. But even those who poke some holes will have less leaks than a class A or C builder that has seams where the roof and walls meet.
Punkinhead is offline   Reply With Quote
Old 08-25-2021, 09:36 AM   #6
Senior Member
 
Ljwt330's Avatar
 
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,128
Agree with all the previous posts.


One thing to note, not all Class B are simply factory van bodies. If you look, many Class B RVs are nearly identical to a Class C in construction, save for the sleeping area over the cab. In short, they are van chassis with the area behind the cab removed and a manufactured "house" built upon it. Personally, I would call them a Class C, but they are advertised as Class B or Class B+. As such, they would be subject to all the potential leaks of a body built by a different manufacturer than the chassis.
__________________
Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
Ljwt330 is offline   Reply With Quote
Old 08-25-2021, 10:13 AM   #7
Senior Member
 
wildtoad's Avatar
 
Join Date: Jul 2010
Posts: 4,766
Quote:
Originally Posted by Ljwt330 View Post
Agree with all the previous posts.


One thing to note, not all Class B are simply factory van bodies. If you look, many Class B RVs are nearly identical to a Class C in construction, save for the sleeping area over the cab. In short, they are van chassis with the area behind the cab removed and a manufactured "house" built upon it. Personally, I would call them a Class C, but they are advertised as Class B or Class B+. As such, they would be subject to all the potential leaks of a body built by a different manufacturer than the chassis.
Yes and no If the MH is a Class B, then it is a converted van, and should have less potential for roof leaks, and have better safety features. Any time you poke a hole in a roof, sidewall, you have a leak just waiting to show up. No class Bs start with a cut away chassis/cab combo.

I do agree that anything marketed as a B+ is in fact a Class C. I once owned a 1998 Winnebago Rialta (based on a FWD Volkswagen van cab and motor) which Winnebago classified as a C, some dealers sold them as a B or C depending on what the customer was looking for. Fun fact is when shipped to Winnebago VW attached two cabs back to back. Looked quite odd. Winnebago still does not use the B+ Classification.

I forget who came out with the B+ classification first but at least they were smart. Removing the typical overhead bunk or storage area is taking something away, and a C- would have been a marketing disaster. I contend they muddled things up.

__________________
Tom Wilds

2016 Newmar Bay Star Sport 3004
2015 Jeep Wrangler 2DR 4WD Sahara, Automatic, Hard Top
wildtoad is offline   Reply With Quote
Old 08-25-2021, 11:59 AM   #8
Senior Member
 
Winterbagoal's Avatar
 
Join Date: Mar 2017
Location: Sarnialabad, Peoples Republik of Canuckistan
Posts: 1,956
Quote:
Originally Posted by wildtoad View Post
Yes and no… If the MH is a Class B, then it is a converted van, and should have less potential for roof leaks, and have better safety features. Any time you poke a hole in a roof, sidewall, you have a leak just waiting to show up. No class B’s start with a cut away chassis/cab combo.

I do agree that anything marketed as a B+ is in fact a Class C. I once owned a 1998 Winnebago Rialta (based on a FWD Volkswagen van cab and motor) which Winnebago classified as a C, some dealers sold them as a B or C depending on what the customer was looking for. Fun fact is when shipped to Winnebago VW attached two cabs back to back. Looked quite odd. Winnebago still does not use the B+ Classification.

I forget who came out with the B+ classification first but at least they were smart. Removing the typical overhead bunk or storage area is taking something away, and a C- would have been a marketing disaster. I contend they muddled things up.

Agreed. Unscrupulous salesepeople and manufacturers "created" the B+ class to try to convince some buyers that "it's not really a class C, because it hasn't got the cab over, it's really just a larger class B", because many buyers don't like the idea of owning a class C for reasons unknown.
The RVIA, which is the industry standards organization makes no mention of B+ in their research, reports, or data. They do not exist. They are a unicorn in the RV world.
Note: The use of the term "class" has changed to "type" - e.g. Type A or Type B or Type C motorhome. There is also no mention of the Super C class, either.
__________________
2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 Wrangler JKU (sold @ ????) - 2016 Sunstar 26HE (sold @ 4600 miles) - 2002 Roadtrek C190P (sold @ 315,000kms)
Winterbagoal is offline   Reply With Quote
Old 09-18-2021, 01:09 PM   #9
Junior Member
 
Winnebago Owners Club
Join Date: Mar 2021
Location: Central Pennsylvania
Posts: 19
My Sprinter van/ WinnebagoERA is a 2008 chassis. I'm the third owner and it came with a cover the seller used in winter only. No leaks or stains that I can find.
ArtDecoMan is offline   Reply With Quote
Old 09-18-2021, 09:09 PM   #10
Senior Member
 
Rocinante440's Avatar
 
Join Date: Jan 2018
Posts: 210
Any RV can leak. Class B vans built inside the original van body are generally less likely to leak than a Class C (including those alleged B+ campers), but they can leak too. Also, class B vans with cut-off roof and a fiberglass shell (and windows) on top are also more likely to leak than a Class B built inside an intact van.
Rocinante440 is offline   Reply With Quote
Old 09-19-2021, 09:16 AM   #11
Junior Member
 
Winnebago Owners Club
Join Date: Mar 2021
Location: Central Pennsylvania
Posts: 19
Absolutely agree. Mine is a real B ... factory high top, no slides, crank out windows in original body, etc. And I still woried about leaks, moisture, and mold when I bought it.
ArtDecoMan is offline   Reply With Quote
Old 09-19-2021, 09:22 AM   #12
Senior Member


 
Winnebago Owners Club
Join Date: Sep 2015
Posts: 1,221
Quote:
Originally Posted by Floridastorm View Post
I am thinking that Class B motorhomes are manufactured similar to the way that cars and trucks are built and different from the way Class Cs and As are built. Is this correct? If so I would assume that they either don't leak and don't get water damage, or at least it is mitigated. I have never had a car or truck that leaked or had water damage. If this is not the case please advise.

Thank You,


Old Guy Dave
Yes. They leak if not properly maintained.
__________________
2006 Winnebago Journey
39K
Cat C7
amosnandy is offline   Reply With Quote
Old 09-19-2021, 10:00 AM   #13
Senior Member
 
Join Date: Nov 2020
Posts: 100
Thank You All for the enlightening information

Kind of boosts my confidence in at least considering a pure Class B for less maintenance and down the road trouble.
Floridastorm is offline   Reply With Quote
Old 09-19-2021, 11:08 AM   #14
Junior Member
 
Winnebago Owners Club
Join Date: Mar 2021
Location: Central Pennsylvania
Posts: 19
That was my thinking based on a friend with two class As currently, and another who owned a C and an A years ago. I live in a very wet climate area in central Pennsylvania and everything molds around here.
Mostly depends on whether you can tolerate the class B compromises. Not for everyone, but works for us. Many (s)miles to you.
ArtDecoMan is offline   Reply With Quote
Reply

Tags
class b, leak, water, water damage



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Which Class A MHs handle the best - and why? CountryB Class A Motorhome Discussions 60 11-10-2019 04:41 PM
Do all brands of Class A MHs have quality control issues? Whlsdn Class A Motorhome Discussions 52 04-15-2018 10:46 PM
Are there any 6 cylinder diesel, 6 speed allison, class A MHs from the 90s? dix39 Class A Motorhome Discussions 35 02-27-2016 06:03 PM
How do you rank Class A MHs Just For Fun Class A Motorhome Discussions 34 05-24-2013 06:53 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 06:17 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.