For a couple of months now, I've been looking for a small (24ft) Class C. Less than 10 years old, 50K miles, clean......I have a list of questions I send to the lister and one of themis regarding leaks in the overhead cab. About 60% of the responsesstate that they had a leak at one time but is now leak-free.....I bumped into a friend yesterday who has a Class C and said that mostof his problems relate to the cab over.So.... is it a case of "if you own a class C, you will eventuallyexperience a leak ?"I understand annual maintenance and resealing etc etc but I've owned4 TTs and except for cleaning the roof, I've never had to resealany of the roofs.I'm tempted to buy a B+ because of the better "cab-over" design but then I loose the bed/storage space of a Class C.I have noticed that the newer Class C's have redesigned cab-overswith a moulded "nose" - so maybe the problems have been solved. Looking for opinions from Class C owners of older (10 years) ones - Are leaks that common ?

fitznj wrote: So.... is it a case of "if you own a class C, you will eventuallyexperience a leak ?" ?Class Cs either have leaked, will leak, or are leaking.bumpy

Bumpyroad wrote:fitznj wrote: So.... is it a case of "if you own a class C, you will eventuallyexperience a leak ?" ?Class Cs either have leaked, will leak, or are leaking.bumpyMy experience with older class A. Currently a fiberglass capped C, no leaks in first 5 years.

The cabover will leak due to the inherant flaw in design. The ceiling rafters, as they are run the wrong way. The front window floats in its 2x2 frame anf the roof seam generally runs at the curve of the cap . If one were to video this unit going down the road you would see the cab roll and flex in the wind. Any seal will work loose in time. I corrected my problem by removing the ceiling and building laminated plywood struts, like the wings of an airplane, supporting the curve of the roof and tying the front window to the framing. All seams are taped with eternabond and painted with flex seal type paint. Inspect and reseal every year. I didn't last year. I have a leak now at the gutter rail into one of my cupboards. I'll need to wait until spring to fix it.

look for a rv with a fiberglass shell ,mines a 2007 leisure travel van/ and I have no leaks. I do not have that front overhang.

“if you own a class C, you will eventually experience a leak?"Yes..same with TCs. Four TTs and never resealed your roof? Amazingly lucky is you!

Leak-free Class-C? | Good Sam Community

35 Replies

Lwiddis
Explorer II
Dec 30, 2018
“if you own a class C, you will eventually experience a leak?"

Yes..same with TCs. Four TTs and never resealed your roof? Amazingly lucky is you!
midnightsadie
Explorer II
Dec 30, 2018
look for a rv with a fiberglass shell ,mines a 2007 leisure travel van/ and I have no leaks. I do not have that front overhang.
pbitschura
Explorer
Dec 30, 2018
The cabover will leak due to the inherant flaw in design. The ceiling rafters, as they are run the wrong way. The front window floats in its 2x2 frame anf the roof seam generally runs at the curve of the cap . If one were to video this unit going down the road you would see the cab roll and flex in the wind. Any seal will work loose in time. I corrected my problem by removing the ceiling and building laminated plywood struts, like the wings of an airplane, supporting the curve of the roof and tying the front window to the framing. All seams are taped with eternabond and painted with flex seal type paint. Inspect and reseal every year. I didn't last year. I have a leak now at the gutter rail into one of my cupboards. I'll need to wait until spring to fix it.
EV2
Explorer
Dec 30, 2018
Bumpyroad wrote:
fitznj wrote:

So.... is it a case of "if you own a class C, you will eventually
experience a leak ?"
?

Class Cs either have leaked, will leak, or are leaking.
bumpy

My experience with older class A. Currently a fiberglass capped C, no leaks in first 5 years.
Bumpyroad
Explorer
Dec 30, 2018
fitznj wrote:

So.... is it a case of "if you own a class C, you will eventually
experience a leak ?"
?

Class Cs either have leaked, will leak, or are leaking.
bumpy

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Leak-free Class-C?

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