Do Class C Motorhomes leak?

One of the benefits of owning a Class C motorhome is the convenient access to the bathroom, kitchen or bedroom for the co-pilot. 

A distinguishing characteristic is the cab-over nose located above the driver and passenger seating area and used as a loft or entertainment counsel.



Unless you have a one-piece fibreglass nose, many units using side and top joint and trim construction suffer from damaging rainwater leaks. Aside from the obvious expansion and contraction sealants must endure, front nose caps must sustain high headwinds from going down the highways. The highway speeds put added stress on the sealed areas. A hairline crack is all it takes to cause thousands of dollars in water damage repairs.

How do you stay ahead of the water damage issues in this area? Unfortunately, just looking at the caulking is not enough. You need to know what to look for, where to look and how to challenge them well enough to expose the hidden issues. 

So you might be thinking, "I bet this is where RV ProSeal promotes its pressure testing as the answer, right?".  NO, we don't. If the individual is untrained to know how to challenge each area and know what to look for, the pressurizing and added bubbles alone may not find the failure.

We want folks to understand they should not feel bad about missing a problem area despite all your efforts. We have come across people with 30-year experience in automotive bodywork who felt defeated. 

All the chat forums and Facebook groups are full of wrong, incomplete or inconsistent advice that tends to blur the good from the bad, often making this task sound so easy that anyone can do it. Often improper DIY repairs make for a more expensive repair later. Don't get caught holding the large water damage repair bill or stuck with a unit that smells bad or health issues from mould or a unit you can't sell. Don't chance it when the lower cost for proper, preventative maintenance focused on exterior leak protection is your real peace of mind and best protection.

RV Proseal

We are the first Canadian mobile RV service company specializing and pioneering solutions to solving RV leaks for RV owners and RV service dealers alike. We are your RV exterior leak prevention, testing, report generation, and repair specialist. We can reveal & locate what you can't see! Plus, we come to you.