Sponsored by Winnebago Industries

Author Topic: Winnebago class c body drain holes  (Read 300 times)

mabgenre

  • ---
  • Posts: 18
  • 2006 Winnebago Aspect 23
Winnebago class c body drain holes
« on: July 08, 2018, 08:20:17 PM »
Do any of you know if there are drain holes to remove rainwater from the body of our class c rv's? I have observed water seeping into the coach from behind a srew that attaches the firberglass nose of the coach to the cab. I wonder if there are some exterior drain holes that may be clogged and causing water to back up in thst area after a beavy rainfall.

John Canfield

  • Forum Staff
  • ---
  • *
  • Posts: 12595
    • Jane and John's Internet Home
Re: Winnebago class c body drain holes
« Reply #1 on: July 09, 2018, 07:11:37 AM »
All roof penetrations (screws, etc) should have a goop of self-leveling sealant covering them (like Dicor.) Have you been on the roof for an inspection?
--John
2005 Horizon 40AD, 2006 Jeep Rubicon Unlimited
Our Horizon projects
Our weather

mabgenre

  • ---
  • Posts: 18
  • 2006 Winnebago Aspect 23
Re: Winnebago class c body drain holes
« Reply #2 on: July 09, 2018, 04:34:05 PM »
Ha, been all over that roof! I know that I  still need to find all of the leaks but right now I'm just wondering if there are also drain holes that I  need to clear. The screw head from which water seeps behind and into to the coach is inside, where the fiberglass coach is secured directly to the frame of the cab. There are a half dozen or so of these screws that I have access to-- behind the passenger seat. I got to them by removing the upholstered piece that covers the transition of coach to cab.  There are about a half dozen or so of these screws going down to the floor.  Two of these screws (the ones water seeps in from behind) don't seem to tighten but do not appear to be backing out either. There is not and appears to never have been goop or Dicor or anything on the screws or in the holes. I could cover them with goop but the water would just seek another outlet ...probably into the coach.  There is a heavy black weatherstrip of some kind used at the edge of the fiberglass but that does not appear to be leaking through into the coach. Probably not explaining well. I'll add pics later. Heavy rain again now.

John Canfield

  • Forum Staff
  • ---
  • *
  • Posts: 12595
    • Jane and John's Internet Home
Re: Winnebago class c body drain holes
« Reply #3 on: July 10, 2018, 07:13:01 AM »
One trick to find leaks is to pressurize the interior with a large box fan - fit it in a window or a sealed off door and turn it on. Spray a dishwashing soap - water solution and look for the soap bubbles. Leaking RVs are a lot like boats, a leak can begin five or ten feet away before it finds its way out in the cabin.
--John
2005 Horizon 40AD, 2006 Jeep Rubicon Unlimited
Our Horizon projects
Our weather