RV.Net Open Roads Forum: Class A Motorhomes: Cracks in fiberglass roof
RV Community | RV News & Reviews | RV Sales | Plan a Trip | RV Clubs & Services | RV Camping DealsRV.net
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Help and Support  |  Contact

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes

 > Cracks in fiberglass roof

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
beerman5050

Newfoundland

New Member

Joined: 03/29/2008

View Profile

Offline
Posted: 07/02/08 09:47am Link  |  Quote  |  Print  |  Notify Moderator

We own a 2004 Coachman Sportscoach Elite 40' motorhome and yesterday we had a leak at the front of the roof by the TV. When I got on the roof to check I found numerous cracks in the fiberglass roof. These cracks were around the vents, fantastic fan, antenna, etc. Some were a foot long and some were shorter and they all started from the vents etc and extended outward. For example there are about 10 cracks around the fantastic fan. I had checked the roof about a month ago and there were no cracks in it at that time. Has anyone else had this happen? What would be the best way to repair the roof? Thanks for any response.

javaseuf

Southern Cal

Senior Member

Joined: 03/30/2005

View Profile


Posted: 07/02/08 10:13am Link  |  Quote  |  Print  |  Notify Moderator

I would bet that those are stress cracks in the gel-cote and not cracks in the actual fiberglass that go all the way through.
The problem will be stopping the cracks from getting larger.
Every crack will need a small hole drilled at it's end to stop further cracking and then the easiest way to finish the surface would be to fill, sand and then paint.


Steve
2007 Springdale 291RKL
2003 F150 King Ranch
2001 Dodge Van w/Wheelchair Ramp
1991 Palomino Mustang PUP
Eureka Timberline Tent
Yamaha IF2400isc
Yamaha EF3000iSEBC
"Politically Incorrect And Proud Of It"


Merlin44

We are in Tucson, AZ this year

New Member

Joined: 12/15/2007

View Profile

Offline
Posted: 07/02/08 11:23am Link  |  Quote  |  Print  |  Notify Moderator

javaseuf wrote:

I would bet that those are stress cracks in the gel-cote and not cracks in the actual fiberglass that go all the way through.
The problem will be stopping the cracks from getting larger.
Every crack will need a small hole drilled at it's end to stop further cracking and then the easiest way to finish the surface would be to fill, sand and then paint.


Just courious. Do you mean, to drill all the way through the roof or just part way?


1998 American Eagle,40ft,325 Cummins engine,1 slide.
2001 Jeep Wrangler Toad, Blue Ox Hitch & Blue Ox Toad Break.


APP

Charlotte, NC

Senior Member

Joined: 12/11/2003

View Profile


Posted: 07/02/08 11:46am Link  |  Quote  |  Print  |  Notify Moderator

For a quick fix to stop the leak, CampingWorld sells ProRV Sealant in a can that can be applied with a paint brush. This stuff gets down in the crack and creates a good seal. It might only last a year or two. I have used it for a leak in our fiberglass roof.

Good Luck!

Al


Great Family
Some Dogs
Monaco LaPalma

chastho

arkansas

Senior Member

Joined: 07/27/2005

View Profile


Posted: 07/02/08 01:03pm Link  |  Quote  |  Print  |  Notify Moderator

The clearance lights are where leaks in the front usually come from.

beerman5050

Newfoundland

New Member

Joined: 03/29/2008

View Profile

Offline
Posted: 07/02/08 01:16pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the replies. I would not like to drill holes in my roof if it is just stress cracks in the gel-cote. Then I'd have to repair holes insread of surface cracks. I'm hoping that no more cracks appear and the ones there now do not go any further. It looks bad. Is this normal for a fiberglass roof? Is there any way to cover the cracks?
Thanks chastho, I will certaintly check my clearance lights for the leak. I did notice that there was water on the inside of the lens on all my clearance lights in front. I have removed my front tv and will spray with my water hose to see if I can locate the leak. Maybe someone knows of a better way to find and locate a leak.

bobkinfl

Ormond Beach FL

Full Member

Joined: 06/04/2005

View Profile

Offline
Posted: 07/02/08 02:27pm Link  |  Quote  |  Print  |  Notify Moderator

javaseuif is probably right about non-leaking cracks, but they may not be in the gel-coat, they may simply be in the clear coat paint. I had/have that problem in my 2000 National SeaBreeze and at first thought it was gel-coat, but I took a couple of flakes to a fiberglass shop and they diagnosed clear-coat paint. I bought some shop quality clear coat, cleaned, sanded and stopped them for a while. Now I just pick off the flakes and wax the 'bare' fiberglass. So look for yiour leaks around seams and gaskets. As mentioned, the clearance lights or the top of the windshield are good candidates.


livin' and lovin' the retired life in Fl. And travellin' in our MH.
"You can't change the wind, but you can adjust your sails"

Geozzz

South Jersey

Senior Member

Joined: 10/14/2007

View Profile

Offline
Posted: 07/02/08 02:56pm Link  |  Quote  |  Print  |  Notify Moderator

Try one of the Sealtech dealers for leak testing.


Kathy & George Zimm
Mickleton NJ
2006 Coachman Epic and 1 Sheltie


imgoin4it

Alamogordo, NM USA

Senior Member

Joined: 10/25/2004

View Profile


Posted: 07/02/08 02:57pm Link  |  Quote  |  Print  |  Notify Moderator

I do not know about Coachman, but most manufacturers I am aware of have a 10 year warranty on their roofs. If the fiber glass roof is what is cracking it may be under warranty. If your roof is leaking and it is not as the result of seal/ caulk material, I would be checking on the warranty.


Retired and loving it
Living in the Land of Enchantment
Traveling in 2007 Newmar KSDP
towing a Jeep Liberty
with a Blue Ox tow bar

kix

Racy Point, Florida USA

Senior Member

Joined: 03/01/2003

View Profile

Offline
Posted: 07/02/08 03:42pm Link  |  Quote  |  Print  |  Notify Moderator

To check for a leak here's what I've done.
Set a large as possible box fan in the entry door and use plastic to close off the rest of the doorway. Tape the plastic in place. close all windows and vents and seal any other opening where the air blown in by the fan may escape. Turn the fan on to "pressurize" the coach interior. Spray a soapy water solution on the outside in the area where you suspect a leak and look for bubbles.


KIX
'02 Winnebago Ultimate Advantage
350hp Cummins ISC
'93 Jeep Rockcrawler

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  Class A Motorhomes

 > Cracks in fiberglass roof
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2008 RV.Net | Terms & Conditions | PRIVACY POLICY | YOUR PRIVACY RIGHTS