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

Thread Tools Display Modes
Old 11-04-2017, 07:07 PM   #1
Senior Member
john5646's Avatar
Join Date: Sep 2015
Location: lancaster
Posts: 309
Roof stains, mold @ 4' seams

Ok so started some winter preparations today, started on roof and noted stain or mold at every 4' ... The pictures are after cleaning non prior, I expected to be able to remove them. Most came off but two areas remain somewhat unchanged.
This appears to be originating from between decking and covering, since it's such a defined line.
Any thoughts Click image for larger version

Name:	IMG_2027.jpg
Views:	110
Size:	280.7 KB
ID:	155759Click image for larger version

Name:	IMG_2026.jpg
Views:	104
Size:	272.9 KB
ID:	155760Click image for larger version

Name:	IMG_2025.jpg
Views:	105
Size:	283.9 KB
ID:	155761
john5646 is offline   Reply With Quote
Old 11-04-2017, 07:15 PM   #2
HangDiver's Avatar
Join Date: Feb 2017
Location: Montrose, Colorado
Posts: 2,064
Its hard to tell from the photos, and maybe someone with more experience can comment, but it looks like the mold is coming from the inside, out, as if moisture was trapped at the cross members.
2014 Micro Lite 19fd
2015 F-150 5.0L V8 XLT Crew Cab, 4x4, Tow Package, 36 gal tank, 3.55 locker, 1891 payload, Integrated Brake Controller, Roadmaster Active Suspension

Wooden Spoon Survivor
HangDiver is online now   Reply With Quote
Old 11-06-2017, 10:02 AM   #3
Senior Member
john5646's Avatar
Join Date: Sep 2015
Location: lancaster
Posts: 309
This was forest river response.

Itís not mold. This happens on pretty much every unit. It is a chemical reaction between the glue and paint. It can be cleaned with bleach or spic-n-span/water solution.

If you have any other questions please let me know.

john5646 is offline   Reply With Quote
Old 01-14-2018, 08:22 AM   #4
Junior Member
Captain Murica's Avatar
Join Date: Feb 2017
Posts: 23
I've had that on pretty much every camper I have ever owned. I've tried scrubbing it with zero luck so I have just learned to live with it.
2017 F-350 Lariat DRW CC FX4 6.7L PSD with 4.10
2016 Salem Hemisphere 368RLBKH
Captain Murica is offline   Reply With Quote
Old 01-14-2018, 08:32 AM   #5
Join Date: Jun 2015
Location: LaGrange GA
Posts: 48
roof lines

I also have had the marks on every unit I have owned, some worse than others. It definitely is along the roof rafter lines. I would think an adhesive reaction would be on the whole roof though. The stain definitely comes from the joint in the plywood roof where the pieces join at the rafter though. I just wonder if the condensate/moisture from the interior of the camper is seeping through the plywood joint? It could be mold/mildew if this is the case !!!
Matheny9 is offline   Reply With Quote

mold, roo, roof

Thread Tools
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

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.

All times are GMT -5. The time now is 10:13 PM.