Reply
 
Thread Tools Display Modes
Old 05-11-2016, 05:57 PM   #1
Member
 
Join Date: Jul 2015
Location: Denver
Posts: 62
roof seam crack - vertical orientation, which sealant to use?

found a crack in the sealant in the seam where the front cap attaches to the roof. It's not a flat seam like a roof vent, and there seems to be a lot of conflicting info on what sealant to use.

Any recommendations?

thanks for your response.
__________________

__________________
2016 Forester 3051SF
MMulcahy is offline   Reply With Quote
Old 05-11-2016, 06:14 PM   #2
Who Dares, Wins
 
doc73's Avatar
 
Join Date: May 2012
Location: Chester County, PA
Posts: 3,712
Geocel Proflex.
I have also used Sikaflex as well to seal some seams. This is for up and down seams. Dicor on the roof seams (self leveling) or eterna bond tape.
__________________

__________________

Pat, Jen & Heather... Oh yeah and our trained attack trailer cat, Cinnamon
2015 ChevyHD D-Max
2014 Greywolf 26DBH
doc73 is offline   Reply With Quote
Old 05-11-2016, 06:26 PM   #3
Senior Member
 
Join Date: Jun 2014
Posts: 241
Quote:
Originally Posted by MMulcahy View Post
found a crack in the sealant in the seam where the front cap attaches to the roof. It's not a flat seam like a roof vent, and there seems to be a lot of conflicting info on what sealant to use.

Any recommendations?

thanks for your response.

I just used 4" eterna bond tape all around the perimeter of the roof. There was plenty of width for the front cap. It sticks really well. It should last longer than using just dicor.
__________________
Brian217 is offline   Reply With Quote
Old 05-11-2016, 11:11 PM   #4
Member
 
skylilymd's Avatar
 
Join Date: Feb 2016
Location: Maryland
Posts: 62
Is it on the side of the front cap or at the corner on top ? I only ask because I am currently repairing this on my forester - the front cap is screwed (underneath that vinyl trim piece) into the roof and sides with self tapping one inch screws - they are only grabbing into the thin piece of panel board on the opposite side under the fiberglass - they pull out after a while of use and that lets the seams crack and water comes in. I first noticed the dicor on the front right roof corner kept cracking after a trip and every time I sealed it it would crack again. I finally eterna-bonded the whole roof and all openings but water had got in the front right already. Now I'm almost done repairing it (which I will have videos of) - I took down the front cab ceiling all the way to the fiberglass and added a steel backer to the screws on the right side of the cap to bite in to - they were rusted and the last two were completely loose. This may not be the same issue you are having but if it is I thought I'd share what I found out. I have a 2012 3171 ds - fwiw I have found that if you have a small crack to seal the dicor seems to be more waterproof than eternabond especially on the textured fiberglass roof
__________________
skylilymd is offline   Reply With Quote
Old 05-12-2016, 11:29 AM   #5
Canadian Member
 
itat's Avatar
 
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 2,318
I use ProFlex RV on vertical seams where you don't want to use a self-leveling sealant.
__________________
2011 Rockwood Signature Ultra Lite 8293SS, 12K Equal-i-zer
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed, 3.73
Fondly remembered:
2010 Rockwood Roo 23SS (2012 - 2014)
2009 Ford F-150 XLT SuperCrew, 5.4L, 4x4, 5'6" bed (2012 - 2016)

itat is offline   Reply With Quote
Old 05-12-2016, 11:37 AM   #6
Senior Member
 
5picker's Avatar
 
Join Date: Aug 2015
Location: South Western PA
Posts: 2,907
Quote:
Originally Posted by doc73 View Post
Geocel Proflex.
I have also used Sikaflex as well to seal some seams. This is for up and down seams. Dicor on the roof seams (self leveling) or eterna bond tape.
X2
__________________
_________________________________________
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel
Ford F-Series SCREW 4x4
TST Tire Monitor - Sinemate 3500w Gen.
2016 Nights Camped = 46
5picker is offline   Reply With Quote
Old 05-12-2016, 12:38 PM   #7
Member
 
Join Date: Jul 2015
Location: Denver
Posts: 62
thanks all for your responses

I'll give the ProFlex a try.
__________________
2016 Forester 3051SF
MMulcahy is offline   Reply With Quote
Old 05-13-2016, 07:22 AM   #8
Senior Member
 
Join Date: May 2014
Location: Shenandoah Valley, VA
Posts: 352
eternabond tape
__________________
2016 Flagstaff 23LB
howie70 is offline   Reply With Quote
Old 07-23-2016, 05:43 PM   #9
Junior Member
 
Join Date: Dec 2015
Posts: 3
Guys, thanks for posting these messages. I am having same issue as Sylilymd. I have a sunseeker 3100 2011 and front cap seal is separating from fiberglass roof. was at dealer today asking what caulk to use there and they had different opinions amongst themselves, kind of frustrating. Ended up with dicor self leveling lap sealant as directed by service tech but not sure if that is right or not. Does anyone have experience with that on fiberglass roof with what appears to be a rubber seal between the front fiberglass cap and the fiberglass roof? Also for vertical seams they gave me Nulex 313 but after I read the tube it says for glass and vinyl, ugh, doesn't seem right. Skyliliymd did you ever take the video of your repair? I would love to see it. Thanks for your help.
__________________
Jon S is offline   Reply With Quote
Old 07-23-2016, 10:12 PM   #10
Member
 
skylilymd's Avatar
 
Join Date: Feb 2016
Location: Maryland
Posts: 62
If you have a soft touch ceiling and you can't see any water stains or smell any musty smell then you are probly lucky - just clean that whole front cap seam on the roof and get some 4" eternabond tape and self leveling dicor. Tape it across the whole seam and what I did (not sure if it helps but made me feel better) is dicor the tapes edges so water can't go under. What I did to attempt to prevent it from happening again was add a thin piece of steel underneath the Luan plywood and screw the cap screws on that side down into it to grab better. You would not be able to do that of course unless you tore down the ceiling inside to get underneath that - which I would not recommend unless you clearly have a leak and water staining on the ceiling. I have roof pictures on the other roof leak thread here - I did take a video of the mold and damage but I didn't take one of the repairs because I was just trying to get it done lol - if u want to see that I can post it
__________________

__________________
skylilymd is offline   Reply With Quote
Reply

Tags
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




» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 01:52 AM.