 |
09-22-2015, 08:13 PM
|
#1
|
|
Member
Join Date: Apr 2015
Posts: 54
|
Replace caulking with silicone
My DW and I purchased our first RV this past June. It is a FW and the seams are sealed with silicone and some sort of caulking. I don't know why silicon was not used for all the seams.
My concern is that the caulking on the bottom of the cap is working its way out of the seams. I am assuming it is due to movement while traveling.
Is there a reason for not using silicon on all seams? If not, would it be a problem replacing the caulk with silicone? I am concerned that water will get into the seams.
Duane
2016 Crusader 295RST FW
2011 Toyota Tundra iForce 5.7 4.10 gears
|
|
|
 |
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
|
09-22-2015, 08:48 PM
|
#2
|
|
Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Aug 2014
Posts: 1,899
|
Normally seams are sealed with Dicor. Lots of people say silicone is bad with all thd UV.
Regards,
Danm
__________________
2014 40QBH Phaeton DP Cummins 380HP ISL, Freightliner XC, 2019 Jeep Grand Cherokee Trailhawk TOAD
Blue Ox Aventa tow bar, SMI Air Force One -Cave Creek, AZ.
|
|
|
|
|
09-22-2015, 08:54 PM
|
#3
|
|
Senior Member
Join Date: Sep 2013
Posts: 596
|
Dicor for the roof and proflex for everything else on the outside. Windows, doors side vents and some trim may have grey butyl inside the joint as an extra barrier.
Silicone will not adhere to itself. Once it tears away, you have to use a solvent to remove it completely which may damage the roof membrane.
Some rv shops use it because it guarantees them labour a year or two down the road.
Is it grey butyl putty that's coming out the sides of the cap? That's OK, it just means they used lots during assembly and some of it is oozing out with thermal expansion. Just tear it away.
|
|
|
|
|
09-22-2015, 08:59 PM
|
#4
|
|
Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,726
|
Newmar says to never use silicone seal as the primary sealant. They do use some over the windows to keep the main sealant from weathering so badly.
Our Magna uses urethane or Dicor depending on where it is. Urethane on all the awnings and Dicor on the roof. Not sure about the windows as I haven't needed to check them yet but it doesn't seem to be silicone.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
|
|
|
|
|
09-23-2015, 07:24 AM
|
#5
|
|
Member
Join Date: Apr 2015
Posts: 54
|
I want to thank everyone for the information provided. I will just remove what is oozing out and not mess with it.
Thanks again
Duane
Duane
2016 Crusader 295RST FW
2011 Toyota Tundra iForce 5.7 4.10 gears
|
|
|
|
|
09-27-2015, 03:11 PM
|
#6
|
|
Member
Join Date: Apr 2015
Posts: 54
|
marcham, the caulking is grey so I took you advise and removed the excess.
Duane
2016 Crusader 295RST FW
2011 Toyota Tundra iForce 5.7 4.10 gears
|
|
|
|
|
09-28-2015, 05:01 AM
|
#7
|
|
Senior Member
Join Date: Sep 2013
Location: DEL-MAR-VA
Posts: 377
|
Never ever us silicone on an rv. Use Dicor anywhere that touchs the rubber roof and proflex down the sidewalls. Proflex is the best and if I had a fiberglass or aluminum roof I would us it up there as well.
__________________
2016 Jayflight 32 BHDS Fiberglass sides. 16" wheels and LT TIRES
2017 Ford F-250 CCLB 6.2 with 4.30 gears
Traded06' Chevy CC Dually 6.0.
|
|
|
|
|
09-28-2015, 06:25 AM
|
#8
|
|
Senior Member
Newmar Owners Club
Join Date: Aug 2014
Location: Lake Norman, NC
Posts: 235
|
This year I covered all of the roof seams and, all roof top devises with eternabond tape on our class A. Best mod I have done to the unit. Will never have to worry about the roof leaking EVER. Great Product....
__________________
2 of us + 1 rescue, Sadie (not sure who rescued who. My cancer buddy, with me 7-24 for 1-1/2 yrs. mans , no my best friend) 11’ Newmar, Lake Time Now...
|
|
|
|
|
09-28-2015, 03:03 PM
|
#9
|
|
Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 53,653
|
Silicone caulk is a BIG No No on an RV! 
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
|
|
|
|
|
09-28-2015, 05:18 PM
|
#10
|
|
Senior Member
Join Date: Aug 2010
Posts: 2,772
|
A lot of people recommend siliconing the tops and down the sides of windows about 1/3 of the length.
Sent from my iPhone using iRV2 - RV Forum
__________________
Terry & Alice
2006 Bounder 38L DP
2012 GMC Terrain
|
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
