Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 05-21-2014, 01:17 PM   #1
Member
 
TriMoot's Avatar
 
Join Date: Oct 2013
Location: Spokane, WA
Posts: 94
Blog Entries: 1
Roof Questions - 1997 Rexhall Air

So, I'm 'thinking' I might need to re-seal the roof as I see white stuff on my windshield after a rain storm the next day when things dry off.

So.....where do I begin?

I'm not even sure what kind of room I have...fiber glass is my best guess but I don't know and not sure where to go to find out for sure.

Do I need to power wash the roof and sides? I see some small spots that must be mold?????

What's the best procedure for addressing the roof?

Thanks in advance.
Tri
__________________

__________________
TriMoot is offline   Reply With Quote
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!

Old 05-21-2014, 01:50 PM   #2
Senior Member
 
Gocoffeer's Avatar
 
Join Date: Feb 2012
Posts: 1,137
From you description..."white stuff"...I do think you are looking at a rubber roof, EPDM. Step 1. Get up there and clean the roof (Comet for the stained areas, mild dishwashing detergent and a soft bristled scrub brush).
Step 2. Determine if the roof needs a repair (Use a lap seal type calking and Roof repair tape)
Step 3. If the roof needs coating (EPDM roofs are designed to age as you have described, they actually and naturally oxidize) Order enough Liquid Roof to do the coat.
Step 4. Set up a day to get the job done....you might need to wash the roof again and let it dry just before coating. It takes about 3 days for the new rubber skin to cure then you can walk on it and inspect. Go over and touch up spots that were missed or poorly coated.

Been there once and coated my 34'er.... it goes faster than you think.

NO POWER WASHING.... if the material is salvageable you can tear it with the water pressure. (But I must admit I have seen several YOUTUBE videos where the person washed his rubber roof using a power washer...I would not use that tool on mine)
__________________

__________________
Craig Gosselin
1994 Fleetwood 33H
1995 Fleetwood 30H (parts vehicle)
Gocoffeer is offline   Reply With Quote
Old 05-22-2014, 09:14 AM   #3
Member
 
TriMoot's Avatar
 
Join Date: Oct 2013
Location: Spokane, WA
Posts: 94
Blog Entries: 1
I guess that's the big issue is figuring out what kind of roof I have. Think I'll climb up there tonight and really give it a looksey. I don't think there are any major issues, just re-coating it I think.
__________________
TriMoot is offline   Reply With Quote
Old 05-22-2014, 09:22 AM   #4
Senior Member
 
Bobb.25's Avatar
 
Rexhall Owners Group
Join Date: May 2011
Location: South Central Ohio
Posts: 408
M 2003 Rexhall Rexair has a fiberglass roof. Confirmed when removed/replaced the vent fans. Some previous owner had put a roof coating on it so it is rough with brush marks, and holds the dirt, it is not fun to clean. It does cause white-gray streaks on the sides.
Bob
__________________
2003 Rexhall Rexair, 3550 Ford V10 with Banks
2014 Honda CRV-AWD via Blue Ox
Travel with SWMBO and Golden Doodle co pilot
Bobb.25 is offline   Reply With Quote
Old 05-22-2014, 07:26 PM   #5
Senior Member
 
Planocat's Avatar
 
Join Date: Jun 2008
Location: Plano, TX
Posts: 106
You have a fiberglass roof that requires little maintenance. However, you do want to keep a good seal at the front and rear cap line. You have a twin to mine which I sold in Fall of 2012. It generated white streaks the entire time I owned it from 1997 until 2013.
__________________
2004 Dutch Star 3809
Spartan Chassis
370 Cummins 6c8.3
Planocat is offline   Reply With Quote
Old 05-23-2014, 09:48 AM   #6
Member
 
TriMoot's Avatar
 
Join Date: Oct 2013
Location: Spokane, WA
Posts: 94
Blog Entries: 1
THANK YOU Bob and Planocat! That's JUST what I needed (and thought). Whew..So...here comes the questions:

1. On a fiberglass roof can I / should I, power wash the roof?
2. If not, what's the best way to get the mold off (it's not excessive, but it bugs me, see attached photo)
3. What do I use to reseal, refresh, whatever, the roof to stop prevent the white stuff from streaking the windows?
4. And in regards to the front and back joints, what do I use to ensure they stay sealed?

Thanks in advance folks!
__________________
TriMoot is offline   Reply With Quote
Old 05-24-2014, 08:52 AM   #7
Senior Member
 
Bobb.25's Avatar
 
Rexhall Owners Group
Join Date: May 2011
Location: South Central Ohio
Posts: 408
Quote:
Originally Posted by TriMoot View Post
THANK YOU Bob and Planocat! That's JUST what I needed (and thought). Whew..So...here comes the questions:

1. On a fiberglass roof can I / should I, power wash the roof?
2. If not, what's the best way to get the mold off (it's not excessive, but it bugs me, see attached photo)
3. What do I use to reseal, refresh, whatever, the roof to stop prevent the white stuff from streaking the windows?
4. And in regards to the front and back joints, what do I use to ensure they stay sealed?

Thanks in advance folks!
I have watched professional crews power wash RVs, including the roofs, so it's do-able. However if I were to do it I would avoid areas with seals, the end cap seals, roof penetration seals,...skylight, fridge vent, fan vents, etc... I may power rinse it next time simply to reduce how much water the process uses.

I prefer to use a soft brush with a long handle, and a bucket with car wash solution. I use a spray bottle with some oxy clean for tough spots. This gives me time to get up close and personal with all of the caulking to check for cracks, etc..

The white stuff that runs down the sides is simply atmospheric dirt that has settled on the nice big flat roof and gets washed down by rain. If some yahoo hadn't put a coating on the roof that is fairly rough, I would probably wax it to make it more slippery for the rain to wash off the roof stuff. I may try mop and glow this year, I've heard good things about it.

I put a white tape called eternal-bond on the front cap joint last year to see how well it worked and held up. I am satisfied and will do the rear cap this year.

My best unasked for advice is to carefully inspect the caulking around all of the roof penetrations. I got my first leak around the fan in the bathroom, and can't get the stains out of the ceiling.
__________________
2003 Rexhall Rexair, 3550 Ford V10 with Banks
2014 Honda CRV-AWD via Blue Ox
Travel with SWMBO and Golden Doodle co pilot
Bobb.25 is offline   Reply With Quote
Old 05-24-2014, 11:21 AM   #8
Junior Member
 
Winnebago Owners Club
Join Date: Feb 2013
Posts: 23
Just sold my 2002 Rexhall Gas to get diesel pusher
loved the coach had same issue
White stuff is oxidation from fiberglass roof
I had a detailer rub out front of roof then
apply heavy wax job it worked for a while

Suggest you consider a call to factory
in Lancaster ca. they are still in business
for solution and to verify the type of roof
on the coach. They are great folks ask
for service
__________________
Lionheart is offline   Reply With Quote
Old 05-24-2014, 11:40 AM   #9
Senior Member
 
Brockx's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: Punta Gorda FL.
Posts: 2,631
Quote:
Originally Posted by Bobb.25 View Post
................. I got my first leak around the fan in the bathroom, and can't get the stains out of the ceiling.
50/50 water and peroxide in a spray bottle often works miracles on fabric stains. Let it dry repeat as needed.
__________________
2008 Bounder 38P F53 24/30K V10, 2013 Kia Soul Basic 6 speed manual, Ready Brake Elite tow system (previous equipment 1996 Pace Arrow Vision w/Acme Dolly)
Brockx is offline   Reply With Quote
Old 05-24-2014, 01:32 PM   #10
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,078
The fiberglass roof is probably painted - mine is (not a Rexhall) and eventually the paint begins to chalk. I was scrubbing and waxing mine all the time to reduce the chalk runoff, so finally re-painted it with Dicor Fiberglass Roof Coat. I just scrubbed the roof again with detergent, bleach and a medium bristle brush to get rid of chalk, dirt and mold. Then I wiped on a liquid deglosser to prep it and painted with the Dicor. No special technique - it's just paint. Now my roof is briiliant white again and no chalky residue.

I think a marine deck paint or even a good porch & deck paint would have done as well, but the Dicor was no more than a top quality deck paint.

A floor wax will temporarily stop the chalking. One coat of Mop & Glo or similar is good for 2-3 weeks and multiple coats probably longer. Only takes 30 minutes to wax, but you have to wash it well first or it's a waste of time.
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 05-24-2014, 04:12 PM   #11
Senior Member
 
Planocat's Avatar
 
Join Date: Jun 2008
Location: Plano, TX
Posts: 106
Tri:

Bob covered it all very accurately.

Here's a couple of additions and observations if your coach is like the one I had:
1. Your roof is not painted. It is the color gel coat they used.
2. Probably not textured by the previous owner. RexAir was smooth on the edges and wrapped up and over to a textured fiberglass on top.
3. Dicor is your friend. Become acquainted with it and don't be afraid to use it!
4. Fiberglass ( or any roof surface for that matter ) becomes an ice rink when you apply water and any cleaning solution. My neighbor at the lake died from a fractured skull when he fell while power washing his roof. At that point I hung up my ice skates and pay someone else to do mine.
5. White streaks will be a way of life...... Just as will black streaks from the rubber window gaskets. Consider them the junction of RV meets Outdoors. You will be able to keep them to a minimum with considerable effort, but they will not be completely eliminated.
6. Sealing as Bob mentioned is the most important factor of roof maintenance. Take it very seriously. As for the cosmetic aspect, who can see it?

Use it and enjoy it....... Our RexAir produced many great memories. It is a very functional floor plan. I still miss the storage capacity!

Planocat
__________________
2004 Dutch Star 3809
Spartan Chassis
370 Cummins 6c8.3
Planocat is offline   Reply With Quote
Old 05-25-2014, 12:10 PM   #12
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,078
An unpainted fiberglass surface, or even gel coat, will eventually chalk too. You can still stop that with some prep work and a quality paint. Or even seal it with a clear coat of some type once the chalky surface is cleaned up.
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 05-27-2014, 11:07 AM   #13
Member
 
TriMoot's Avatar
 
Join Date: Oct 2013
Location: Spokane, WA
Posts: 94
Blog Entries: 1
Awesome guys! Thanks for all this input! Especially the one about the skating rink. I've been watching a lot of YouTube video's of people washing their roofs and shudder as they are walking on soapy slick roofs, YIKES! One slip and it's a life changing moment.

Everything you guys said makes sense and now I understand what's going on. The white stuff is coming from the front cap as the front windows and windshield have the white streaks. I wondered why and now I know.

Wow, looked at the Dicor video, MAN that's a ton of work! Obviously worth it but yikes, I'm going to need a couple of weeks to get it all done and done right and then another couple to recover! Here's one:
__________________
TriMoot is offline   Reply With Quote
Old 05-28-2014, 04:35 PM   #14
Senior Member
 
Workhorse Chassis Owner
Join Date: Mar 2007
Posts: 320
All Rexhalls have a fiberglass roof. Bill Rex does not believe in rubber etc roofs for longevity. My last coach had a 1 1/2 low spot where the AC caused the roof to sag (wooden trusses in roof and wooden framing). It was an old coach. Sealed the roof with elastometric coating used on houses after cleaning roof. In a rain water would pool in low spot and come off roof when moving MH. Never leaked in the 5 years it was on roof and didn't when I sold it with 125K miles
__________________

__________________
2005 30' Rexhall Vision, W-22 chassis, 19.5 tires, 208'' factory WB, 6000 CCC
scoutmstr is offline   Reply With Quote
Reply

Tags
roof



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Are Air Ride Systems Worth the Money? Dave1194 Class A Motorhome Discussions 27 02-19-2015 04:33 PM
put a roof a/c unit on workinrvers Winnebago Industries Owner's Forum 9 04-23-2014 10:37 AM
Air & Tire Dilemma RussOnTheRoad MH-General Discussions & Problems 38 03-16-2014 11:02 AM
Relocate air intake 1997 Safari kketterling Monaco Owner's Forum 2 02-06-2014 06:30 PM
Coleman Roof Air Finhawk RV Systems & Appliances 18 09-01-2013 11:34 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:32 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.