Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
Sunline RV Forum
Sunline User Photos

Go Back   Sunline Coach Owner's Club > Sunline Club Community Forums > Sunline Community
Click Here to Login

Join Sunline Club Forums Today


Reply
 
Thread Tools Search this Thread Display Modes
Old 05-25-2022, 04:27 PM   #1
Junior Member
 
Join Date: Oct 2021
Location: Georgia
Posts: 15
SUN #12999
pat55 is an unknown quantity at this point
Wavy Wonky Roof

I have a 1993 T2052. Generally in great shape. Looking at roof it flexes and pops when I push down, very wavy. Has 4 foot aluminum sections running side to side, a sealant on each seam. Sealant appears intact as does the sealant around edges and corners. Has never been painted. Wanting to know what maintenance should be done. Also around all openings there is a material that is built up, looks like 2 inch dams around vents, ie bath window, fridge vent but this is an inch or so outside of vent. There was a post from a couple of years ago with a wavy roof but that had some roof paint or covering.

https://www.sunlineclub.com/forums/f...highlight=roof

My roof video
https://photos.app.goo.gl/1wDjhfeHpUby3W4Z7
My roof photos
https://photos.app.goo.gl/ANfFXuDYVigk6uN76

If I need to reseal seams any suggestions for reaching across roof or getting on it with the flexing?
Thanks for any help or suggestions
__________________

__________________
pat55 is offline   Reply With Quote
Old 06-01-2022, 04:52 PM   #2
Moderator
 
JohnB's Avatar
 
Join Date: Nov 2006
Location: Ohio
Posts: 12,239
SUN #89
JohnB is on a distinguished road
Hi Pat55,

A few things, this post you linked https://www.sunlineclub.com/forums/f...ean-20295.html is a 2006 or 2007 model year EPDM rubber roof that has wavy issues. It is a very different roof and issues then your 1993 metal roof but has similar service needs.

The metal roof of your video can have flex of the metal like that. The seamed metal roof is not fastened to the roof rafters directly. It just lays on top of the rafters, thus it can pop up and down like your video shows. The amount of flexing may change some between hot and cold temps.

You are wise to ask before getting on the roof. Your roof is not a direct walk on type of roof. The thin metal will not support your weight between the rafters without damaging the metal. You need to use smaller manageable sized pieces of plywood 3/8" thick or thicker to span over the rafters to spread your weight out. I used 3/8" thick 24 " or 30" wide by 48" long pieces of plywood. Large enough to spread the load out over 2 or more rafters, yet I can get it up on the roof.

See this setup, while this is for the Sunline rubber roof which is also not a direct walk on roof, it works the same for the metal roofs.

In this case, I am servicing the roof AC unit, but you use the same board setup for any roof item.

This starts with a very sturdy ladder on a solid footing. Getting on and off the ladder to the roof is a danger area. The ladder I saw in your video I would not recommend be used as it is not tall or stable at height enough.


Top protect the rubber surface from abrasion, I use tarps or other cloth, carpet, etc protection, then use the plywood sheets over the tarp. For the metal roof, using a protective tarp or sorts can help not scratch the metal. The plywood need is the same.


From your pictures, they are very good! You get an A+ on the pics.

This tank vent shows whatever sealant was used, did not bond to the plastic roof vent. It is lifted, may be a leak source and should be removed and cleaned before applying new caulking.


The same goes for the crank up roof vent, the caulking did not bond to the metal flange of the vent. Surprised if it is bonded well to the metal roof. This also should be removed and replaced.


To get off the old non stuck sealant, a dull scraper and a heat gun to warm it, not real hot, just warm it, can help the scrape up. And any left over small bits of small caulk, some caulk types will clean with mineral sprits and a rag rubbing it off. Then use a high flash cleaner like denatured alcohol or Naphtha etc. to get the left over mineral spirts residue off before applying the new Dicor caulk.

As to what to seal the roof with, this would be the roof metal seams and all roof flanges and gutter rails. I'm not sure what was used by the prior owner but they had a wrong choice on the tank vents and the crank up roof vents.

Some folks used Dyco 20/20, I have not used this as it is very thin, (6 mils thick) I have no info on how long it lasts, but it is cheaper then what I use. It may work well, but may also need to be applied more frequently.

This post is very common to yours here I suggest and Eternabond product on the seams, in place of using the Dyco 20/20. I come from a camper restoration background and any leak is a bad one. And I tend to use commercial roofing products in many cases, they have longer life warranties but also cost some more. https://www.sunlineclub.com/forums/f...tml#post157479

For the roof gutter rails, I suggest Dicor non sag roof sealant smoothed out, and Dicor self leveling sealant on the roof flanges. This is still RV world caulking, but it flexes with the camper and made for the vibration of towing and the metal, plastic and roof membranes campers use. This caulk needs to checked 4 times a year after the first year or so from applying. Any small hair line cracks need to be clean and resealed before they become larger.

The important need for any roof sealant, the area has to be clean. The sealants will not bond to dirt.

Also, caution on using silicone caulk on the roof or the the side of the camper. Normal home type silicone will not hold up long term, the bond to the metal will give way sooner or later from the flexing. The silicone itself will be intact, just not bonded to the camper.

Hope this helps

John
__________________
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC

Google Custom Search For Sunline Owners Club
JohnB is offline   Reply With Quote
Reply


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
Wavy roof eeek! What does this mean? claybuddy Repairs and Maintenance 9 11-21-2021 11:58 AM
Wavy exterior wall Rt.239Design Repairs and Maintenance 31 05-14-2018 11:15 AM


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Sunline RV or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 04:10 AM.


×