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Old 01-23-2016, 09:24 PM   #1
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A Winter Project - Roof Repair (Picture heavy)

We have a new "project" for over the winter.....

My son acquired a really nice looking 2006 T264SR last fall. The inside and frame under the camper are in outstanding shape. It was on a seasonal site before turned into the dealer as a trade. You could tell is was not towed much if any. The roof had some neglect, that was evident from looking at the roof caulk, however there was no issues inside or scent of a smell in the usual suspect areas. And I mean none.

Well.... after washing the roof to put it away for the winter, my son found one area was spongy, really spongy.... Knowing the Sunline bud board roof they have normal sag I said, that could be normal. So I took a look at it. Oh boy.... this soft is not normal. It was literally a rubbery feeling with no structure under it in the front right corner. And it was localized in about a 2 1/2" foot area.

Knowing once you find this, we need to deal with it now and not let it fester, we started into it. We opened up the roof and found dry rot and a prior dried wet area. After seeing this, we looked real hard at all 4 corners. The good news, the front left is rock hard and dry. Can't say that for the other 3.

So we are, "into it" and have been for the last few weeks. The pics will tell the rest. Since we do not have a lot of pics on roof replacement on SOC, this post will hopefully help others fixing, contemplating doing a roof repair or inspecting the roof.

In this case this is total roof replacement and rot repair. The rubber looked really crystallized from neglect of not being cleaned in the front leaking area. The mold must of ate into it. Mine was made in 2003 with lots roof TLC and and looks nothing like this crystallization. My son found a new membrane on Ebay for a good price. And with all the repair we have ahead of us, and to make sure we have all of it, its time to reset the roof wear clock. After we finish this repair my son and his wife will have great, dry and sealed camper. With a new walk on roof no less. I'm envious of the walk on roof... Son said today, well we can do your to add the walk on roof if your want? Ah...no thanks.... I'll waiting until a total rebuild comes on ours...

I will do this in several posts. The first the damage and taking the camper apart. Then the rebuild process.

The first problem area. This will compress down a good 3 inches and is springy. The pics do not show it but the feeling it totally different then sound bud board roofing. Think a rubber band feeling.



Someone put new sealant on the front and rear seams about a year ago. But the damage was done by then. The gutter were filled with dried goop and the screws rusted and wicking.














Now to the back of the camper. Here this one was still wet. T he bud board was wet but still semi intact. No springy feeling but wet. And the wet went all the way down the back wall to fester in the Darco membrane at the bottom of the back wall. So out it all came.

The left rear area. This area went down the back wall too. This looked like gutter screw water wick. And there may have been some rear seam issues.

Here is with the gutter rail off. The text book mold in the gutter rail behind the vinyl strip rusting out the screws








This left are went down the left side of the camper down into the lower membrane area of the wall. And it came in the outside shower flange.







And coming in the outside shower flange.


Now to the upper right corner by the bath shower. This area was rear seam leak. By the damage, it was the last one to go. The damage was more contained to the roof area.






So now to remove the roof. Shower dome and rear vents off


The AC unit off.


Then to get the AC off the roof. Had to think on this one. We created a scaffold 5 feet off the ground. The 2 of us lifted the AC off to the 2 x 12 and then down to the ground. Worked good


We roller it up from the back to the front


Then up to the front and off the roof.




So now it is all apart dried out and we are into the rebuild process. Will post more on the rebuild on Sunday.

Thanks for looking

John
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Old 01-24-2016, 05:52 AM   #2
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Great pics! I need to jump on mine as well, but finding a garage is the issue. I'll be following this thread closely.
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Old 01-24-2016, 07:51 AM   #3
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Thank God you build a pole barn large enough to do what you want and when you want!!!
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Old 01-24-2016, 05:07 PM   #4
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Quote:
Originally Posted by East Coast View Post
Great pics! I need to jump on mine as well, but finding a garage is the issue. I'll be following this thread closely.
Thanks East Coast. Finding the garage big enough, yes that is sometimes an issue. Up until the new barn came 2 years ago, all my repairs on the camper were mostly outside other then what I could bring inside my prior work shop. Our T2499 did fit inside after I reworked the overhead door, but it took up half the building and with all the "other stuff" inside, there was not much that could be done on the camper. When out T310SR came, it was 6" too tall and 2 foot too long... All work on it was outside. Winter was hard...

What area on yours has water concerns? If you have wood working tools, and time, any of this if fixable. That is one of the great things about the way these campers are made. Good luck on your camper.

John
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Old 01-24-2016, 05:09 PM   #5
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Quote:
Originally Posted by Poppy & Nana View Post
Thank God you build a pole barn large enough to do what you want and when you want!!!
Yes Kathy, I am thankful. It seems some times no matter how big a building you get, you can always seem to use more room... Too many "big" toys... Maybe sometimes we need less stuff...
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Old 01-24-2016, 06:00 PM   #6
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Back wall reconstruction

Here is the back wall and the 2 areas on the back roof corners.

Once the wet dried out, I must admit it does look a little better. You have to probe and check all areas that have a hint of what was wet. We replaced and cut back to sound wood on everything with the exception on the luan ceiling. Here is the progress.

We had both the left and right end wall stud go bad as roof water ran down inside to later rest in the bottom of the back wall trapped in the Darco waterproof membrane.

The left side was the worst. The entire length had to go. Some areas the glue was still attached and you can't yank or heavy pry as all the luan wall will come with it. Using a Dremel vibrating tool with the flat saw blade we plunged in behind the stud. Then using a Sawzall with a wood/metal blade to cut through rusted screws & staples, cut down the wall next to the luan wall board until the stud let loose.



The right side, the 6 feet in the middle was still sound but the top and bottom were bad. We just removed those bad sections.

Here is the top left with all the rot cut out


And the top right


Next was to treat the wood that was wet, dried out and still sound wood. And the luan ceiling and wall board. You have to kill the rot fungus to not take a chance on getting dry rot later one. And the epoxy we used also restores soft wood or in this case the thin luan ceiling and wall board. It hardened back up well once it dried.

We used the cold weather formula of CPES from Rot Dr. Wood preservation, rot repair, and restoration using epoxy resin on boats and homes.

2 part epoxy. The cold weather formula can be applied down to 32F. We waited until we had 2 plus good nights above freezing. If you ever use this product, you have to use a respirator. The fumes are bad after 10, 15 minutes


You can see here, it turns the wood darker once dried and it hardened up the wood again.








Now comes the reconstruction. You basically reconstruct the rotted out parts and then glue and screw back on. We used cold weather, outdoor construction adhesive. In our case, Loctite sub-floor. Most all wood glues can only be used down to 45F and making sure they cure in that temperature for sure can limit winter time working using those products. Even using cold weather products, we still had to time the application to align to a warm winter day.

Here is some of the rework. We had 4 rafters that the ends were bad. We cut off the bad end and created a solid splice in that was glued and screwed back together.






Top right completed along with the side top plate.


Left top done. Rafters and top plate




The rear wall we put a 2 x 4 pressure treated down on the bottom rail that is Darco membrane wrapped. It now has tiny staple holes from the original factory install were they rusted out. Figured the treated wood in this location was justified. The holes also let the water back out.

We used a Kreg jig to splice in all the joints. Those jigs work great. Son had one, Dad now needs to get one for sure...








The back is now reconstructed and ready for the siding to go back on.
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Old 01-24-2016, 06:44 PM   #7
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Back wall siding

Now to the siding on the rear wall. We waited until the weather cooperated again.

We started with the left side wall.


Sunline uses the folded corner method to help create a better water tight seal then just relying on the corner molding. The siding is fold over and stapled to the rear wall corner. This folded edge then gets sealing tape put over it before the rear wall siding is put on.


The siding itself is stapled. You start at the top and work your way down


And the siding on the left side


We still have the cargo hole and the slide trim to put on but we will do that as a time filler task later. Now to the back wall.

First was to mock up and see how it will align with the rework and the new roof sheeting in place of the bud board corrugate it will replace. We use the window cutout and old staple holes on the siding staple tab and the corner siding screw holes. While the siding tabs may not be in the exact same place, they are close. You also check the top along the rafter. When all align, then staple it on.

We C clamped the top siding on to do an alignment check




And too see how the roof sheathing will work with the rear end wall


Butyl based sealing tap applied to the corners and the top piece aligned and stapled back on. We only peel off the release liner on the sealing tap as we go with each piece of siding. It is very sticky and do not want to contaminate it by accident.


We keep working out way down the wall.


There is also a wall warp check. It is not uncommon a wall stud is warped out or in. There are 1/8" filler strips at the wall studs Sunline added to account for both stud warp and siding thickness changes. This shows up mostly on the front and rear walls. The corners with the folded siding, the 1/8" thick sealing tape and the wall stud warp required spacers to be check and added. Most need 1, some 2 and some 3, 1/8" shims. They staple on on the wall stud were the siding is stapled on.

We used a straight 8 foot 3/4 pine board as a straight edge. Then add shims as need to create as straight a line as we can.




If you look close at the studs, you can see the gaps. Here is the 1/8" spacer stapled onto the studs


And the rear wall back on. We will leave the corner molding off until the roof goes on.




The back is now done until we start with the roof plywood.
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Old 01-24-2016, 07:08 PM   #8
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Front right corner correction

Now to move upfront to work on the front right corner. This was today's work.

Here is the dried out rotted wood. We start with taking all the bad wood out.




As we were working through this, dry rot was well underway. We had to remove all the wood and top parts of the wall studs.

We were only going to take the top off the one end of the rafter that was questionable and dry rot reared it ugly head under it. So the whole end came off.




Here is all the rotted wood gone and the start of cutting new replacement wood


Creating the front angled shapes




Then to start filling in the rest of the rotted areas. Here are the new wood pieces just resting in place. These have to all come back out to do the Rot Dr treatment when the weather cooperates. Supposed to be Monday night.


And here is a rafter anomaly we do not exactly understand why. The front rafters start at the front bedroom roof vent and then get lower in height as they move towards the front. This is understood to blend the front to have roof pitch towards the rubber to siding seam. The odd part is the very first rafter after the roof vent. It is only 6 to 8" away and it drops 3/4" in height in that 6 to 8". The next rafter is ~ 16" away and is level with this 3/4 lower one and then the roof will drop approx 2" to the 2 x 3 at the front roof seam.

If you look in this pic, we cut 2 wedge shims 3/4" in the center blended to almost nothing at the walls. They will get glued and attached to the rafters when the roof sheathing goes on.


The original setup worked with the bud board corrugate roofing as it will flex that much, however this hard a drop of 3/4" in 8" will not work with 3/8 plywood. (actually 11/32") There would be a large gap in that area so we shimmed it to blend down hill to the next rafter. It may be that Sunline made a mistake and was supposed to put a higher rafter in this location and put the wrong one in. Don't know. Or there is a reason not apparent right now. Anyone know?

My 2004 T310SR right next to us does not have this hard drop that we can see from the outside. I'll have to investigate further.

This is all the progress to date. More as the work continues.

Thanks for looking.

John
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Old 01-24-2016, 07:26 PM   #9
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John - how long have you and your son been working on this project?

It would have taken us years to get that far!!!!! LOL
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Old 01-24-2016, 08:04 PM   #10
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Quote:
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John - how long have you and your son been working on this project?

It would have taken us years to get that far!!!!! LOL
Hi Kathy,

We started Saturday, Jan 2nd. Been working weekends or partial weekends on it. We have apprx 7.5 days into now. Due to the cold and weekends, we are not getting a full 8 hour each one of those days.

I do admit, having son working with me on camper fix'in, makes things go twice as fast. He is a "ripping" the rot out and "I'm a cutting" new wood to go in. And then we are both "a glue'ing and screw'ing"... or scrap'ing. The amount of clean up work getting off the old caulking and clean up is a job it and in itself.

Most all materials are now on order, on their way or already here. Next weekend it is supposed get get up to 45F. Ya Hoo...

When it comes time to glue the rubber roof down, progress will come to a standstill until the temperatures are right for it. That glue needs the right temps to activate. But we have enough to keep going well before that.

Thanks
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Old 01-25-2016, 05:30 AM   #11
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Great progress in such a short time!!!!!
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Old 01-25-2016, 06:07 AM   #12
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Wow! I hope you got that unit for a good price because it looks like a total rebuild! I love my Sunlines but will never understand why they used such a cheap roof design! I would much rather tow a few extra pounds then have a roof made of cardboard. It had to be more of a cost factor then a weight issue. I would love to own one of your trailers when you are finished with it!
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Old 01-25-2016, 06:19 AM   #13
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Awesome John, thanks for sharing.

Your son's luck to have his own private warrenty & repair departement
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Old 01-25-2016, 09:51 AM   #14
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Re-build

John, you and your son are doing a great job on this project and we thank you for posting the progress. Question, what is the thickness of the plywood you're placing on the roof? Hope I never have to do this repair but, will keep this post for reference.
I think Sunline used the bud board strictly to keep the weight down. Wish they had uses plywood instead and I but a lot of owners feel the same way.

Best wishes and keep posting this project. Thanks!

Dave
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