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Old 07-03-2010, 10:12 AM   #29
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Go with Scaffolding

I did the pickup truck & ladder approach for the AC. It went relatively smooth. We had a low profile unit (<100lbs) so it was lighter than some of the other units. Truck was on the heavy end of the unit and ladder on the light end. We used some non-skid material under the unit so it would not slide off once we had it resting on the side of the AS. We set it down on a rib section, slid it up to the center and then slid it back to the hole. When working on the roof I was always laying on my side over a rib to distribute the load.

You do need 4 people for this approach. 1 person on the truck, 1 person on the ladder, 1 person holding the ladder and most importantly 1 person telling you how stupid we are for doing it this way and how unsafe it looks and warning you that they refuse to take you to the hospital when you fall off that darn thing because we were just being stupid!!

Russ
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Old 07-03-2010, 01:11 PM   #30
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Scaffold worked so far-Pics

I got both leaking vents patched till I get new ones.



Tied off ladder



Tied off platform



Double tied off work platform



Tied off work deck.



This setup feels solid and I'm not picking my spot to land.

The work platfrom lays on a carpet covered 2X4 to protect the trailer top.

My vent patches went easy and fast. Next I'll take off the TV antenna.

`
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Old 07-03-2010, 01:37 PM   #31
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TV antenna is next - pic

`
Picture shows my taped up vent cover. That was the main leak spot on this trailer.

Next to come off is the TV antenna . . .



How does the TV antenna come off? I see two slotted screws on the top part that turns and I see a lot of rivets. Can I get it off in two pieces?




Thanks!

Gary

`
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Old 07-07-2010, 04:22 PM   #32
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Installing objects on roof of AS

Hm......mmmm. I have been planning to install a new vent/fantastic fan or something into the vent that is about 14x20 that is about between the sink area and fridge area of our 31 ft. rear bath Soverign. The old vent leaks and I have roughly sealed it off, but it still leaks. I have looked at all of the options for climbing on the roof and have decided.....to get a bigger bucket to catch the drips when it leaks and save up my money to have it done at a reputable dealer. DIY is great, but on the roof? no way. Life is to short to not have an Airstream, but also too short to climb on a curved roof *<)
cheers, bill b.
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Old 07-07-2010, 05:44 PM   #33
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squirrels slide off my trailer

On slow afternoons I sit and watch the squirrels slide off my trailer.

How about some knee pads with suction cups for AS roof work?

My next task is to replace the air conditioner. That should be fun.
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Click on the link to see a picture of the Sioux River falls near my home.
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Old 07-07-2010, 05:57 PM   #34
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Quote:
My plan is to train my wife to work on the roof. This effort may take some time.
DAMMIT!
NOW i know why im the one up there installing the vent and skylight!!!
- wife
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Old 07-08-2010, 05:10 AM   #35
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LOL! I can't even get my wife to WATCH me work on the roof. She says it makes her nervous.
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Old 07-08-2010, 07:23 AM   #36
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We used ladders on both sides with a board across the top for support when we replaced the AC unit last year.
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Old 07-08-2010, 10:16 AM   #37
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I'm married, so I work alone. I decided I need the large outdoor casters for the scaffold I bought last week. I saw a set on the shelf at Menards where I got the scaffold. When I got back to Menards, the casters were gone! These are nice guys at my east Sioux Falls store, they called the west store and they had a set of the wheels. They saved them for me till I got there. Good job guys!

While I was west river, I stopped at Home Depot and they had Vulkem 116 grey for $4.97 a tube. I popped for 4 tubes.

Air conditioner update: I have the screws out of the air conditioner on three sides. I softened up the 35 year old Vulkem with the heat gun and it came right off. Every screw came out on the first try. One more side and then I'll jack it out of the hole with a custom Airstream air conditioner pedestal jack.
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Old 07-08-2010, 12:33 PM   #38
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Where is the person that had a thread like this not too long ago? Their solution was to pull 2 high panel trucks alongside the trailer(one on each side) and put boards across for a work area. There are pictures of it in the thread too, if you can find it. I couldn't.
Just need to know somebody who has a couple of trucks.
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Old 07-08-2010, 01:00 PM   #39
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Great thread, if only for the comedy :-0

I can hardly wait for more photos, especially of the custom Airstream air conditioner pedestal jack. Is it a modified drywall jack?
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Old 07-08-2010, 03:43 PM   #40
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see posts 9 & 22

http://www.airforums.com/forums/f478...eam-26490.html
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Old 07-08-2010, 09:22 PM   #41
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The OEM air conditioner was screwed to the top of the trailer.

Vulkem old, hard, and dry, over 15 screws on each tab.



I waited until the heat of the day to remove the screws. Nice!

I cut the edge loose and then went inside and jacked it up.



The jack is a load stabilizer from a truck. I zip tied it to a board so it wouldn't fall over and scab up the floor. Did I mention I work alone?



When I went back up top, the unit was balanced on the jack and floating 1 inch above the trailer top. I rolled it onto the slab door I'm using as an auxiliary work platform without damaging the unit. When my son came to pick up his two sons from grandma day-care, he helped me set the unit in the tractor bucket. I strapped it in the bucket and stored it inside. The unit is all there and the fan runs. The shroud is good but it needs to be cleaned and painted. I didn't bang anything up taking it down.




The weight of the old unit is at the front of the hole and about 2 feet back from the front of the hole. The hole itself is not supported at all on three sides.

The new unit sets in the hole but it has weight distribution pads in addition to the seal. The new unit is just held by 4 long bolts installed from the inside. The new unit is a DuTherm 13.5. I picked it up from a dealer yesterday for $540 including 4% tax. The RV dealer quoted me 700 for this unit and 300 to install it. I doubt he'd install it for 300 after he saw those cemented in 60 screws.




The new unit came with the inside trim designed for a flat ceiling. I expect I'll just make a couple nice fillers.

Before I install the new unit I'll reinforce the hole and extend my support to all 4 neighboring ribs. It looks like the back of the unit will set on the rear rib, so the reinforced hole will have the job of compacting the seal and keeping the water out. If I live long enough to ever change this unit out, next time it'll take a couple hours . . . maybe.




I left the job season overnight with a nice tarp covering the roof.
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Click on the link to see a picture of the Sioux River falls near my home.
http://img.photobucket.com/albums/v1...g?t=1278182564
Eastern South Dakota is very pretty with hills, rivers, and trees.
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Old 07-10-2010, 04:10 PM   #42
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New Air Conditioner

The new air conditioner is installed and test running. I got the old one loose and on the scaffold by myself and my son helped me gently lay it in the tractor dirt bucket. The new one, I got installed by myself. I blanket wrapped the new one and tied it in the bucket, removed the scaffold side stabilizers at the top level and laid the new unit on the scaffold deck with the loader.

Then I just lifted it onto the old hole that I reinforced with 1 1/2" dried untreated ribs and cross supports. I cut the ribs to the profile of the old air conditioner trim. They were 1 3/4" thick and 20" long. I installed three hoops and two lateral roof supports, so the roof is supported back to the first body rib behind the air conditioner. From the top, the body has a nice visual radius under the new unit. The gasket compressed more than in half in the center and not as much on the sides. I installed a car windshield seal under the gasket, so we'll see how well I did.

The original roof hole was off center by about 3/4" to the curb side when measured by the interior roof panel trim strips. Maybe the trim strips are not equally spaced. Whatever . . . It's not going to bother me if the unit is leak free and it cools. There was no insulation in the roof center section. I guess that surprised me a little. No problem, I'da had to remove it anyway to add my support system.

This is my major deal for a while. Now, I'll repair a few floor boards after I get the leaking windows and ? fixed.
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Click on the link to see a picture of the Sioux River falls near my home.
http://img.photobucket.com/albums/v1...g?t=1278182564
Eastern South Dakota is very pretty with hills, rivers, and trees.
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