1966 Sovereign - replacing air conditioner

[RickKuhlman]

Looking for advice to replace the AC, would I work on it from the rooftop? I don't want to put a 200 lb person up there, for fear of denting the roof. There does not seem to be a way to get at it from the interior.
Also, are there 'caps' available of some sort to place over the open vent to the range top? We do not have a range anymore, and right now the vent needs a cap, other than duct tape.
THANKS for any input!

[Melody Ranch]

The big problem for many is just getting the AC up top. If you can do that, then attaching it is easy. Set it in place on the 14 x 14 vent hole. Use Vulkem seal and tighten the four attaches. Elec and drain line are standard...and in the AC instructions. Use a few padded blankets for your sitting area and stay centered....you won't dent the top.

[dbj216]

I used a cheapo scaffolding to get the AC up to the top of the windows. Then I laid a 4x4 behind the awning. Then I found a 2x6 laid pretty flat on the roof when supported by the 4x4. I had an old piece of carpet under the 2x6 to reduce scratching. I tried to stay on top of the ribs (rivet lines). With one big lift, I got the AC up to the 2x6s, and then worked it over the hole.

I think a little support to spread the load over a larger area of the roof helps a bit. And my scaffold allowed stability while I lifted the AC about chest high to get it to the 2x6s.

David