Ummm, I installed an evaporative cooler on my roof (2 stories high) myself. It weighed a few hundred pounds, I weigh about 170 and my ladder is rated at 200. How do you do it? Well, you tie a rope around your waist and the cooler so that you can pull it up. Then, get your wife to push it up from the bottom. The roof has a very steep angle too so try to hold onto the shingles. Amazingly enuf, it actually worked and I did not break my neck. I must have hundreds of stoopid ideas like that
