Some of the prices on these hammers nowadays is outright scarey.

Titanium heads with aluminum handles. Cha Ching$$
Ya, know
TAB I think I would have just rented a laddervator to get that stuff to the roof. Back in the day, I worked for a residential contractor who had 200 Simmons concrete forms. They were the 2 footers by 9 footers. So we reckoned that they each weighed about 108 pounds. Then the guy had all the outside and inside corners and fillers too. One day at this filthy mud hole of a basement job, I alone unloaded 7,000 pounds worth of forms off this guy's trailer and then dropped/spread them out in this hole for the basement.
I think I learned a lesson that day. Never go to work for a guy who has been hurt more on jobsites than you have. That guy doesn't give a crap about his own welfare or safety, so how do you think he is going to treat you?