DIYers-Ever put on a roof?

[Jason Beal]

My goal is to start buying homes and rehabbing them in the next few months. I have done most everything on houses and feel comfortable all around. I don't like electrical, (friend of mine died from electricity years back) but that's it. I have read about roofing, and it doesn't seem that difficult. Seems pretty straight forward.

Has anybody here got up there and done this? The entire job? Anybody done a tile roof? (I am helping this guy rehab a house now and he is giving me 1400 sq feet of Spanish roofing tile on the side )

How hard would you rate these jobs? Is it just take your time and patience? Or a little more than that?

Thanks.