I do residential, but have never done commercial. I need to give a bid for a shopping center. I measured it and it has about 35,000 square feet of wall (stucco, brick) and about 15,000 square feet of metal roof that's also gonna get painted. It's going to be 3 different colors, deep colors. I will need a lift for about 1 week to get up there. There isn't much prep time and I can work whenever I want since it's vacant.
uh i think your on the wrong web site. its nice that you own a comet but this section and site is intended for automotive topics, not painting buildings and what not. If you need help with your comet then ask away.
This is definitely off-topic. Don't know much about commercial painting but I am sure your paint supplier would help you calculate your needs.