So this is the lean to on my barn. As you can see there isn't much of a pitch. When the snow began to melt this spring it just sat on the lean to roof. Which caused some of the water that was coming off the main part of the barn to drain inside my barn. My barn isn't finished off inside yet so it just made a mess. But I want to finish it off inside so I'm going to take off 2' on the left side wall of the lean to. Here is the problem. Anybody have experience with removing these little buggers. I plan on reusing the steel on the barn and I don't want to beat it up as I try to pull out the nails. I'll be replacing the nails so I don't care what happens to them I just need to be careful with the steel. I only have about 500 to pull out. I messed around with a claw hammer a little bit but I'm afraid that's going to beat the steel up more than I want. Anybody got tips or is there a tool that I need to buy? Help!