I got four of the five biggest roof panels up on the trusses today. I've been concerned for a while about how I was going to do this. Since the playhouse is 12 feet long, it would seem panels cut to 4 feet and 8 feet could span the length off the roof. I thought I would need a friend to help me lift up a big 8 foot long panel. But since the roof hangs a little over the walls, the roof itself is a little longer than 12 feet. So it actually made sense for me to use three smaller panels that were about 48 and 51 inches long to span the length of the roof, and I was able to lift them up on to the roof by myself.