Mark, I put galvanized on a 60 foot horse barn that I built for our Tennessee Walking Horses. If you are referring to this type (ribbed) you put it on with ringed galvanized nails with neopreme washers. Not hard at all if you have someone to help you put them on the roof. If you have to made any cuts, you will need a circular saw with a metal cutting blade. Also you can buy the clear or colored panels to accomplish the skylight effect you are looking for .