I was very happy to score a 13'x8' and 6' high dog run on Craigslist for $75. The thing is a BEAST and is perfect for my set-up as a chicken run. Do I need chicken wire around the bottom of it? Chicks will be 6 or 7 weeks old when put out there. (The whole coop and run will be enclosed by 164' electric poultry fencing). Also, what would you put over the top in the snowy upstate, NY? Would love to have something to deflect the snow off--have heard old shower curtains make great windbreaks for runs. Would like to encourage chickens to go out in the run, even in the winter. Thanks!