If your ceeling starts to cave in during when it starts to getting warm outside make sure you use some new 2x4s to prop it up. Or make sure the bugs havent got into them. In fact I wish I would have tried to find some bigger props. If you have any holes on your roof make sure the water doesnt run down and fill up the plastic ceeling. If you poke holes in the ceeling every now and then it wont pull out the wood strips holding the ceeling up. Feel free to get ahold of me if there is anything else that comes up. Oh also if the water runs down the road into the shop you can just dig a ditch to the back and throw some wafer board down to walk on.