/diy/ - Do It Yourself

Hey guys, need some advice. I live in a floor level apartment and I’m looking to cover it on top. Basically the rain water runs through these wooden decks down to mine which carries the water and dirt from their balconies down to me. Any suggestions where I could cover this to route the water to go out the front and away from my patio? I need to figure out a temporary solution that won’t damage anything since I’m renting. I’ve thought about stapling a tarp but I’m not sure how well that would work. Any suggestions?