So i find myself in need to add another smaller concrete slab to my existing one. existing one is 13x15' and 4" thick and i am going to extend it another 9 foot out on the 15" side. my question is the rebar connection. would 1/2 rebar be too think to drill into that 4" slab? how often would i want to drill the connection? I was thinking spacing them out to 12-18"

Hi! I have a house with brick walls and a number of wires, cables, and electrical conduits running up the walls that raccoons may be using to climb. So I want to interrupt their ability to use these vertical routes to climb by systematically going to each of these cables and conduits and selecting a stretch of each that I will cover with about a four foot length of metal sheeting, which should be enough to thwart even the most dexterous raccoon in his climbing!. My question: what is the best way to attach the metal sheeting to the brick? Should I use epoxy? Should I use nails? Should I use screws? Something else? And do you have any pointers about exactly how I should go about doing it? I've already removed the vines that covered the walls but that has not been enough to stop them.