The previous owner of my camper had a window unit AC in the cabinet at some point in the past but it was removed before I bought the camper.He put a big vent in the outside of the camper but when he removed the AC he covered the inside of the vent with aluminum and sealed it with butyl tape.
My question is,if I remove the aluminum sheet from the vent will water get into my camper?I have already built everything to put another AC in the cabinet but I dont wont to take the aluminum off of the vent if it will leak.