Nope they don't even make noise. The only thing I hear is my ladders banging around, once there on roof should be super quit. I test drove one with Adrian shelves and I couldn't deal with the noise it was horrible.
Around 3400 and that counts adding two locking shelves. The sliding door was 1200 of that 3400. Skip the door and do the standard package with two locking shelves was I think 2600-2700.