[John Candle]

Also Ground the coax that goes from the antenna to the inside of the house with a coax grounding block , the electric service ground wire is the best , if not that then use a cold water pipe as the ground , the cold water pipe needs to be real metal that goes into the ground , not plastic. The reason I am making a big point of this is not because of lightning , the point is that your receiving situtation has a lot of multipath and the grounded shield of the coax will direct undesirable signals to ground. Make sure to have good metal to metal electrical contact , and no , paint is not a good conductor.