my fireplace has started leaking . it is coming in behind the laid rock i have regrouted the top of the chimney and tared underneath around the clay tile. slowed it down alot but still have it leaking thruogh not quit as bad. any suggestion on how to stop it. a freind i work with says it may be coming thruogh the side of the laid rock . the fireplace is laid block around fireplace metal . then hand chipped rock laid around the block. any help would be appreciated