I have had a leaking chimney for some time now. I recently changed my shingles on my roof and the roofer that did it showed me that the flashing around the chimney is good. I have also sealed the brick and mortor several times but I can sit in the den when it is raining and hear a small drip drip drip falling against what sounds like it is hitting mental. Can you please give me some advice about this problem. I was thinking about covering the brick on my chimney with vinil. But I am not sure that this will solve my problem.