My one year old Simpson-Duravent chimney system leaks, and I'm wondering if anyone else has experienced a similar kind of leak, and what their fix was. Over the summer water has followed my 16' chimney, through the mounting box, down the stove pipe and onto my stove. I assumed some detail of my flashing was at fault. So I crawled in my attic on a rainy day and saw that the flashing appears watertight, but that water was dripping out of the seam between the top two 4' lengths of chimney. This seam is about 8" below the flashing. I do have a chimney cap that matches the chimney. I'm guessing that the top of the chimney isn't watertight, and water is running through the chinmey insulation. I'll contact the manufacturer tommorow.
Thanks for any ideas you may have,