I have a double-flue chimney that has a leaky cap. It gets saturated with water, then drips down into the wall cavity. I don't think it has yet caused any real rot (hope not anyway) but I need to seal it from the elements. I tried cleaning it with bleach/Jomax .. let it dry thoroughly, then gave it 2 coats of RustOleum's epoxy-based concrete paint. It held for about a year, but it is now coming off in big flakes & pieces. What type of material is best to seal this porous surface ?? ?? I thought about the paint they use on mobile home roofs, but am looking for opinions. How about that rubber membrane they use in shower-pans ?? ?? Just thinking out loud .. .. .. any ideas/thoughts would be much appreciated.
- posted
16 years ago