by Roofer911.com |
Chimney crown leaks are inevitable with age. Just like crowns in your teeth, they can be repaired but, just like your dentist, the better the roofer and more experienced, the less often you are likely to see him. A major lesson in roof repair and leaks is to hire a contractor that not only has experience, but has grandparents raving about the fact that they rarely ever see their roof repair man, just the once or twice a year that he comes and does a free roof inspection.
Mortar crumbles when it gets old and that makes cracks. Moisture loves to find its way into every nook and cranny and of course, that just makes the cracks bigger and more plentiful. Cement also breaks up when not mixed properly, applied when the temperature was not right for it to cure properly and/or the day was too dry or too wet. Its not every roofer who knows how to mix cement, so learn this lesson well, ask to see the jobs he has done before and talk to the owners to find out how long the new crown or the patch lasted.
The crown ideally has a smooth, downward angled top that conducts the water away from the flue of the chimney. It is a few inches thick and ultimately should be reinforced with rebar to make sure that it stays in place and is secure. Polyurethane caulk is used to seal the edge of the cement where it interfaces with the clay flue to prevent chimney crown leaks.
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