Chimney Siding Leak
The roof shingles around a chimney can also have problems although shingles are one of the least common causes for a chimney leak.
Chimney siding leak. An inexpensive way to prevent a chimney from getting worse and causing leaks this is a easy and relatively inexpensive to rebuilding a chimney. You can see that the very purpose of the chimney crown is to keep rain out. The bricks go up around the tile flue liners but at the top you need something to stop the rain and snow from just falling in around the tiles. See siding fiber cement gaps.
2 many chimney leaks are from cracks in the chimney crown. Structural movement or damage shown in a more extreme case at above right can also allow significant leaks into the building. Installation gaps in siding of any type if not back flashed invite leaks into the wall above left. Before applying the new sealant to fix the leak in your brick chimney you ll need to scrape out the previous sealant using a scraper.
And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight. If the leak does show up in this area have an expert check and repair the shingles. The chimney crown is the cement part on top of the chimney. Apply sealant to the flashing of your brick chimney using a caulking gun.