Leak Where Chimney Meets Roof

Water test the roof at the area of the chimney using a garden hose.

Leak where chimney meets roof.

We have a roof leak which seems to be mystifying our roofer. The inside surface of the chimney gets discolored or the plaster bubbles. Over time the sealant can erode and create an entryway for water. The roof shingles around a chimney can also have problems although shingles are one of the least common causes for a chimney leak.

You think a roof leak is the cause siding can be missing above a roof. 6 months after our roof was reshingled and about 2 years after a total chimney rebuild we are still dealing with a roof leak along where the chimney meets the roof of the house leaking inside and running down wall above fireplace. To repair chimney flashing leaks. Wrap the chimney with plastic and tape it securely.

2 many chimney leaks are from cracks in the chimney crown. At the point where the chimney meets the roof contractors place flashing. This is the most common cause of chimney leaks. Leaks around fireplace chimneys are common and can be hard to identify the source.

This can cause water to enter behind head flashings. You can see that the very purpose of the chimney crown is to keep rain out. This debris can allow water to pool or ice to build up which makes degrades flashing and sealants and allows water to leak around your chimney. Your chimney flashing is the area where your chimney comes through the roof or close to the roof and prevents moisture and other debris from getting in between the chimney and roof.

The chimney crown is the cement part on top of the chimney. Though flashing is usually made of durable aluminum it can still become damaged over time. If the leak does show up in this area have an expert check and repair the shingles. If your roof still leaks it is not the chimney.

If your steep roof creates a sharp valley where it meets the chimney you may have a buildup of leaves sticks or other debris that sit above your chimney. Inspect the flashing for gaps or cracks. To do this ask an assistant to observe the area of the ceiling near the chimney and run water along the sealed gaps of the. Many residential roofers lack the sheet metal expertise to handle reflashing a chimney.

This is meant to create a waterproof seal to keep moisture out of the home and prevent leaks in the chimney and attic. 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. Sometimes a chimney may start to leak only after a very wet series of storms. Flashing is usually aluminum and is sealed down with tar or another waterproof sealant.