Roof Leak Around Chimney Flashing

To repair chimney flashing leaks.

Roof leak around chimney flashing.

Clean any leaves or other debris out of the gap between the flashing and chimney. Chimney roof leaks are usually caused by gaps or cracks between the metal flashing used to join the chimney to the roof and the chimney. Over time the sealant can erode and create an entryway for water. When a roof leaks the problem is often due to leaks in and around the metal roof flashing that protects roof edges valleys and the junctions between roofing and obstructions such as chimneys dormers and vent pipes.

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. To repair loose roof chimney flashing. Here we look at how to repair flashing that can cause leaks. Water test the roof at the area of the chimney using a garden hose.

Use a chisel to remove any hardened roofing cement. Apply roof cement to any gaps or cracks. 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. A few easy steps to stop chimney flashing from leaking.

Apply a generous amount of roofing cement behind the flashing. Flashing is usually aluminum and is sealed down with tar or another waterproof sealant.