Flat Roof Leaking Around Chimney

Wrap the chimney with plastic and tape it securely.

Flat roof leaking around chimney.

Leaks around fireplace chimneys are common and can be hard to identify the source. Instead sealing the chimney crown with a liquid sealant we used a rubber membrane. Applying roofing cement to gaps between metal flashing and the chimney. That part of the flashing is very vulnerable to leaks.

All chimneys need maintenance over time. The mortar grout is usually the first to go. Most of the time the metal flashing has to be inserted into a slot into the face of the brick. Expert advice on how to repair roof flashing and chimney flashing prevent ice dams and solve other roof flashing problems.

The flashing on a chimney is one of the biggest reasons for roof leaks. If your roof still leaks it is not the chimney. Sometimes a chimney may start to leak only after a very wet series of storms. 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.

Repairing the flashing on a 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.