Flat Roof Leaking Around Chimney

If your roof still leaks it is not the chimney.

Flat roof leaking around chimney.

Instead sealing the chimney crown with a liquid sealant we used a rubber membrane. To perform a proper chimney leak repair is crucial for any flat roof. Mortar cracks chimney flashing and crown deterioration on a chimney will contribute to leaks on a flat roof. 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.

Leaks around fireplace chimneys are common and can be hard to identify the source. Repairing the flashing on a chimney. Wrap the chimney with plastic and tape it securely. Expert advice on how to repair roof flashing and chimney flashing prevent ice dams and solve other roof flashing problems.

Most of the time the metal flashing has to be inserted into a slot into the face of the brick. 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. The mortar grout is usually the first to go. Applying roofing cement to gaps between metal flashing and the chimney.

All chimneys need maintenance over time. That part of the flashing is very vulnerable to leaks.