Flat Roof Leaking Around Chimney

Applying roofing cement to gaps between metal flashing and the chimney.

Flat roof leaking around chimney.

Sometimes a chimney may start to leak only after a very wet series of storms. Instead sealing the chimney crown with a liquid sealant we used a rubber membrane. 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. If your roof still leaks it is not the chimney.

Most of the time the metal flashing has to be inserted into a slot into the face of the brick. 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. Mortar cracks chimney flashing and crown deterioration on a chimney will contribute to leaks on a flat roof.

Repairing the flashing on a chimney. All chimneys need maintenance over time. 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 flashing on a chimney is one of the biggest reasons for roof leaks.

Oh yeah don t use the fireplace with your chimney covered with plastic and this is not how to fix a leaking chimney. To perform a proper chimney leak repair is crucial for any flat roof.