Flat Roof Leaking Around Chimney

The mortar grout is usually the first to go.

Flat roof leaking around chimney.

Most of the time the metal flashing has to be inserted into a slot into the face of the brick. Repairing the flashing on a chimney. Sometimes a chimney may start to leak only after a very wet series of storms. The flashing on a chimney is one of the biggest reasons for roof leaks.

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. Wrap the chimney with plastic and tape it securely. Mortar cracks chimney flashing and crown deterioration on a chimney will contribute to leaks on a flat roof. If your roof still leaks it is not the chimney.

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. Applying roofing cement to gaps between metal flashing and the chimney. Expert advice on how to repair roof flashing and chimney flashing prevent ice dams and solve other roof flashing problems.

Oh yeah don t use the fireplace with your chimney covered with plastic and this is not how to fix a leaking chimney. Leaks around fireplace chimneys are common and can be hard to identify the source.