Flat Roof Leaking Around Chimney

Wrap the chimney with plastic and tape it securely.

Flat roof leaking around chimney.

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. All chimneys need maintenance over time. The mortar grout is usually the first to go.

That part of the flashing is very vulnerable to leaks. Oh yeah don t use the fireplace with your chimney covered with plastic and this is not how to fix a leaking chimney. Instead sealing the chimney crown with a liquid sealant we used a rubber membrane. The flashing on a chimney is one of the biggest reasons for roof leaks.

Expert advice on how to repair roof flashing and chimney flashing prevent ice dams and solve other roof flashing problems. Applying roofing cement to gaps between metal flashing and the chimney. To perform a proper chimney leak repair is crucial for any flat roof. Leaks around fireplace chimneys are common and can be hard to identify the source.

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. If your roof still leaks it is not the chimney.