Flat Roof Leaking Around Chimney

Mortar cracks chimney flashing and crown deterioration on a chimney will contribute to leaks on a flat roof.

Flat roof leaking around chimney.

Oh yeah don t use the fireplace with your chimney covered with plastic and this is not how to fix a leaking chimney. The mortar grout is usually the first to go. That part of the flashing is very vulnerable to leaks. To perform a proper chimney leak repair is crucial for any flat roof.

Sometimes a chimney may start to leak only after a very wet series of storms. 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. If your roof still leaks it is not the chimney.

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. Leaks around fireplace chimneys are common and can be hard to identify the source. The flashing on a chimney is one of the biggest reasons for roof leaks.

Applying roofing cement to gaps between metal flashing and the chimney. Instead sealing the chimney crown with a liquid sealant we used a rubber membrane.